Paschalis Sofotasios

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Dr. Paschalis C. Sofotasios

Paschalis C. Sofotasios was born in Volos, Thessaly, Greece. He received the Master of Engineering degree from Newcastle University, the Master of Science degree from the University of Surrey and the Doctor of Philosophy degree from the University of Leeds. His Master's studies were funded by a scholarship from the Engineering and Physical Sciences Research Council, (EPSRC) and his Doctoral studies were sponsored by a Collaborative Awards in Science and Engineering (CASE) award from EPSRC and Pace plc.

He has held positions at the University of Leeds, the University of California Los Angeles (UCLA), CORES Lab, Aristotle University of Thessaloniki, Tampere University of Technology and Khalifa University of Science and Technology, where he is currently an Assistant Professor in the Department of Electrical and Computer Engineering.

His research interests are in the areas of Communication Theory, Cooperative Communications, Channel Characterization and Modeling, PHY Layer Security, Hardware Constrained Communications, Wireless Power Transfer, Optical Wireless Communications, Smart Grid as well as the Theory and Applications of Statistics and Special Functions.

Dr. Sofotasios serves as a regular reviewer for several international journals and has been a member of the technical program committee of numerous IEEE conferences. He is currently an Editor for the IEEE Communications Letters and he received the Exemplary Reviewer Award from the IEEE Communications Letters in 2012 and from the IEEE Transactions on Communications in 2015 and 2016. Dr. Sofotasios is a co-recipient of the Best Paper Award in ICUFN 2013 and a Senior Member IEEE.


Education

  • Ph.D. in Electronic and Electrical Engineering, University of Leeds, United Kingdom
    • Thesis: On Special Functions and Composite Statistical Distributions and their Applications in Digital Communications over Fading Channels
  • M.Sc. in Satellite Communications Engineering, University of Surrey, United Kingdom
    • Thesis: A Multi-Vectorial Electromagnetic Method for Radio Coverage in Mobile Communications
  • M.Eng. in Electronic and Communications Engineering, Newcastle University, United Kingdom
    • B.Eng. Thesis: Performance Analysis of Hand-over Techniques for Low-Earth-Orbit (LEO) Satellite Communications
    • M.Eng. Thesis: Numerical Analysis and Modelling of Optically Controlled Microwave Circuits


Publications

Journal Articles
  • S. Ki Yoo, N. Bhargav, S. L. Cotton, P. C. Sofotasios, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "The κ-μ / Inverse Gamma and η-μ / Inverse Gamma Composite Fading Models: Fundamental Statistics and Empirical Validation," IEEE Transactions on Communications, Accepted for Publication
  • S. E. Trevlakis, A-A. A. Boulogeorgos, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, "Optical Wireless Cochlear Implants," OSA Biomedical Optics Express, Accepted for Publication
  • N. Bhargav, C. R. Nogueira da Silva, S. Cotton, P. C. Sofotasios, M. D. Yacoub, "Double Shadowing the Rician Fading Model," IEEE Wireless Communications Letters, Accepted for Publication
  • B. Selim, S. Muhaidat, P. C. Sofotasios, A. Al-Dweik, B. S. Sharif, T. Stouraitis, "Radio Frequency Front-End Impairments in Non-Orthogonal Multiple Access Systems," IEEE Vehicular Technology Magazine, Accepted for Publication
  • O. S. Badarneh, D. B. da Costa, P. C. Sofotasios, S. Muhaidat, S. Cotton, "On the sum of Fisher-Snedecor F variates and its application to maximal-ratio combining," IEEE Wireless Communications Letters, Accepted for Publication
  • P. C. Sofotasios, Yu. A. Brychkov, "On Derivatives of Hypergeometric Functions and Classical Polynomials with Respect to Parameters," Taylor and Francis Integral Transforms and Special Functions, vol. 29, no. 11. pp. 852-865, Nov. 2018
  • S. S. Bawazir, P. C. Sofotasios, S. Muhaidat, Y. Al-Hammadi, G. K. Karagiannidis, "Multiple Access for Visible Light Communications: Research Challenges and Future Trends," IEEE Access, Accepted for Publication vol. 6, pp. 26167-26174, Jun. 2018
  • H. Marshoud, P. C. Sofotasios, S. Muhaidat, B. S. Sharif, G. K. Karagiannidis, "Optical Adaptive Precoding for Visible Light Communications," IEEE Access, vol. 6, pp. 22121 - 22130, May. 2018
  • B. Selim, S. Muhaidat, P. C. Sofotasios, B. S. Sharif, T. Stouraitis, G. K. Karagiannidis, N. Al-Dhahir, "Performance Analysis of Non Orthogonal Multiple Access under I/Q Imbalance," IEEE Access, vol. 6, pp. 18453-18468, Apr. 2018
  • H. Marshoud, S. Muhaidat, P. C. Sofotasios, S. Hussain, M. A. Imran, B. S. Sharif, "Optical Non-Orthogonal Multiple Access for Visible Light Communication," IEEE Wireless Communications, vol. 25, no. 2, pp. 82-88, Apr. 2018
  • P. C. Sofotasios, M. K. Fikadu, S. Muhaidat, S. Freear, G. K. Karagiannidis, M. Valkama, "Relay Selection Based Full-duplex Cooperative Systems under Adaptive Transmission," IEEE Wireless Communications Letters, vol. 6, no. 5, pp. 602-605, Oct. 2017
  • H. Marshoud, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, "On the Performance of Visible Light Communications Systems with Non-Orthogonal Multiple Access," IEEE Transactions on Wireless Communications, vol. 16, no. 10, pp. 6350-6364, Oct. 2017
  • P. C. Sofotasios, A. Bagheri, T. A. Tsiftsis, S. Freear, A. Shahzadi, M. Valkama, "A Comprehensive Framework for Spectrum Sensing in Non-Linear and Generalized Fading Conditions," IEEE Transactions on Vehicular Technology, vol. 66, no. 10, pp. 8615-8631, Oct. 2017
  • S. Ki Yoo, S. L. Cotton, P. C. Sofotasios, M. Matthaiou, M. Valkama, G. K. Karagiannidis, " The Fisher-Snedecor F Distribution: A Simple and Accurate Composite Fading Model," IEEE Communications Letters, vol. 21, no. 7, pp. 1661-1664, Jul. 2017
  • P. C. Sofotasios, M. K. Fikadu, S. Muhaidat, Q. Cui, G. K. Karagiannidis, M. Valkama, "Full-Duplex Regenerative Relaying and Energy-Efficiency Optimization over Generalized Asymmetric Fading Channels," IEEE Transactions on Wireless Communications, vol. 16, no. 5, pp. 3232-3251, May 2017
  • S. Dikmese, Z. Ilyas, P. C. Sofotasios, M. Renfors, M. Valkama, "Sparse Frequency Domain Spectrum Sensing and Sharing Based on Cyclic Prefix Autocorrelation," IEEE Journal on Selected Areas in Communications, vol. 35, no. 1, pp. 159-172, Jan. 2017
  • S. Al Maeeni, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, M. Valkama, "Distributed Differential Modulation over Asymmetric Fading Channels," IEEE Signal Processing Letters, vol. 23, no. 12, pp. 1712−1716, Dec. 2016
  • A.-A. A. Boulogeorgos, P. C. Sofotasios, B. Selim, S. Muhaidat, G. K. Karagiannidis, M. Valkama, "Effects of RF Impairments in Communications over Cascaded Fading Channels," IEEE Transactions on Vehicular Technology, vol. 65, no. 11, pp. 8878−8894, Nov. 2016
  • A. Al Hammadi, O. Alhussein, P. C. Sofotasios, S. Muhaidat, M. Al-Qutayri, S. Al-Araji, G. K. Karagiannidis, J. Liang, "Unified Analysis of Cooperative Spectrum Sensing over Composite and Generalized Fading Channels," IEEE Transactions on Vehicular Technology, vol. 65, no. 9, pp. 6949−6961, Sep. 2016
  • S. Ki Yoo, S. Cotton, P. C. Sofotasios, S. Freear, "Shadowed Fading in Indoor Off-Body Communications Channels: A Statistical Characterization Using the κ − µ/gamma Composite Fading Model," IEEE Transactions on Wireless Communications, vol. 15, no. 8, pp. 5231−5244, Aug. 2016
  • M. K. Fikadu, P. C. Sofotasios, Q. Cui, M. Valkama, G. K. Karagiannidis, "Exact Error Analysis and Energy-Efficiency Optimization of Regenerative Relay Systems under Spatial Correlation," IEEE Transactions on Vehicular Technology, vol. 65, no. 7, pp. 4973−4992, Jul. 2016
  • M. K. Fikadu, P. C. Sofotasios, S. Muhaidat, Q. Cui, M. Valkama, G. K. Karagiannidis, "Error Rate and Power Allocation Analysis of Regenerative Networks over Generalized Fading Channels," IEEE Transactions on Communications, vol. 64, no. 4, pp. 1751−1768, Apr. 2016
  • P. C. Sofotasios, L. Mohjazi, S. Muhaidat, M. Al-Qutayri, G. K. Karagiannidis, "Energy Detection of Unknown Signals over Cascaded Fading Channels," IEEE Antennas and Wireless Propagation Letters, vol. 15, pp. 135−138, 2016
  • S. Dikmese, P. C. Sofotasios, M. Renfors, M. Valkama, "Subband Energy Based Reduced Complexity Spectrum Sensing under Noise Uncertainty and Frequency-Selective Spectral Characteristics," IEEE Transactions on Signal Processing, vol. 64, no. 1, pp. 131−145, Jan. 2016
  • P. C. Sofotasios, S. Muhaidat, M. Valkama, M. Ghogho, G. K. Karagiannidis, "Entropy and Channel Capacity under Optimum Power and Rate Adaptation over Generalized Fading Conditions," IEEE Signal Processing Letters, vol. 22, no. 11, pp. 2162 − 2166, Nov. 2015
  • P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, B. S. Sharif, "Solutions to Integrals Involving the Marcum Q−function and Applications," IEEE Signal Processing Letters, vol. 22, no. 10, pp. 1752 − 1756, Oct. 2015
  • T. A. Tsiftsis, P. C. Sofotasios, N. Papanikolaou, M. Loupis, "Deployment of a Wireless Sensor Network in Dispersed Renewable Energy Sources for Increasing Efficiency of Power Distribution Networks," Springer Journal of Modern Power Systems and Clean Energy, June 2015
  • S. Dikmese, P. C. Sofotasios, T. Ihalainen, M. Renfors, M. Valkama, "Efficient Energy Detection Methods for Spectrum Sensing under Non-Flat Spectral Characteristics," IEEE Journal on Selected Areas in Communications, vol. 33, no. 5, pp. 755 − 770, May 2015
  • K. Ho-Van, P. C. Sofotasios, G. C. Alexandropoulos, S. Freear, "Bit Error Rate of Underlay Decode-and-Forward Cognitive Networks with Best Relay Selection," IEEE/KICS Journal of Communications and Networks, vol. 17, no. 2, pp. 162 - 171, Apr. 2015
  • I. Diaz, L. R. Wilhelmsson, P. C. Sofotasios, Y. Miao, S. Tan, O. Edfors, V. Owall, "A New Approach to Sign-Bit Based Parameter Estimation in OFDM Receivers," Springer Circuit, Systems, and Signal Processing, Mar. 2015
  • J. F. Paris, P. C. Sofotasios, T. A. Tsiftsis, "Guest Editorial: Advances in Statistical Channel Modeling for Wireless Communications," Hindawi International Journal of Antennas and Propagation, Article ID 541619, 2 pages, 2015
  • P. C. Sofotasios, T. A. Tsiftsis, Yu. A. Brychkov, S. Freear, M. Valkama, G. K. Karagiannidis, "Analytic Expressions and Bounds for Special Functions and Applications in Communication Theory," IEEE Transactions on Information Theory, vol. 60, no. 12, pp. 7798 - 7823, Dec. 2014
  • A. Gokceoglu, Y. Zhou, M. Valkama, P. C. Sofotasios, "Multi-Channel Energy Detection under Phase Noise: Analysis and Mitigation," ACM/Springer Journal on Mobile Networks and Applications (MONET), vol. 19, no. 4, pp. 473 - 486, Aug. 2014
  • K. Ho-Van, P. C. Sofotasios, S. Freear, "Underlay Cooperative Cognitive Networks with Imperfect Nakagami-m Fading Channel Information and Strict Transmit Power Constraint: Interference Statistics and Outage Probability Analysis," IEEE/KICS Journal of Communications and Networks, vol. 16, no. 1, pp. 10 - 17, Feb. 2014
  • K. Ho-Van, P. C. Sofotasios, "Exact BER Analysis of Underlay Decode-and-Forward Multi-hop Cognitive Networks with Estimation Errors," IET Communications, vol. 7, no. 18, pp. 2122 - 2132, Dec. 2013
  • G. C. Alexandropoulos, P. C. Sofotasios, K. Ho-Van, S. Freear, "Symbol Error Probability of DF Relay Selection over Arbitrary Nakagami-m Fading Channels," Hindawi Journal of Engineering (Invited Paper), Article ID 325045, vol. 2013
  • A. Gokceoglu, Y. Zou, M. Valkama, P. C. Sofotasios, P. Mathecken, D. Cabric, "Mutual Information Analysis of OFDM Radio Link under Phase Noise, IQ Imbalance and Frequency-Selective Fading Channel," IEEE Transactions on Wireless Communications, vol. 12, no. 6, pp. 3048 - 3059, June 2013
  • P. C. Sofotasios, E. Rebeiz, L. Zhang, T. Tsiftsis, D. Cabric, S. Freear, "Energy Detection-Based Spectrum Sensing over κ-μ and κ-μ Extreme Fading Channels," IEEE Transactions on Vehicular Technology, vol. 62, no. 3, pp. 1031 - 1040, March 2013
  • G. C. Alexandropoulos, A. Papadogiannis, P. C. Sofotasios, "A Comparative Study of Relaying Schemes with Decode-and-Forward over Nakagami-m Fading Channels," Hindawi Journal of Computer Networks and Communications, (Invited Paper), Article ID 560528, vol. 2011


Conference Papers
  • P. D. Diamantoulakis, K. N. Pappi, Z. Ma, X. Lei, P. C. Sofotasios, G. K. Karagiannidis, "Airborne Radio Access Networks with Simultaneous Lightwave Information and Power Transfer (SLIPT)," in IEEE Global Communications Conference, (Globecom '18), Abu Dhabi, UAE, December 2018
  • R. Kishore, S. Gurugopinath, S. Muhaidat, P. C. Sofotasios, M. Dianati, N. Al-Dhahir, "Energy Efficiency Analysis of Collaborative Compressive Sensing for Cognitive Radio Networks," in IEEE Global Communications Conference, (Globecom '18), Abu Dhabi, UAE, December 2018
  • S. K. Yoo, S. Cotton, P. C. Sofotasios, S. Muhaidat, O. S. Badarneh, G. K. Karagiannidis, "Energy Detection-based Spectrum Sensing over Fisher - Snedecor $\mathcal{F}$ Fading Channels," in IEEE Global Communications Conference, (Globecom '18), Abu Dhabi, UAE, December 2018
  • J. M. Moualeu, P. C. Sofotasios, D. B. da Costa, W. Hamouda, U. S. Dias, S. Muhaidat, "Physical-Layer Security over Generalized SIMO Multipath Fading Channels," in IEEE International Symposium on Wireless Personal Multimedia Communications, (WPMC '18), Chiang Rai, Thailand, November 2018
  • O. S. Badarneh, S. Muhaidat, P. C. Sofotasios, S. Cotton, K. Rabie, D. B. da Costa, "The $N*$Fisher-Snedecor $F$ Cascaded Fading Model," IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, (WiMob '18), Limassol, Cyprus, October 2018
  • O. S. Badarneh, P. C. Sofotasios, S. Muhaidat, S. Cotton, K. Rabie, N. Al-Dhahir, "On the Secrecy Capacity of Fisher - Snedecor $F$ Fading Channels," IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, (WiMob '18), Limassol, Cyprus, October 2018
  • B. Selim, S. Muhaidat, P. C. Sofotasios, B. S. Sharif, T. Stouraitis, G. K. Karagiannidis, N. Al-Dhahir, "Performance Analysis of Single Carrier Coherent and Noncoherent Modulation under I/Q Imbalance," in IEEE Vehicular Technology Conference (VTC - Spring '18), Porto, Portugal, June 2018
  • H. Marshoud, S. Muhaidat, P. C. Sofotasios, M. A. Imran, B. S. Sharif, G. K. Karagiannidis, "Optical Asymmetric Modulation for VLC Systems," in IEEE Vehicular Technology Conference (VTC - Spring '18), Porto, Portugal, June 2018 (Invited Paper)
  • P. C. Sofotasios, S. K. Yoo, S. Muhaidat, S. Cotton, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "Ergodic Capacity Analysis of Wireless Transmission over Generalized Multipath/Shadowing Channels," in IEEE Vehicular Technology Conference (VTC - Spring '18), Porto, Portugal, June 2018
  • B. Selim, S. Muhaidat, P. C. Sofotasios, B. S. Sharif, T. Stouraitis, G. K. Karagiannidis, N. Al-Dhahir, "Outage Probability of Single Carrier NOMA Systems under I/Q Imbalances," in IEEE Wireless Communications and Networking Conference (WCNC '18), Barcelona, Spain, Apr. 2018
  • P. C. Sofotasios, S. K. Yoo, S. Muhaidat, S. Cotton, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "Error Analysis of Wireless Transmission over Generalized Multipath/Shadowing Channels," in IEEE Wireless Communications and Networking Conference (WCNC '18), Barcelona, Spain, Apr. 2018
  • S. Al Maeeni, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, "Analysis of Differentially Modulated Cooperative Communications over Asymmetric Fading Channels," in IEEE International Conference on Advanced Communication Technologies and Networking (CommNet '18), Marrakech, Morocco, Apr. 2018 (Invited Paper)
  • B. Selim, S. Muhaidat, P. C. Sofotasios, B. S. Sharif, T. Stouraitis, G. K. Karagiannidis, N. Al-Dhahir, "Outage Probability of Multi-Carrier NOMA Systems under Joint I/Q Imbalance," in IEEE International Conference on Advanced Communication Technologies and Networking (CommNet '18), Marrakech, Morocco, Apr. 2018 (Invited Paper)
  • P. C. Sofotasios, S. K. Yoo, N. Bhargav, S. Muhaidat, S. Cotton, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "Capacity Analysis Under Generalized Composite Fading Conditions," in IEEE International Conference on Advanced Communication Technologies and Networking (CommNet '18), Marrakech, Morocco, Apr. 2018 (Invited Paper)
  • O. Raeesi, A. Gokceoglu, P. C. Sofotasios, M. Renfors, M. Valkama, "Modeling and Estimation of Massive MIMO Channel Non-Reciprocity: Sparsity-aided Approach," in Twenty Fifth European Signal Processing Conference, (EUSIPCO '17), Kos, Greece, Aug. 2017
  • H. Marshoud, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, B. S. Sharif, "Error Performance of NOMA VLC Systems," in IEEE International Conference on Communications, (ICC '17), Paris, France, May 2017
  • B. Selim, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, B. S. Sharif, "Performance of Differential Modulation Under RF Impairments," in IEEE International Conference on Communications, (ICC '17), Paris, France, May 2017
  • H. Marshoud, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, B. S. Sharif, "BER Analysis of NOMA-based VLC Systems," in UAE Graduate Students Research Conference, (GSRC `17), Abu Dhabi, UAE, Mar. 2017
  • B. Selim, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, "The Effects of I/Q Imbalance on Wireless Communications: A Survey," in IEEE International Midwest Symposium on Circuits and Systems, (MWSCAS '16), Abu Dhabi, UAE, Oct. 2016
  • H. Marshoud, P. C. Sofotasios, S. Muhaidat, G. K. Karagiannidis, "Multi-user Techniques in Visible Light Communications: A Survey," in Advanced Communication Systems and Information Security, (ACOSIS '16), Marrakesh, Morocco, Oct. 2016
  • A−A. A. Boulogeorgos, P. C. Sofotasios, B. Selim, S. Muhaidat, G. K. Karagiannidis, M. Valkama, "Outage Probability under I/Q Imbalance and Cascaded Fading Effects," in IEEE International Conference on Telecommunications, (ICT '16), Thessaloniki, Greece, May 2016
  • S. Al Maeeni, P. C. Sofotasios, S. Muhaidat, M. Valkama, G. K. Karagiannidis, "Error Analysis of Differentially Modulated Cooperative Systems under Generalized Fading," in IEEE International Conference on Telecommunications, (ICT '16), Thessaloniki, Greece, May 2016 (Best Paper Award Runner-Up)
  • M. Fikadu, P. C. Sofotasios, S. Muhaidat, Q. Cui, M. Valkama, "SER of M−QAM Decode-and-Forward Multi-Relay Systems under Generalized Fading Conditions," in IEEE International Conference on Telecommunications, (ICT '16), Thessaloniki, Greece, May 2016
  • S. Dikmese, Z. Ilyas, P. C. Sofotasios, M. Renfors, M. Valkama, "Novel Frequency Domain Cyclic Prefix Autocorrelation Based Compressive Spectrum Sensing For Cognitive Radio," in IEEE Vehicular Technology Conference, (VTC-Spring '16), Nanjing, China, May 2016
  • A. Bagheri, P. C. Sofotasios, T. A. Tsiftsis, K. Ho-Van, M. I. Loupis, S. Freear, M. Valkama, "Energy Detection Based Spectrum Sensing Over Enriched Multipath Fading Channels," in IEEE Wireless Communications and Networking Conference, (WCNC '16), Doha, Qatar, Apr. 2016
  • M. K. Fikadu, P. C. Sofotasios, M. Valkama, Q. Cui, S. Muhaidat, G. K. Karagiannidis, "Outage Probability Analysis of Full-Duplex Regenerative Relaying over Generalized Asymmetric Fading Channels," in IEEE Global Communications Conference, (Globecom '15), San Diego, CA, USA, Dec. 2015
  • S. Dikmese, P. C. Sofotasios, M. Renfors, M. Valkama, M. Ghogho, "Analysis of Noise Uncertanity and Frequency Selectivity Effects in Wideband Multimode Spectrum Sensing," in IEEE Global Communications Conference, (Globecom '15), San Diego, CA, USA, Dec. 2015
  • S. L. Cotton, S. Ki Yoo, P. C. Sofotasios, "Characterizing Fading in Wearable Communications Channels Using Composite Models," in IEEE Asilomar Conference on Signals, Systems, and Computers, (Asilomar '15), Pacific Grove, CA, USA, Nov. 2015
  • M. K. Fikadu, P. C. Sofotasios, M. Valkama, S. Muhaidat, Q. Cui, G. K. Karagiannidis, "Outage Probability Analysis of Dual-hop Full-Duplex Decode-and-Forward Relaying over Generalized Multipath Fading Conditions," in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, (WiMob '15), Abu Dhabi, UAE, Oct. 2015
  • O. Alhussein, A. Al Hammadi, P. C. Sofotasios, S. Muhaidat, J. Liang, M. Al-Qutayri, G. K. Karagiannidis, "Performance Analysis of Energy Detection over Mixture Gamma based Fading Channels with Diversity Reception," in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, (WiMob '15), Abu Dhabi, UAE, Oct. 2015
  • M. K. Fikadu, P. C. Sofotasios, M. Valkama, Q. Cui, S. Muhaidat, G. K. Karagiannidis, "Analytic Symbol Error Rate Evaluation of M−PSK Based Regenerative Cooperative Networks Over Generalized Fading Channels," in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications, (WiMob '15), Abu Dhabi, UAE, Oct. 2015
  • K. Ho-Van, P. C. Sofotasios, V. Que Son, L. Thanh Tra, P. Hong Lien, "Analysis of Cognitive Cooperative Networks with Best Relay Selection and Diversity Reception," in IEEE International Conference on Advanced Technologies for Communications, (ATC '15), HoChiMinh City, Vietnam, Oct. 2015
  • A.–A. A. Boulogeorgos, P. C. Sofotasios, S. Muhaidat, M. Valkama, G. K. Karagiannidis, "The Effects of RF Impairments in Vehicle-to-Vehicle Communications," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • S. Ki Yoo, S. L. Cotton, P. C. Sofotasios, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "The κ − µ / Inverse Gamma Fading Model," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • A. Bagheri, P. C. Sofotasios, T. A. Tsiftsis, A. Shahzadi, S. Freear, M. Valkama, "Area under ROC Curve of Energy Detection over Generalized Fading Channels," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • L. Mohjazi, D. Dawoud, P. C. Sofotasios, S. Muhaidat, M. Dianati, M. Valkama, G. K. Karagiannidis, "Unified Analysis of Cooperative Spectrum Sensing over Generalized Multipath Fading Channels," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • S. Ki Yoo, P. C. Sofotasios, S. L. Cotton, M. Matthaiou, M. Valkama, G. K. Karagiannidis, "The η − µ / Inverse Gamma Composite Fading Model," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • M. K. Fikadu, P. C. Sofotasios, M. Valkama, Q. Cui, G. K. Karagiannidis, "Energy-Efficiency Analysis of Regenerative Cooperative Systems Under Spatial Correlation," in IEEE International Symposium on Personal Indoor and Mobile Radio Communications, (PIMRC '15), Hong Kong, Aug/Sep. 2015
  • A. Bagheri, P. C. Sofotasios, T.A. Tsiftsis, A. Shahzadi, M. Valkama, "AUC Study of Energy Detection Based Spectrum Sensing over η−µ and α−µ Fading Channels," in IEEE International Conference on Communications, (ICC '15), London, UK, June 2015
  • S. Dikmese, Z. Zheng, P. C. Sofotasios, M. Renfors, M. Valkama, "Efficient Wireless Microphone Sensing: Subband Energy Detector Principle and Measured Performance," in IEEE International Conference on Communications, (ICC '15), London, UK, June 2015
  • A. Bagheri, P. C. Sofotasios, T. A. Tsiftsis, A. Shahzadi, M. Valkama, "Spectrum Sensing in Generalized Multipath Fading Conditions Using Square-Law Combining," in IEEE International Conference on Communications, (ICC '15), London, UK, June 2015
  • P. C. Sofotasios, M. K. Fikadu, K. Ho-Van, M. Valkama, G. K. Karagiannidis, "The Area Under a Receiver Operating Characteristic Curve over Enriched Multipath Fading Conditions," in IEEE Global Communications Conference, (Globecom '14), Austin, TX, USA, Dec. 2014
  • M. K. Fikadu, P. C. Sofotasios, M. Valkama, Q. Cui, "Analytic Performance Evaluation of M-QAM Based Decode-and-Forward Relay Networks over Enriched Multipath Fading Channels," in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob '14), Larnaca, Cyprus, Oct. 2014
  • P. C. Sofotasios, M. Valkama, Yu. A. Brychkov, T. A. Tsiftsis, S. Freear, G. K. Karagiannidis, "Analytic Solutions to a Marcum Q-Function-Based Integral and Application in Energy Detection of Unknown Signals over Multipath Fading Channels," in Ninth International Conference on Cognitive Radio Oriented Wireless Networks (CROWNCOM ‘14), Oulu, Finland, June 2014
  • S. Dikmese, P. C. Sofotasios, M. Renfors, M. Valkama, "Maximum-Minimum Energy Based Spectrum Sensing under Frequency Selectivity for Cognitive Radios," in Ninth International Conference on Cognitive Radio Oriented Wireless Networks (CROWNCOM ‘14), Oulu, Finland, June 2014
  • K. Ho-Van, P. C. Sofotasios, S. V. Que, T. D. Anh, T. P. Quang, L. P. Hong, "Analytic Performance Evaluation of Underlay Relay Cognitive Networks with Channel Estimation Errors," in IEEE International Conference on Advanced Technologies for Communications (ATC '13), HoChiMinh City, Vietnam, Oct. 2013
  • P. C. Sofotasios, M. Fikadu, K. Ho-Van, M. Valkama, "Energy Detection Sensing of Unknown Signals over Weibull Fading Channels," in IEEE International Conference on Advanced Technologies for Communications (ATC '13), HoChiMinh City, Vietnam, Oct. 2013
  • P. C. Sofotasios, K. Ho-Van, T. D. Anh, H. D. Quoc, "Analytic Results for Efficient Computation of the Nuttall−Q and Incomplete Toronto Functions," in IEEE International Conference on Advanced Technologies for Communications (ATC '13), HoChiMinh City, Vietnam, Oct. 2013
  • M. K. Fikadu, P. C. Sofotasios, Q. Cui, M. Valkama, "Energy-Optimized Cooperative Relay Network over Nakagami-m Fading Channels," in IEEE International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob '13), Lyon, France, Oct. 2013
  • P. C. Sofotasios, T. A. Tsiftsis, K. Ho-Van, S. Freear, L. R. Wilhelmsson, M. Valkama, "The κ-μ/IG Composite Statistical Distribution in RF and FSO Wireless Channels," in IEEE Vehicular Technology Conference (VTC '13 - Fall), Las Vegas, USA, Sep. 2013
  • K. Ho-Van, P. C. Sofotasios, "Outage Behaviour of Cooperative Underlay Cognitive Networks with Inaccurate Channel Estimation," in IEEE International Conference on Ubiquitous and Future Networks (ICUFN '13), Da Nang, Vietnam, July 2013
  • K. Ho-Van, P. C. Sofotasios, "Bit Error Rate of Underlay Multi-hop Cognitive Networks in the Presence of Multipath Fading," in IEEE International Conference on Ubiquitous and Future Networks (ICUFN '13), Da Nang, Vietnam, July 2013 (Best Paper Award)
  • P. C. Sofotasios, T. A. Tsiftsis, M. Ghogho, L. R. Wilhelmsson, M.Valkama, "The η-μ/IG Distribution: A Novel Physical Multipath /Shadowing Fading Model," in IEEE International Conference on Communications (ICC' 13), Budapest, Hungary, June 2013
  • P. C. Sofotasios, S. Freear, "The α-κ-μ/gamma Composite Distribution: A Generalized Non-Linear Multipath/Shadowing Fading Model," in Eighth IEEE India International Conference (INDICON '11), Hyderabad, India, Dec. 2011
  • P. C. Sofotasios, S. Freear, "Analytic expressions for the Rice Ie-Function and the Incomplete Lipschitz-Hankel Integrals," in Eighth IEEE India International Conference (INDICON '11), Hyderabad, India, Dec. 2011
  • P. C. Sofotasios, S. Freear, "The α-κ-μ Extreme Distribution: Characterizing Non Linear Severe Fading Conditions," in Australasian Telecommunication Networks and Applications Conference (ATNAC '11), Melbourne, Australia, Nov. 2011
  • P. C. Sofotasios, S. Freear, "Upper and Lower Bounds for the Rice Ie-function," in Australasian Telecommunication Networks and Applications Conference (ATNAC '11), Melbourne, Australia, Nov. 2011
  • P. C. Sofotasios, S. Freear, "On the η-μ/gamma and the λ-μ/gamma Multipath/Shadowing Distributions", in Australasian Telecommunication Networks and Applications Conference (ATNAC '11), Melbourne, Australia, Nov. 2011
  • P. C. Sofotasios, S. Freear, "New Analytic Results for the Incomplete Toronto Function and Incomplete Lipschitz-Hankel Integrals," in IEEE International Microwave and Optoelectronics Conference (IMOC '11), Natal, Brazil, Oct. 2011
  • P. C. Sofotasios, S. Freear, "On the κ-μ/gamma Composite Distribution: A Generalized Multipath/Shadowing Fading Model," in IEEE International Microwave and Optoelectronics Conference (IMOC '11), Natal, Brazil, Oct. 2011
  • S. Harput, P. C. Sofotasios, S. Freear, "A Composite Statistical Model For Ultrasound Applications," in IEEE International Ultrasonics Symposium (IUS '11), Orlando, FL, USA, Oct. 2011
  • P. C. Sofotasios, S. Freear, "Simple and Accurate Approximations for the Two Dimensional Gaussian Q-Function," in IEEE Vehicular Technology Conference (VTC-Spring '11), Budapest, Hungary, May 2011
  • P. C. Sofotasios, S. Freear, "The κ-μ Extreme/gamma Distribution: A Physical Composite Fading Model," in IEEE Wireless Communications and Networking Conference (WCNC '11), Cancun, Mexico, Mar. 2011
  • P. C. Sofotasios, S. Freear, "Novel Expressions for the Marcum and One Dimensional Q-Functions," in Seventh International Symposium on Wireless Communication Systems (7th ISWCS '10) , York, UK, Sep. 2010
  • P. C. Sofotasios, S. Freear, "The κ-μ/gamma Composite Fading Model," in IEEE International Conference in Wireless Information Technology and Systems (ICWITS '10), Honolulu, HI, USA, Aug/Sep. 2010
  • P. C. Sofotasios, S. Freear, "The η-μ/gamma Composite Fading Model," in IEEE International Conference in Wireless Information Technology and Systems (ICWITS '10), Honolulu, HI, USA, Aug/Sep. 2010
  • P. C. Sofotasios, S. Freear, "Novel Expressions for the One and Two Dimensional Gaussian Q-Functions," in IEEE International Conference in Wireless Information Technology and Systems (ICWITS '10), Honolulu, HI, USA, Aug/Sep. 2010
  • P. C. Sofotasios, S. Freear, "A Novel Representation for the Nuttall Q-Function," in IEEE International Conference in Wireless Information Technology and Systems (ICWITS '10), Honolulu, HI, USA, Aug/Sep. 2010


Patents

  • P. C. Sofotasios, S. Freear, "Data Receiver with Improved Response to Long and Short Term Fading". GB/1004946, Filed: 03-2010, Assigned: 03-2011
  • P. C. Sofotasios, S. Freear, "Data Receiver with Improved Response to Long and Short Term Data Signal Fading". EP/2369801, Filed: 03-2010, Assigned: 03-2011
  • P. C. Sofotasios, S. Freear, "Data Receiver with Improved Response to Long and Short Term Fading". US/20120014481, Filed: 03-2010, Assigned: 01-2012

Contact Information

e-mail: p.sofotasios@ieee.org