Journals

P. Theodorou and A. Meliones, ‘Towards a Training Framework for Improved Assistive Mobile App Acceptance and Use Rates by Blind and Visually Impaired People’, Education Sciences, MDPI, 2020, 10, 58, March 2020, doi:10.3390/educsci10030058.

A. Meliones and D. Pappas, ‘Data Fusion and Tracking in a Simulated Multiradar Air Command and Control System’, Journal of Sensing and Imaging, 21(44), August 2020, Springer, DOI: 10.1007/s11220-020-00303-5.

Α.-Α. Α. Boulogeorgos, E. Papasotiriou, and A. Alexiou, “Analytical Performance Assessment of THz Wireless Systems”, IEEE Access, Volume: 7, January 2019.

I.-P. Belikaidis, A. Georgakopoulos, K. Tsagkaris, Z. Altman, S. Ben Jemaa, M. Michaloliakos, P. Demestichas, N. Mitrou, “System-level Evaluation and Management of 5G RAN Slicing Concept”, accepted for publication in IEEE Vehicular Technology Magazine, September 2019

A. Meliones, E. Touloupis, J. Perello, Embedded Parallelism Enabling Ultralow-Power Zigbee Voice Communications, Journal of Computer Networks and Communications, Hindawi, 14p., Feb 2019, https://doi.org/10.1155/2019/6595282.

S. Stefanatos, A. G. Gotsis, and A. Alexiou, “Cross-Mode Interference Characterization in Cellular Networks with Voronoi Guard Regions”, IEEE Trans. on Wireless Communications, Volume: 17 , Issue: 11 , pp. 7576 – 7589, Nov. 2018 .

I. Poulakis, A. G. Gotsis, A. Alexiou, “Multicell Device-to-Device Communication: A Spectrum-Sharing and Densification Study”, IEEE Vehicular Technology Magazine, Vol. 13, No. 1, pp. 85-96, March 2018.

D. Sabella, P. Serrano, G. Stea, A. Virdis, I. Tinnirello, F. Giuliano, D. Garlisi, P. Vlacheas, P. Demestichas, V. Foteinos, N. Bartzoudis and M. Payaro, “Designing the 5G network infrastructure: a flexible and reconfigurable architecture based on context and content information”, EURASIP Journal on Wireless Communications and Networking, August 2018, doi: https://doi.org/10.1186/s13638-018-1215-1

C. Bockelmann, N. K. Pratas, G. Wunder, S. Saur, M. Navarro, D. Gregoratti, G. Vivier, E. De Carvalho, Y. Ji, C. Stefanovic, P. Popovski, Q. Wang, M. Schellmann, E. Kosmatos, P. Demestichas, M. Raceala-Motoc, P. Jung, S. Stanczak and A. Dekors, “Towards Massive Connectivity Support for Scalable mMTC Communications in 5G networks”, IEEE Access, December 2018, doi: 10.1109/ACCESS.2018.2837382

A.-A. A. Boulogeorgos, A. Alexiou, T. Merkle, C. Schubert, R. Elschner, A. Katsiotis, P. Stavrianos,D. Kritharidis, P.-K. Charsias, J. Kokkoniemi, M. Juntii, J. Lehtomaki, A. Teixeira, and F. Rodrigues, “Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless System Beyond 5G”, IEEE Commun. Mag., vol. 56, no. 6, pp. 144–151, June 2018.

A. Meliones and D. Sampson, «Blind MuseumTourer: A System for Self-Guided Tours in Museums and Blind Indoor Navigation», Technologies, 2018, 6(4), MDPI, doi:10.3390/technologies6010004

A. A. Boulogeorgos, A. Alexiou, T. Merkle, C. Schubert, R. Elschner, A. Katsiotis, P. Stavrianos, D. Kritharidis, P.-K. Chartsias, J. Kokkoniemi, M. Juntti, J. Lehtomäki, A. Teixeira, and F. Rodrigues, “Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G”, IEEE Communications Magazine, Vol. 56, No. 6, pp. 144 – 151, June 2018.

S. Stefanatos, and A. Alexiou, “On the Competition Among Small Cell Wireless Operators with Large Scale Deployments”, IEEE Trans. on Mobile Computing, Vol.16, No. 7, pp.1981-1993, July 2017.

I.-P. Belikaidis, S. Vassaki, A. Georgakopoulos, A. Margaris, F. Miatton, U. Herzog, K. Tsagkaris and P. Demestichas, “Context-aware radio resource management below 6 GHz for enabling dynamic channel assignment in the 5G era”, EURASIP Journal on Wireless Communications and Networking, September 2017, doi: 10.1186/s13638-017-0946-8

I.-P. Belikaidis, A. Georgakopoulos, P. Demestichas, B. Miscopein, M. Filo, S. Vahid, B. Okyere, M. Fitch, “Multi-RAT dynamic spectrum access for 5G heterogeneous networks: the SPEED-5G approach”, IEEE Wireless Communications, Vol. 24, No. 5, pp. 14-22, October 2017, doi: 10.1109/MWC.2017.1700085

George Kyriazis and Angelos Rouskas, “Joint Access and Backhaul Power Consumption Optimization in Heterogeneous Mobile Broadband Networks”, Journal of Green Engineering, River Publishers, doi: 10.13052/jge1904-4720.641, April 2017, https://doi.org/10.13052/jge1904-4720.641.

Angelos Rouskas, George Kyriazis, and Dimitris Komnakos, “Green optimization schemes for mobile network design and operation”, Wireless Personal Communications, Springer, doi: 10.1007/s11277-017-4350-9, May 2017, http://link.springer.com/article/10.1007/s11277-017-4350-9.

U. Herzog, A. Georgakopoulos, I. -P. Belikaidis, M. Fitch, K. Briggs, S. Diaz, �. Carrasco, K. Moessner, B. Miscopein, S. Mumtaz, and P. Demestichas, “Quality of service provision and capacity expansion through extended-DSA for 5G”, Transactions on Emerging Telecommunications Technologies, vol. 27, no. 9, pp. 1250�1261, September 2016, doi: 10.1002/ett.3061

F. Schaich, B. Sayrac, S. Elayoubi, I.-P. Belikaidis, M. Caretti, A. Georgakopoulos, X. Gong, E. Kosmatos, H. Lin, P. Demestichas, B. Mouhouche, K. Pedersen, N. Pratas, M. Schellmann, M. Schubert, M. Shaat, and G. Wunder, “FANTASTIC-5G: Flexible air interface for scalable service delivery within wireless communication networks of the 5th generation”, Transactions on Emerging Telecommunications Technologies, vol. 27, no. 9, pp. 1216�1224, September 2016, doi: 10.1002/ett.3050

A.G. Gotsis, S. Stefanatos, and A. Alexiou, “Ultra Dense Networks: The New Wireless Frontier for Enabling 5G Access”, IEEE Vehicular Technology Magazine, Vol. 11, No. 2, pp.71-78, June 2016.

A. Georgakopoulos, A. Margaris, K. Tsagkaris, P. Demestichas, “Resource sharing in 5G contexts: achieving sustainability with energy and resource efficiency”, IEEE Vehicular Technology Magazine, vol. 11, no. 1, pp. 40-49, March 2016

V. Foteinos, K. Tsagkaris, P. Peloso, L. Ciavaglia, P. Demestichas, “Energy-aware allocation of traffic to optical lightpaths in multilayer core networks”, accepted for publication in the International Journal of Network Management, May 2015, DOI: 10.1002/nem.1890

S. Stefanatos, A. G. Gotsis, and A. Alexiou, “Operational Region of D2D Communications for Enhancing Cellular Network Performance”, IEEE Trans. on Wireless Communications, Vol. 14, No. 11, pp.5984-5997, November 2015.

S. Apostolacos, A. Meliones (corr.), S. Badessi, G. Stassinopoulos, “Adaptation of the E-model for satellite internet protocol radio calls in Air Traffic Control”, IEEE Transactions on Aerospace and Electronic Systems, 50(1), January 2015.

Pavlos Kosmides, Evgenia Adamopoulou, Konstantinos Demestichas, Michael Theologou, Miltiades Anagnostou, and Angelos Rouskas, “Socially Aware Heterogeneous Wireless Networks”, MDPI – Open Access Publishing, Sensors 2015, 15, pp 13705-13724, doi:10.3390/s150613705.

P. Demestichas, A. Georgakopoulos, K. Tsagkaris, S. Kotrotsos, “Intelligent 5G networks: managing 5G wireless/mobile broadband”, IEEE Vehicular Technology Magazine, Vol.10, No.3, pp.41-50, Sept. 2015

K. Tsagkaris, V. Foteinos, M. Michaloliakos, G. Poulios, M. Logothetis and P. Demestichas, “Autonomic OpenFlow: Experimentation Framework for Autonomic Software Defined Networks”, CONNECT Magazine, GEANT (GN3plus) project, no. 18, pp. 32-33, 2015

K. Tsagkaris, M. Logothetis, V. Foteinos, G. Poulios, M. Michaloliakos, P. Demestichas, “Customizable autonomic network management: integrating autonomic network management and software-defined networking”, IEEE Vehicular Technology Magazine, Vol.10, No.1, pp.61-68, Mar. 2015

K. Tsagkaris, G. Poulios, P. Demestichas, A. Tall, Z. Altman, C. Destre, “An open framework for programmable, self-managed Radio Access Networks”, IEEE Communications Magazine, Vol.53, No.7, pp.154-161, July 2015

George Kyriazis and Angelos Rouskas, “Design and Operation of Energy Efficient Heterogeneous Mobile Networks”, Springer Wireless Networks, DOI 10.1007/s11276-015-1083-0, online Oct 5, 2015.

D. Karvounas, A. Georgakopoulos, V. Stavroulaki, K. Tsagkaris, P. Demestichas, “Evaluation of signaling load in control channels for the cognitive management of opportunistic networks”, Transactions on Emerging Telecommunications Technologies, Vol. 26, No.5, pp.929-944, May 2015

Y. Wang, J. Li, L. Huang, J. Yao, A. Georgakopoulos, P. Demestichas, “5G Mobile: Spectrum Broadening to Higher-Frequency Bands to Support High Data Rates”, IEEE Vehicular Technology Magazine, vol.9, no.3, pp.39-46, 2014

V. Stavroulaki, N. Koutsouris, Y. Kritikou, P. Demestichas, “Cognitive management of devices in the wireless networks”, Wireless Personal Communications Journal, Vol. 75, No.4, pp. 2289-2322, Apr. 2014, DOI: 10.1007/s11277-013-1468-2

V. Foteinos, K. Tsagkaris, P. Peloso, L. Ciavaglia, P. Demestichas, “Operator-friendly traffic engineering in IP/MPLS core networks”, IEEE Transactions on Network and Service Management, Vol.11, No.3, pp. 333-349, Sept. 2014

S. Stefanatos, and A. Alexiou, “Access Point Density and Bandwidth Partitioning in Ultra Dense Wireless Networks”, IEEE Trans. on Communications, Vol. 62, No. 9, pp. 3376-3384, September 2014.

P. S. Bithas, A. S. Lioumpas and A. Alexiou, “Exploiting Spatial Correlation in Distributed MIMO Networks,” International Journal of Electronics and Communications (AEU), Vol. 68, No. 3, pp. 270-276, March 2014.

P. Demestichas, A. Georgakopoulos, “Wireless Communications and the Smart Grid: An Overview of the Joint WWRF/SmartGridComm Workshop”, IEEE Vehicular Technology Magazine, Guest Editorial, vol.9, no.1, pp.24-25, 2014

D. Karvounas, A. Georgakopoulos, K. Tsagkaris, V. Stavroulaki, P. Demestichas, “Smart Management of D2D Constructs: An Experiment-based Approach”, IEEE Communications Magazine, vol.52, no.4, pp.82-89, 2014

A. Alexiou, “Wireless World 2020: Radio Interface Challenges and Technology Enablers”, IEEE Vehicular Technology Magazine, Vol. 9, No. 1, pp. 46-53, March 2014.

A. Meliones, S. Apostolacos, A. Nouvaki, «A Web-based Three-Tier Control and Monitoring Application for Integrated Facility Management of Photovoltaic Systems», Applied Computing and Informatics, Elsevier, 2014, 10(1-2), 14–37.

A. Bantouna, G. Poulios, K. Tsagkaris, P. Demestichas, “Network load predictions based on big data and the utilization of self-organizing maps”, Journal of Network and Systems Management, Vol. 22, No. 2, pp. 150-173, Apr. 2014

V. Foteinos, K. Tsagkaris, P. Peloso, L. Ciavaglia, P. Demestichas, “Energy-aware allocation of traffic to optical lightpaths in multilayer core networks”, submitted for publication to the IEEE/OSA Journal of Lightwave Technology, 2013

V. Foteinos, D. Kelaidonis, G. Poulios, P. Vlacheas, V. Stavroulaki, P. Demestichas, “A Cognitive management framework for enabling autonomous applications in the Internet of Things”, IEEE Vehicular Technology Magazine, Vol. 8, No.4, pp.90-99, Dec. 2013

Pavlos Kosmides, Angelos Rouskas, and Miltiades E Anagnostou, “Utility-based RAT Selection Optimization in Heterogeneous Wireless Networks”, Elsevier Pervasive and Mobile Computing, http://dx.doi.org/10.1016/j.pmcj.2013.03.007, available online April 15, 2013.

P. Vlacheas, R. Giaffreda, V. Stavroulaki, D. Kelaidonis, A. Somov, V. Foteinos, G. Poulios, A.-R. Biswas, K. Moessner, P. Demestichas, “Enabling smart cities through a cognitive management framework for the Internet of Things”, IEEE Communications Magazine, vol.51, no.6, 2013

P. S. Bithas, A. S. Lioumpas and A. Alexiou, “Mitigating Shadowing Effects Through Cluster-Head Cooperation Techniques,” IET Networks, vol. 2, no. 2, p. 71-80, June 2013.

P. Demestichas, A. Georgakopoulos, D. Karvounas, K. Tsagkaris, V. Stavroulaki, J. Lu, C. Xiong, J. Yao, “5G on the Horizon: Key Challenges for the Radio Access Network”, IEEE Vehicular Technology Magazine, vol.8, no.3, pp.47-53, 2013

K. Tsagkaris, G. Nguengang, A. Galani, I. I. Grida Ben Yahia, M. Ghader, A. Kaloxylos, M. Gruber, A. Kousaridas, M. Bouet, S. Georgoulas, A. Bantouna, N. Alonistioti, P. Demestichas, “A survey of autonomic networking architectures: towards a unified management framework”, submitted for publication to the International Journal of Network Management, 2013

D. Kelaidonis, A. Somov, V. Foteinos, G. Poulios, V. Stavroulaki, P. Vlacheas, P. Demestichas, R. Giaffreda, A.-R. Biswas, “A cognitive management framework for smart objects and applications in the Internet of Things”, submitted for publication to the Mobile Networks and Applications (MONET) journal, 2013

D. Karvounas, P. Vlacheas, A. Georgakopoulos, V. Stavroulaki, P. Demestichas, “Enriching Self-Organizing Networks Use Cases with Opportunistic Features: A Capacity and Coverage Optimization Paradigm”, International Journal of Network Management, Special Issue on Managing Self-Organizing Radio Access Networks, vol.23, no.4, pp.272-286, 2013, Wiley

D. Karvounas, A. Georgakopoulos, K. Tsagkaris, P. Demestichas, “Wireless access infrastructures expansions through Moving Cognitive Access Points and bio-inspired intelligence”, submitted to IEEE Journal on Selected Areas in Communications, 2013

A. G. Gotsis, A. S. Lioumpas and A. Alexiou, “Analytical Modeling and Performance Evaluation of Realistic Time-Controlled M2M Scheduling over LTE Cellular Networks,” Transactions on Emerging Telecommunications Technologies (ETT), special issue on Machine-to-Machine: An Emerging Communication Paradigm, vol. 24, no. 4, pp. 378-388, June 2013.

A. Lioumpas, P. S. Bithas and A. Alexiou, “Partitioning of Distributed MIMO Systems based on Overhead Considerations,” IEEE Wireless Communications Letters, Vol.2, No.6, pp. 579-582, December 2013.

V. Stavroulaki, K. Tsagkaris, P. Demestichas, J. Gebert, M. Mueck, A. Schmidt, R. Ferrus, O. Sallent, M. Filo, C. Mouton, L. Rakotoharison, “Cognitive Control Channels: From concept to identification of implementation options”, IEEE Communications Magazine, vol.50, no.7, pp.96-108, 2012

V. Stavroulaki, A. Bantouna, Y. Kritikou, P. Demestichas, K. Tsagkaris, P. Blasco, C. Bader, M. Dohler, D. Denkovski, V. Atanasovski, L. Gavrilovska, K. Moessner, “Learning and Knowledge Management toolbox for Cognitive Radio Network applications”, IEEE Vehicular Technology Magazine, vol.7, no.2, pp.91-99, 2012

V. Foteinos, K. Tsagkaris, P. Peloso, L. Ciavaglia, P. Demestichas, “Energy Savings with Multilayer Traffic Engineering in Future Core Networks”, Journal of Green Engineering, vol.2, no.3, pp.195-214, 2012, River Publishers

P. Vlacheas, V. Stavroulaki, P. Demestichas, S. Cadzow, D. Ikonomou, S. Gorniak, “Towards an end-to-end network resilience”, accepted for publication in International Journal of Critical Infrastructure Protection, 2012

M. Logothetis, K. Tsagkaris, P. Demestichas, “Application and Mobility Aware Integration of Opportunistic Networks with Wireless Infrastructures”, accepted in Computers and Electrical Engineering, 2012

K. Tsagkaris, A. Bantouna, P. Demestichas, “Self-organizing maps for advanced learning in cognitive radio systems”, Computers & Electrical Engineering, vol.38, no.4, pp.862-881, 2012, Elsevier

H. Hangras, C. Wagner, A. Kameas, C. Goumopoulos, A. Meliones (corr.), L. Seremeti, Y. Bellik, G. Pruvost, T. Heinroth, W. Minker, «Symbiotic Ecologies in Next Generation Ambient Intelligent Environments», International Journal of Next Generation Computing, March 2012, pp. 52-86.

G. Dimitrakopoulos, V. Koutra, P. Demestichas, “Intelligent Management Functionality for Improving Transportation Efficiency by Means of the Car Pooling Concept “, IEEE Transactions on Intelligent Transportation Systems, Vol. 13, No. 2, pp. 424 – 436, 2012 Journal Papers

E. Touloupis, A. Meliones (corr.), S. Apostolacos, «Speech Codecs for High Quality Voice-over-ZigBee Applications: Evaluation and Implementation Challenges», IEEE Communications Magazine, 50(4): 122-128, April 2012.

D. Karvounas, K. Tsagkaris, P. Demestichas, “Nature-inspired optimization of Moving Access Point – based radio networks”, Annals of Telecommunications, vol. 67, no. 9, pp.423-436, 2012, Springer

D. Karvounas, A. Georgakopoulos, V. Stavroulaki, N. Koutsouris, K. Tsagkaris, P. Demestichas, “Resource allocation to femtocells for coordinated capacity expansion of wireless access infrastructures”, EURASIP Journal on Wireless Communications and Networking: Special Issue on Femtocells in 4G Systems, 2012:310

D. Karvounas, A. Georgakopoulos, D. Panagiotou, V. Stavroulaki, K. Tsagkaris, P. Demestichas, “Achieving energy efficiency through the opportunistic exploitation of resources of infrastructures comprising cells of various sizes”, Journal of Green Engineering, vol.2, no.3, pp.233-253, 2012, River Publishers

A. Georgakopoulos, K. Tsagkaris, D. Karvounas, P. Vlacheas, P. Demestichas, “Cognitive networks and systems for a wireless Future Internet: status and emerging challenges”, IEEE Vehicular Technology Magazine, vol.7, no.3, pp.48-56, 2012

A. Georgakopoulos, D. Karvounas, V. Stavroulaki, K. Tsagkaris, M. Tosic, D. Boskovic, P. Demestichas, “Scheme for Expanding the Capacity of Wireless Access Infrastructures through the Exploitation of Opportunistic Networks”, Mobile Networks and Applications (MONET), vol.17, no.4, pp.463-478, 2012, Springer

A. G. Gotsis, A. S. Lioumpas and A. Alexiou, “M2M Scheduling over LTE: Challenges and new Perspectives”, IEEE Vehicular Technology Magazine, vol. 7, no. 3, pp. 34-39, Sep. 2012).

A. Bantouna, V. Stavroulaki, Y. Kritikou, K. Tsagkaris, P. Demestichas, K. Moessner, “An overview of learning mechanisms for cognitive systems”, accepted in EURASIP Journal on Wireless Communications and Networking, 2012

V. Stavroulaki, K. Tsagkaris, M. Logothetis, A. Georgakopoulos, P. Demestichas, J. Gebert, M. Filo, “Opportunistic Networks: an approach for exploiting cognitive radio networking technologies in the Future Internet”, IEEE Vehicular Technology Magazine, vol.6, no.3, pp.52-59, 2011

K. Tsagkaris, P. Vlacheas, G. Athanasiou, V. Stavroulaki, S. Filin, H. Harada, J. Gebert, M. Mueck, “Autonomics in wireless network management: Advances in standards and further challenges”, IEEE Network Magazine, vol.25, no.6, pp.41-49, 2011

K. Tsagkaris, M. Logothetis, P. Demestichas, “Investigation of the QoS provision potentials of the exploitation of instrastructureless segments by composite wireless networks”, Ad Hoc and Sensor Wireless Networks, vol.14, no.1-2, pp.61-105, 2011

K. Tsagkaris, M. Akezidou, A. Galani, P. Demestichas, “Evaluation of signalling loads in a cognitive network management architecture”, International Journal of Network Management, vol.22, no.3, pp.235-260, Wiley, 2011

K. Tsagkaris, G. Athanasiou, M. Logothetis, Y. Kritikou, D. Karvounas, P. Demestichas, “Introducing Energy Awareness in the Cognitive Management of Future Networks”, Journal of Green Engineering, vol.1, no.4, 2011, River Publishers

Dimitrios Komnakos, Dimitrios N. Skoutas, Demosthenes Vouyioukas and Angelos N. Rouskas, “A Delay Optimal Scheduling Policy for Real Time Services in WCDMA Systems”, Springer Wireless Personal Communications Journal, Vol. 61, Issue 2, pp 435-445, November 2011.

V. Stavroulaki, D. Petromanolakis, P. Demestichas, “Utility-Aware Cognitive Network Selections in Wireless Infrastructures”, Wireless Personal Communications Journal, doi:10.1007/s11277-010-0105-6

S. Apostolakos, A. Meliones (corr.), G. Lykakis, E. Touloupis, V. Vlagoulis, «Design, Implementation and Validation of an Open Source IP-PBX/VoIP Gateway Multi-Core SoC», International Journal of Parallel Programming, Springer, 38(3-4): 288-302, June 2010.

P. Demestichas, A. Katidiotis, V. Stavroulaki, D. Petromanolakis, “Management system for terminals in the wireless B3G world”, Wireless Personal Communications journal, Vol.53, No.1, pp.81-109, March 2010 doi:10.1007/s11277-009-9672-9

M. Mueck, A. Piipponen, G. Dimitrakopoulos, K. Tsagkaris, F. Casadevall, P. Demestichas, J. Perez-Romero, O. Sallent, G. Baldini, S. Filin, H. Harada, M. Debbah, T. Haustein, J. Gebert, B. Deschamps, P. Bender, M. Street, K. Kalliojarvi, S. Kandeepan, J. Lota, A. Hayar, “ETSI reconfigurable radio systems-status and future directions on software defined radio and cognitive radio standards”, 2010, accepted for publication to the IEEE Communications Magazine

K. Tsagkaris, A. Katidiotis, P. Demestichas, “Performance evaluation of artificial neural networks based learning schemes for cognitive radio systems”, 2010, accepted for publication in the Computers and Electrical Engineering journal

K. Nolte, A, Kaloxylos, K. Tsagkaris, T. Rosowski, M. Stamatelatos, A. Galani, E. Bogenfeld, P. Magdalinos, J. Tiemann, J. Gebert, P. Arnold, D. von Hugo, N. Alonistioti, P. Demestichas, W. Koenig, “The E3 architecture: enabling future cellular networks with cognitive and self-x capabilities”, 2010, accepted for publication to the International Journal of Network Management

G. Koutitas, P. Demestichas, “Challenges for energy efficiency in local and regional data centers”, accepted for publication in the Journal of Green Engineering

G. Dimitrakopoulos, P. Demestichas, “Intelligent transportation systems based on cognitive networking principles”, IEEE Vehicular Technology Magazine, Vol. 5, No. 1, pp. 77-84, March 2010

A. Saatsakis, P. Demestichas, “Context matching for realizing cognitive wireless networks segments”, 2010, accepted for publication to the Wireless Personal Communications journal, doi:10.1007/s11277-009-9807-z

A. Saatsakis, K. Tsagkaris, P. Demestichas, “Exploiting context, profiles and policies in dynamic sub-carrier assignment algorithms for efficient radio resource management in OFDMA networks”, 2010, accepted for publication to the Annals of Telecommunications, doi:10.1007/s12243-009-0156-4

A. Galani, K. Tsagkaris, P. Demestichas, “Information flow for optimized management of spectrum and radio resources in cognitive B3G wireless networks”, 2010, accepted for publication in the Journal of Network and Systems Management, doi:10.1007/s10922-009-9150-4

A. Galani, K. Tsagkaris, N. Koutsouris, P. Demestichas, “Design and assessment of functional architecture for optimized spectrum and radio resource management in heterogeneous wireless networks”, 2010, accepted for publication in the International Journal of Network Management

A. Alexiou et al, “MIMO and Multihop Cross-Layer Design for Wireless Backhaul –A Testbed Implementation”, IEEE Communications Magazine, Vol. 48, No. 3, pp. 172-179, March 2010.

Y. Kritikou, V. Stavroulaki, P. Demestichas, D. Bourse, A. Lee, J.M. Temerson, “Evaluation of the potentials of the business case of deploying reconfigurable segments in wireless B3G infrastructures”, Wireless Personal Communications journal, Vol. 51, No. 2, pp. 257-282, October 2009, doi:10.1007/s11277-008-9642-7

Y. Kritikou, G. Dimitrakopoulos, E. Dimitrellou, P. Demestichas. “A management scheme for improving transportation efficiency and contributing to the enhancement of the social fabric”, Telematics and Informatics journal, Vol. 26, No. 4, pp. 375-390, November 2009

P. Demestichas, A. Katidiotis, K. Tsagkaris, E. Adamopoulou, K. Demestichas, “Enhancing channel estimation in cognitive radio systems by means of Bayesian networks”, Wireless Personal Communications journal, Vol. 49, No. 1, pp. 87-105, April 2009, doi:10.1007/s11277-008-9559-1

P. Demestichas, “Introducing cognitive systems in the wireless B3G world: motivations and basic engineering challenges”, Telematics and Informatics journal, No.27, pp. 256-268, February 2010, doi:10.1016/j.tele.2009.08.002

P. Demestichas, “Enhanced network selections in a cognitive wireless B3G world”, Annals of Telecommunications journal, Vol. 64, No. 7-8, pp. 483-501, August 2009, doi:10.1007/s12243-009-0097-y

K. Tsagkaris, P. Demestichas, “WiMAX: overview and challenges beyond the air-interface”, IEEE Vehicular Technology Magazine, Vol. 4, No. 2, pp.24-35, June 2009

K. Tsagkaris, G. Dimitrakopoulos, P. Demestichas, “Policies for the reconfiguration of cognitive wireless infrastructures to 3G radio access technologies”, Wireless Networks journal, Vol. 15, No. 3, pp. 391-405, April 2009

G. Dimitrakopoulos, P. Demestichas, K. Tsagkaris, A. Saatsakis, K. Moessner, M. Muck, D. Bourse, “Emerging management concepts for introducing cognition in the B3G world”, Wireless Personal Communications journal, Vol. 48, No. 1, pp. 33-47, January 2009

G. Dimitrakopoulos, P. Demestichas, A. Saatsakis, K. Tsagkaris, A. Galani, J. Gebert, K. Nolte, “Functional architecture for the management and control of reconfigurable radio systems”, IEEE Vehicular Technology Magazine , Vol. 4, No. 1, pp. 42-48, March 2009, doi:10.1109/MVT.2008.931624

F. Boccardi, K. Yu and A. Alexiou, “Relay-Aided Multiple Antenna Transmissions for Wireless Backhaul Applications”, Bell Labs Technical Journal, vol. 13, No. 4, Spring 2009.

F. Boccardi, K. Yu and A. Alexiou, “High Data Rate Relay Transmissions with Multiple Antennas”, IEEE Transactions on Communications, Vol. 57, No. 12, December 2009.

Dimitrios N. Skoutas and Angelos N. Rouskas, “A Scheduling Algorithm with Dynamic Priority Assignment for WCDMA Systems”, IEEE Transactions on Mobile Computing, Vol. 8, No. 1, pp. 126-138, Jan. 2009.

Y. Kritikou, P. Demestichas, E. Adamopoulou, K. Demestichas, M. Paradia. “User Profile Modeling in the Context of Web – Based Learning Management Systems”. Journal of Network and Computer Applications, Volume 31, Issue 4, pp. 603 – 627, 2008

Saied M. Abd El-atty,  Dimitrios N. Skoutas, Angelos N. Rouskas and George T. Karetsos, “A Cross Layer Scheduling Framework for Supporting Bursty Data Applications in WCDMA Networks”, Springer Wireless Personal Communications, Vol. 46,  no 1, pp 33 – 45, July 2008.

Saied M. Abd El-atty,  Dimitrios N. Skoutas, and Angelos N. Rouskas, “A Guard Code Scheme for Handover Traffic Management in WCDMA Systems”, Springer International Journal of Wireless Information Networks, Vol. 15, No. 2, pp. 98-104, June 2008.

Saied M. Abd El-atty, Dimitrios N. Skoutas and Angelos N. Rouskas, “Reducing CQI Signaling Overhead in HSPA”, Hindawi Research Letters in Communications, Vol. 2008 (2008), Article ID 982805, DOI:10.1155/2008/982805.

S. Spanos, A. Meliones (corr.), G. Stassinopoulos, ‘The Internals of Advanced Interrupt Handling Techniques: Performance Optimization of an Embedded Linux Network Interface’, Computer Communications, Elsevier, 31(14): 3460-3468, September 2008.

S. Apostolacos, M. Manoussos, A. Meliones (corr.), D. Kavadas, G. Lykakis, M. Kardaris, K. Simaiakis, ‘Design and Implementation of a Solution for the Provisioning of Converged Remote Tower and Facility Management Services over Satellite IP for Greek Heliports’, IEEE Communications Magazine, 46(8),  August 2008.

K. Tsagkaris, A. Katidiotis, P. Demestichas, “Neural network based learning schemes for cognitive radio systems”, Computer Communications Journal, Vol. 31, No. 14, pp. 3394-3404, September 2008, doi:10.1016/j.comcom.2008.05.040

G. Dimitrakopoulos, P. Demestichas, N. Koutsouris, V. Stavroulaki, K. Tsagkaris, A. Katidiotis, V. Merat, W. Siegfried, “A management framework for ambient systems operating in wireless B3G environments”, Mobile Networks and Applications journal, Vol. 13, No. 6, pp. 555-568, December 2008, doi:10.1007/s11036-008-0090-0

E. Adamopoulou, K. Demestichas, P. Demestichas, M.Theologou, “Enhancing cognitive radio systems with robust reasoning”, International Journal of Communication Systems, Vol. 21, pp. 311-330, March 2008

D. Vouyioukas, G. Kambourakis, I. Maglogiannis, A. Rouskas, K. Kolias and S. Gritzalis, “Enabling the Provision of Secure Web based M-Health Services utilizing XML based Security Models”, Wiley Journal of Security and Communication Networks, Vol. 1, No 5, pp. 371 – 435, Sep/Oct 2008.

A. Rouskas, A. Kikilis and S. Ratsiatos, “A Game Theoretical Formulation of Integrated Admission Control and Pricing in Wireless Networks”, Elsevier European Journal of Operational Research, Vol. 191, No. 3, pp. 1175-1188, Dec. 2008.

Y. Kritikou, P. Demestichas, G. Dimitrakopoulos, F. Paraskeva, A. Kyriazis, M. Paradia, N. Mitsis, “Management architecture for the provision of e-services in cognitive environments”, Innovations in e-learning, instruction, technology, assessment and engineering education, pp. 417-421, Dordrecht, The Netherlands, 2007

Y. Kritikou, P. Demestichas, E. Adamopoulou, K. Demestichas, “User modelling in the context of cognitive service delivery : application to learning management systems”, Innovations in e-learning, instruction, technology, assessment and engineering education, pp. 411-416, Dordrecht, The Netherlands, 2007

P. Demestichas, G. Dimitrakopoulos, K. Tsagkaris, V. Stavroulaki, A. Katidiotis, “Introducing cognitive systems to the B3G wireless world”, Cognitive Wireless Networks: Concepts, Methodologies and Visions Inspiring the Age of Enlightenment of Wireless Communications, pp. 253-269, Springer, Dordrecht, The Netherlands, 2007

K. Tsagkaris, G. Dimitrakopoulos, P. Demestichas, “Policies for the management of services in CDMA-based segments of the B3G world”, IEEE Vehicular Technology Mag., Vol. 2, No. 3, pp. 21-28, September 2007

K. Tsagkaris, G. Dimitrakopoulos, A. Saatsakis, P. Demestichas, “Distributed radio access technology selection for adaptive networks in high-speed B3G infrastructures”, International Journal of Communication Systems, Vol. 20, No. 8, pp. 969-992, August 2007

K. Karpouzis, I. Maglogiannis, E. Papaioannou, D. Vergados, and A. Rouskas, “MPEG-21 Digital Items to Support Integration of Heterogeneous Multimedia Content”, Elsevier Computer Communications, special issue on Emerging Middleware for Next Generation Networks, vol. 30 ,  issue 3,  pp 592-607, Feb. 2007.

I. Koukoutsidis, P. Demestichas, P. Papaioannou, M. Theologou, “Optimal decision strategies for paging in wireless networks”, Wireless Communications and Mobile Computing Journal, Vol. 7, No. 4, pp. 399-413, May 2007

G. Kambourakis, D.-P. N. Kontoni, A. Rouskas and S. Gritzalis, “A PKI approach for Deploying Modern Secure Distributed e-learning and m-learning Environments”, Elsevier Computers & Education, 48 pp. 1–16, 2007.

G. Dimitrakopoulos, K. Tsagkaris, K. Demestichas, E. Adamopoulou, P. Demestichas, “A management scheme for distributed cross-layer reconfigurations in the context of cognitive B3G infrastructures”, Computer Communications, Vol. 30, No. 18, pp. 3807-3822, December 2007

D. Kouis, P. Demestichas, G. Kountourakis, M. Theologou, “Resource management of IP-enabled DVB-T networks in the context of wireless B3G systems”, Wireless Networks Journal, Vol. 13, No.2, pp. 165-175, April 2007

Angelos N. Rouskas, “Minimizing the Call Setup Delay Caused by Reconfigurations of Dedicated Channels at the Downlink of WCDMA”, IEEE Communication Letters, vol. 11, No. 11, pp. 871-873, Nov. 2007.

V. Stavroulaki, ?. Demestichas, E. Adamopoulou, P. Demestichas, “Distributed Web-based management framework for ambient reconfigurable services in the intelligent environment”, Mobile Networks and Applications (MONET) journal, Vol. 11, No. 6, pp. 889-900, December 2006

P. Demestichas, G. Dimitrakopoulos, J. Strassner, D. Bourse, “Introducing reconfigurability and cognitive networks concepts in the wireless world: research achievements and challenges”, IEEE Vehicular Technology Mag., Vol. 1, No. 2, pp. 33-39, June 2006

P. Demestichas, D. Boscovic, V. Stavroulaki, A. Lee, J. Strassner, “m@ANGEL: autonomic management platform for seamless wireless cognitive connectivity”, IEEE Commun. Mag., Vol. 44, No.6, pp. 118-127, June 2006

G. Kambourakis, A. Rouskas, S. Gritzalis and D. Geniatakis, “Support of Subscribers’ Certificates in a Hybrid WLAN-3G Environment”, Elsevier Computer Networks (COMNET), vol. 50, issue 11, pp. 1843-1859, Aug. 2006.

G. Dimitrakopoulos, K. Moessner, C. Kloeck, D. Grandblaise, S. Gault, O.Sallent, K.Tsagkaris, P.Demestichas, “Adaptive resource management platform for reconfigurable networks”, Mobile Networks and Applications (MONET) journal, Vol. 11, No. 6, pp. 779-811, December 2006

P. Demestichas, K. Tsagkaris, M. Theologou, “Interference level configuration in CDMA-based cellular networks”, Soft Computing Journal, Vol. 9, Issue 2, pp. 68-80, February 2005

K. Tsagkaris, P. Demestichas, A. Vasilakos, M. Theologou, “Power control in CDMA networks based on soft computing methods”, Soft Computing Journal, Vol. 9, Issue 2, pp. 81-87, February 2005

G. Kormentzas, I. Maglogiannis, D. Vassis, D. Vergados and A. Rouskas,  “A Modeling and Simulation Framework for Compound Medical Applications in Regional Healthcare Networks”, accepted for publication in International Journal of Electronic Healthcare  (IJEH), InderScience Publishers, Vol. 1, No. 4, 2005.

G. Kambourakis, I. Maglogiannis, and A. Rouskas, “PKI-based Secure Mobile Access to Electronic Health Services and Data”, Technology and Health Care, IOS Press, 13, pp. 511–526, 2005.

D. Vassis, G. Kormentzas, A. Rouskas, and I. Maglogiannis, “The IEEE 802.11g Standard for High Data Rate WLANs”, IEEE Network, pp. 21-26, May/June 2005.

A.N. Rouskas, and D.N. Skoutas, “Management of Channelization Codes at the Forward Link of WCDMA”, IEEE Communication Letters, Vol. 9, No. 8, August 2005.

A. Oikonomou, P. Demestichas, G. Kountourakis, M. Theologou, “Management of the power control operation in HiperLAN2 networks”, Soft Computing Journal, Vol. 9, Issue 2, pp. 128-142, February 2005

P. Demestichas, V. Stavroulaki, V. Tountopoulos, M. Theologou, N. Mitrou, “Service provider oriented management systems over open cellular network infrastructures”, Journal of Systems and Software, Vol. 69, pp. 1-14, 2004

P. Demestichas, V. Stavroulaki, “Issues in introducing resource brokerage functionality in B3G, composite radio, environments”, IEEE Wireless Commun. Mag., Vol. 11, No. 10, pp. 32-40, October 2004

P. Demestichas, G. Vivier, K. El-Khazen, M. Theologou, “Evolution in wireless systems management concepts: from composite radio to reconfigurability”, IEEE Commun. Mag., Vol. 42, No. 5, pp. 90-98, May 2004

M. Kazantzakis, I. Koukoutsidis, P. Demestichas, M. Theologou, “Probability criterion paging area planning in future mobile communications systems”, Computer Communications Journal, Vol. 27, No. 7, pp. 581-588, May 2004

K. Tsagkaris, P. Demestichas, M. Theologou, “Location and service-aware downlink transmission power allocation in WCDMA-based cellular networks”, Wireless Personal Communications Journal, Vol. 30, No. 2-4 , pp. 167-181, 2004

K. Moessner, P. Leaves, D. Grandblaise, F. Capar, E. Mohyeldin, P. Demestichas, G. Dimitrakopoulos, J. Luo, R. Tafazolli, “Reconfiguration techniques to enhance network efficiency”, Frequenz Journal, vol.58, pp.132-135, May-June 2004

G. Kambourakis, A. Rouskasand S. Gritzalis, “Performance Evaluation of Public Key Based Authentication in Future Mobile Communication Systems”, in EURASIP Journal on Wireless Communications and Networking, (JWCN), Vol. 1, Issue 1, pp. 184-197, Hindawi Publishing Corporation, August, 2004.

G. Kambourakis, A. Rouskasand S. Gritzalis, “Experimental Analysis of an SSL-based AKA mechanism in 3G-and-beyond Wireless Networks”, Kluwer Wireless Personal Communications (WPC), special issue on Security for Next Generation Communications, Vol. 29, Issue 3-4, pp. 303-321, June 2004.

G. Kambourakis, A. Rouskas, G. Kormentzas and S. Gritzalis, “Advanced SSL/TLS-based authentication for secure WLAN-3G interworking”, IEE Proceedings Communications, vol. 151, issue 5, pp 501-506, Oct. 2004.

D. Kouis, P. Demestichas, V. Stavroulaki, G. Koundourakis, N. Koutsouris, L. Papadopoulou, N. Mitrou, “A system for enhanced network management towards jointly exploiting WLANs and other wireless network infrastructures”, IEE Proceedings in Communications Journal, Vol. 151, No. 5, pp. 514-520, October 2004

A.N. Rouskas, D. N. Skoutas, G. T. Kormentzas and D. D. Vergados, “Code Reservation Schemes at the Forward Link in WCDMA”, Elsevier Computer Communications, Vol. 27/9, pp. 792-800, 2004.

A. Oikonomou, P. Demestichas, M. Theologou, “Evaluation of management functionality for the power control operation of WLAN systems”, Computer Communications Journal, Vol. 27, No. 16, pp. 1670-1678, October 2004

V. Lawrence, N. Zervos, T. Zahariadis, A. Meliones, ‘Digital Gateways for Multimedia Home Networks’, Telecommunication Systems (TELS), Kluwer Academic Publishers, 23(3/4):335-349, July/August 2003.

P.Demestichas, V.Stavroulaki, L.Papadopoulou, A.Vasilakos, M.Theologou, “Service configuration and traffic distribution in composite radio environments”, IEEE Transactions on Systems, Man and Cybernetics Journal, vol. 33, No. 4, pp. 69-81, November 2003

P.Demestichas, N.Koutsouris, G.Koundourakis, KTsagkaris, A.Oikonomou, V.Stavroulaki, L.Papadopoulou, M.Theologou, G.Vivier, K.El-Khazen, “Management of networks and services in a composite radio context”, IEEE Wireless Commun. Mag., Vol. 10, No. 4, pp. 44-51, August 2003

P.Demestichas, K.Tsagkaris, E.Tzifa, M.Theologou, “Uplink transmission power allocation in CDMA-based cellular networks”, IEE Electronic Letters Journal, Vol. 39, No. 1, pp. 147-148, 2003

P.Demestichas, E.Tzifa, M.Theologou, M. Anagnostou, “Interference oriented carrier assignment in wireless communications”, IEEE Communications Letters Journal, Vol. 7, No. 1, pp. 7-9, 2003

P.Demestichas, A.Oikonomou, G.Vivier, M.Theologou, “Management of wireless home networking technologies in the context of composite radio environments”, ACM Mobile Computing and Communications Review Journal, Vol. 7, No. 2, pp. 33-44, April 2003

M.Louta, P.Demestichas, E.Loutas, S.Kraounakis, M.Theologou, M.Anagnostou, “Design of future broadband fixed wireless access systems”, Wireless Personal Communications Journal, Vol. 27, No. 1, pp. 57-88, October 2003

I.Koukoutsidis, P.Demestichas, M.Theologou, “A learning strategy for paging in mobile environments”, Wireless Communications and Mobile Computing Journal, Vol. 3, Issue 8, pp. 975-985, December 2003

C.Sarantinopoulos, D.Karagiannis, K.Peppas, P.Demestichas, E.Tzifa, V.Demesticha, M.Theologou, “Design and control of the interconnecting network of the access segment of future mobile communications systems”, Computer Communications Journal, Vol. 26, No. 6, pp. 489-497, April 2003

C.Konstantinopoulou, K.Koutsopoulos, G.Lyberopoulos, P.Demestichas, M.Theologou, “Radio resource management schemes for combined GSM/GPRS mobile systems”, Wireless Communications and Mobile Computing Journal, Vol. 3, Issue 3, pp. 357-384, May 2003

P. Demestichas, G. Vivier, G. Martinez, L. Papadopoulou, V. Stavroulaki, F. Galliano, M. Theologou, “Wireless beyond 3G: managing services and network resources”, IEEE Computer, Vol. 35, No. 8, pp. 96-98, August 2002

P. Demestichas, G. Kotsakis, E. Tzifa, V. Demesticha, M. Anagnostou, M. Theologou, “Power allocation in the context of dimensioning the air-interface of third-generation W-CDMA-based cellular systems”, International Journal of Communication Systems, Vol. 15, pp. 375-400, July 2002

M. Saltouros, A. Taskaris, P. Demestichas, M. Theologou, A. Vasilakos, “Network resource brokerage by means of distributed agent-based systems encompassing reinforcement learning techniques”, Computer Communications Journal, Vol. 25, ??. 6, pp. 1415-1428, October 2002

M. Louta, P. Demestichas, E. Tzifa, E. Loutas, M. Anagnostou, “Retailer selection in future open competitive communications environments”, Computer Communications Journal, Vol. 25, ??. 7, pp. 662-675, May 2002

E. Tzifa, P. Demestichas, N. Liossis, N. Polydorou, M. Anagnostou, “Introduction of accounting capabilities in future service architectures”, Journal of Systems and Software, Vol. 64, No. 2, pp. 115-129, November 2002

S. Kotrotsos, G. Kotsakis, P. Demestichas, E. Tzifa, V. Demesticha, M. Anagnostou, “Formulation and computationally efficient algorithms for an interference-oriented version of the frequency assignment problem”, Wireless Personal Communications Journl, Vol. 18, pp. 289-317, 2001

P. Demestichas, M. Louta, E. Tzifa, V. Demesticha, M. Theologou, “Design of the ATM-based interconnecting network of the access segment of future cellular communications systems”, International Journal of Communication Systems, Vol. 14, pp. 147-170, 2001

P. Demestichas, E. Tzifa, M. Louta, N. Liossis, A. Kaltabani, M. Anagnostou, “Personal mobility support in future service architectures”, International Journal of Communication Systems, Vol. 14, pp. 837-856, 2001

M. Kazantzakis, P. Demestichas, V. Demesticha, E. Tzifa, J. Kazantzakis, “Paging area planning in future cellular systems”, European Transactions on Telecommunications Journal, Vol. 12, No. 6, pp. 501-510, November-December 2001

A. Meliones, Α. Karidis, ‘Distributed High-End Audio-Visual Content Creation: An Experience Report’, Computer Supported Cooperative Work (CSCW), Kluwer Academic Publishers, 10(3/4):373-386, January 2001.

Y. Manolessos, G. Prezerakos, A. Meliones, M. Theologou, ‘A TQM-based Approach to QoS Management’, Journal of Network and Systems Management (JNSM), Kluwer Academic/Plenum Publishers, 8(2):191-218, June 2000.

P. Demestichas, V. Demesticha, E. Tzifa, M. Kazantzakis, M. Anagnostou, “Efficient location and paging area planning in future cellular systems”, Wireless Personal Communications Journal, Vol. 12, pp. 83-109, 2000

P. Demestichas, N. Georgantas, E. Tzifa, V. Demesticha, M. Striki, M. Kilanioti, M. Theologou, “Computationally efficient algorithms for location area planning in future cellular systems”, Computer Communications Journal, Vol. 23, pp. 1263-1280, July 2000

A.N. Rouskas, and M.E. Anagnostou, “Improving a Set of Sequential Heuristics for the Channel Allocation Problem”, Kluwer International Journal of Wireless Information Networks, Vol. 7, No. 2, pp. 105-113, April 2000.