Multihop communications with fixed-gain relays over generalized fading channels. - George K. Karagiannidis; Dimitris A. Zogas; Nikos C. Sagias; Theodoros A. Tsiftsis; P. Takis Mathiopoulos (GLOBECOM, 2004)

Selection diversity for wireless communications with non-identical Weibull statistics. - Nikos C. Sagias; George K. Karagiannidis; Dimitris A. Zogas; P. Takis Mathiopoulos (GLOBECOM, 2004)

Dual selection diversity over correlated Weibull fading channels. - Nikos C. Sagias; George K. Karagiannidis; Dimitris A. Zogas; P. Takis Mathiopoulos; George S. Tombras; Stavros A. Kotsopoulos (ICC, 2004)

Second order statistics and channel spectral efficiency for selection diversity receivers in Weibull fading. - Nikos C. Sagias; George K. Karagiannidis; Dimitris A. Zogas; Panayiotis Takis Mathiopoulos; George S. Tombras; Fotini-Niovi Pavlidou (PIMRC, 2004)

Average channel capacity for generalized-selection combining RAKE receivers. - Nikos C. Sagias; Panagiotis Varzakas; George S. Tombras; George K. Karagiannidis (Eur. Trans. Telecommun., 2004)

Channel capacity and second-order statistics in Weibull fading. - Nikos C. Sagias; Dimitris A. Zogas; George K. Karagiannidis; George S. Tombras (IEEE Commun. Lett., 2004)

Performance analysis of dual selection diversity in correlated Weibull fading channels. - Nikos C. Sagias; George K. Karagiannidis; Dimitris A. Zogas; P. Takis Mathiopoulos; George S. Tombras (IEEE Trans. Commun., 2004)

Closed-form bounds for multihop relayed communications in Nakagami-m fading. - George K. Karagiannidis; Theodoros A. Tsiftsis; Ranjan K. Mallik; Nikos C. Sagias; Stavros A. Kotsopoulos (ICC, 2005)

Digital Communications over Generalized-K Fading Channels. - Petros S. Bithas; Nikolaos C. Sagias; P. Takis Mathiopoulos; George K. Karagiannidis; Athanasios A. Rontogiannis (ISWCS, 2005)

The N* Nakagami fading channel model. - George K. Karagiannidis; Nikos C. Sagias; P. Takis Mathiopoulos (ISWCS, 2005)

On the Distribution of the Sum of Generalized Gamma Variates and Applications to Satellite Digital Communications. - Nikolaos C. Sagias; P. Takis Mathiopoulos; Petros S. Bithas; George K. Karagiannidis (ISWCS, 2005)

Communication Theory Average output SNR of equal-gain diversity receivers over correlative Weibull fading channels. - Dimitris A. Zogas; Nikos C. Sagias; George S. Tombras; George K. Karagiannidis (Eur. Trans. Telecommun., 2005)

A closed-form upper-bound for the distribution of the weighted sum of Rayleigh variates. - George K. Karagiannidis; Theodoros A. Tsiftsis; Nikos C. Sagias (IEEE Commun. Lett., 2005)

Effects of carrier phase error on EGC receivers in correlated Nakagami-m fading. - Nikos C. Sagias; George K. Karagiannidis (IEEE Commun. Lett., 2005)

Switched diversity receivers over generalized gamma fading channels. - Nikos C. Sagias; P. Takis Mathiopoulos (IEEE Commun. Lett., 2005)

New results for the Shannon channel capacity in generalized fading channels. - Nikos C. Sagias; George S. Tombras; George K. Karagiannidis (IEEE Commun. Lett., 2005)

Spectral efficiency for selection combining RAKE receivers over Weibull fading channels. - Nikos C. Sagias; Panagiotis Varzakas; George S. Tombras; George K. Karagiannidis (J. Frankl. Inst., 2005)

Gaussian class multivariate Weibull distributions: theory and applications in fading channels. - Nikos C. Sagias; George K. Karagiannidis (IEEE Trans. Inf. Theory, 2005)

Performance analysis of a class of GSC receivers over nonidentical Weibull fading channels. - Petros S. Bithas; George K. Karagiannidis; Nikos C. Sagias; P. Takis Mathiopoulos; Stavros A. Kotsopoulos; Giovanni Emanuele Corazza (IEEE Trans. Veh. Technol., 2005)

Selection diversity receivers over nonidentical Weibull fading channels. - Nikos C. Sagias; Dimitris A. Zogas; George K. Karagiannidis (IEEE Trans. Veh. Technol., 2005)

Equal-gain and maximal-ratio combining over nonidentical Weibull fading channels. - George K. Karagiannidis; Dimitris A. Zogas; Nikos C. Sagias; Stavros A. Kotsopoulos; George S. Tombras (IEEE Trans. Wirel. Commun., 2005)

Average output SINR of equal-gain diversity in correlated Nakagami-m fading with cochannel interference. - Nikos C. Sagias; George K. Karagiannidis; Dimitris A. Zogas; George S. Tombras; Stavros A. Kotsopoulos (IEEE Trans. Wirel. Commun., 2005)

Multihop Free-Space Optical Communications Over Strong Turbulence Channels. - Theodoros A. Tsiftsis; Harilaos G. Sandalidis; George K. Karagiannidis; Nikos C. Sagias (ICC, 2006)

Communication Theory Capacity of dual-branch selection diversity receivers in correlative Weibull fading. - Nikos C. Sagias (Eur. Trans. Telecommun., 2006)

On the performance analysis of digital communications over generalized-K fading channels. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos; George K. Karagiannidis; Athanasios A. Rontogiannis (IEEE Commun. Lett., 2006)

Closed-form statistics for the sum of squared Nakagami-m variates and its applications. - George K. Karagiannidis; Nikos C. Sagias; Theodoros A. Tsiftsis (IEEE Trans. Commun., 2006)

On the performance analysis of equal-gain diversity receivers over generalized gamma fading channels. - Nikos C. Sagias; George K. Karagiannidis; P. Takis Mathiopoulos; Theodoros A. Tsiftsis (IEEE Trans. Wirel. Commun., 2006)

New Results on SC and MRC Over Nakagami-m Fading Channels with Arbitrary Correlation Matrix. - George C. Alexandropoulos; Nikos C. Sagias; Fotis I. Lazarakis; Kostas Berberidis (GLOBECOM, 2007)

Householder-Matrices based Analysis of SC Receivers over Rayleigh Fading Channels with Arbitrary Correlation. - George C. Alexandropoulos; Kostas Berberidis; Nikos C. Sagias; Fotis I. Lazarakis; Antonis A. Alexandridis; Kostas Dangakis (PIMRC, 2007)

On the Sum of Squared Correlated Rayleigh Variates and Applications to Maximal-Ratio Diversity. - George C. Alexandropoulos; Kostas Berberidis; Nikos C. Sagias; Fotis I. Lazarakis; Christos Datsikas; Antonis A. Alexandridis; Kostas Dangakis (PIMRC, 2007)

Dual-Hop Relaying Networks over Nakagami-M Fading Channels. - Christos Datsikas; George S. Tombras; Nikos C. Sagias; Fotis I. Lazarakis; George C. Alexandropoulos; Antonis A. Alexandridis; Kostas Dangakis (PIMRC, 2007)

GSC diversity receivers over generalized-gamma fading channels. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos (IEEE Commun. Lett., 2007)

Error rate analysis of threshold-based hybrid selection/maximal-ratio diversity over correlated nakagami-m fading channels. - Nikos C. Sagias; Kostas Peppas 001 (IEEE Commun. Lett., 2007)

Dual diversity over correlated Ricean fading channels. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos (J. Commun. Networks, 2007)

On the cascaded Weibull fading channel model. - Nikos C. Sagias; George S. Tombras (J. Frankl. Inst., 2007)

Nast Nakagami: A Novel Stochastic Model for Cascaded Fading Channels. - George K. Karagiannidis; Nikos C. Sagias; P. Takis Mathiopoulos (IEEE Trans. Commun., 2007)

Closed-Form Analysis of Equal-Gain Diversity in Wireless Radio Networks. - Nikos C. Sagias (IEEE Trans. Veh. Technol., 2007)

Comments on "Average LCR and AFD for SC diversity over correlated Weibull fading channels". - Nikos C. Sagias; George K. Karagiannidis (Wirel. Pers. Commun., 2007)

Error performance of triple-branch generalized selection diversity over Nakagami fading channels. - Kostas Peppas 001; Nikos C. Sagias; Fotis I. Lazarakis; Antonis A. Alexandridis; Kostas Dangakis (ISWPC, 2008)

Correction to "Error Rate Analysis of Threshold-Based Hybrid Selection/Maximal-Ratio Combining over Correlated Nakagami-m Fading Channels". - Nikos C. Sagias; Kostas Peppas 001 (IEEE Commun. Lett., 2008)

Performance analysis of dual-diversity receivers over correlated generalised Gamma fading channels. - Petros S. Bithas; Nikos C. Sagias; Theodoros A. Tsiftsis (IET Commun., 2008)

On the Correlated -Distribution With Arbitrary Fading Parameters. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos; Stavros A. Kotsopoulos; Andreas M. Maras (IEEE Signal Process. Lett., 2008)

Outage Analysis of Decode-and-Forward Relaying Over Nakagami- Fading Channels. - Nikos C. Sagias; Fotis I. Lazarakis; George S. Tombras; Christos Datsikas (IEEE Signal Process. Lett., 2008)

The bivariate generalized-Kappa (KappaG) distribution and its application to diversity receivers. - Petros S. Bithas; Nikos C. Sagias; P. Takis Mathiopoulos (IEEE Trans. Commun., 2009)

The trivariate and quadrivariate weibull fading distributions with arbitrary correlation and their applications to diversity reception. - Zafiro G. Papadimitriou; P. Takis Mathiopoulos; Nikos C. Sagias (IEEE Trans. Commun., 2009)

A trivariate nakagami-m distribution with arbitrary covariance matrix and applications to generalized-selection diversity receivers. - Kostas Peppas 001; Nikos C. Sagias (IEEE Trans. Commun., 2009)

New results for the multivariate Nakagami-m fading model with arbitrary correlation matrix and applications. - George C. Alexandropoulos; Nikos C. Sagias; Fotis I. Lazarakis; Kostas Berberidis (IEEE Trans. Wirel. Commun., 2009)

E-CLEMA: A cross-layer design for improved quality of service in mobile WiMAX networks. - Dionysia Triantafyllopoulou; Nikos I. Passas; Lazaros F. Merakos; Nikos C. Sagias; P. Takis Mathiopoulos (Wirel. Commun. Mob. Comput., 2009)

Bit Error and Outage Probability of Serial Relaying Communication Systems. - Christos Datsikas; Kostas P. Peppas; Nikos C. Sagias; Nikolaos D. Tselikas; George S. Tombras (Panhellenic Conference on Informatics, 2010)

Software and Middleware Technologies Based on Open APIs and Protocols for Modern Service Provision in Telecoms. - Nikolaos D. Tselikas; George S. Tselikis; Nikos C. Sagias (Panhellenic Conference on Informatics, 2010)

Spectral efficiency of adaptive transmission and selection diversity on generalised fading channels. - Petros S. Bithas; George P. Efthymoglou; Nikos C. Sagias (IET Commun., 2010)

Serial Free-Space Optical Relaying Communications Over Gamma-Gamma Atmospheric Turbulence Channels. - Christos Datsikas; Kostas P. Peppas; Nikos C. Sagias; George S. Tombras (JOCN, 2010)

Error Rate Performance of Multilevel Signals with Coherent Detection. - Nikos C. Sagias; Ranjan K. Mallik; George S. Tombras (IEEE Trans. Commun., 2010)

Switch-and-Examine Diversity Over Arbitrarily Correlated Nakagami- Fading Channels. - George C. Alexandropoulos; P. Takis Mathiopoulos; Nikos C. Sagias (IEEE Trans. Veh. Technol., 2010)

Dual-hop multi-input multi-output relay systems over spatially correlated Nakagami-m fading channels. - Kostas Peppas 001; Christos Datsikas; Nikos C. Sagias; George S. Tombras (IET Commun., 2011)

On the Sum of Kappa Stochastic Variates and Applications to Equal-Gain Combining. - Petros S. Bithas; Nikos C. Sagias; Ranjan K. Mallik (IEEE Trans. Commun., 2011)

Distribution of Inner Product of Complex Gaussian Random Vectors and its Applications. - Ranjan K. Mallik; Nikos C. Sagias (IEEE Trans. Commun., 2011)

Higher Order Capacity Statistics of Diversity Receivers. - Nikos C. Sagias; Fotis I. Lazarakis; Antonis Alexandridis 001; Kostas Dangakis; George S. Tombras (Wirel. Pers. Commun., 2011)

Serial relaying communications over generalized-gamma fading channels. - Christos Datsikas; Kostas Peppas 001; Nikos C. Sagias; George S. Tombras (Wirel. Commun. Mob. Comput., 2012)

Bit-error-rate performance of semiconductor optical amplifiers in negative exponential fading. - Nikos C. Sagias; Kostas Yiannopoulos; Anthony C. Boucouvalas (CAMAD, 2014)

Minimizing packet loss in high-mobility radio-over-fiber networks. - Evangelos A. Kosmatos; Nikolaos D. Tselikas; Nikos C. Sagias (CSNDSP, 2014)

Equalization of negative-exponential fading in saturated semiconductor optical amplifiers. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (CSNDSP, 2014)

Asymptotic analysis for dual-hop communication networks with PSK and imperfect CSI. - Nikos C. Sagias; Ranjan K. Mallik; Nikolaos D. Tselikas (WCNC, 2014)

SOA nonlinear amplification: A promising fade mitigation technique for optical wireless systems. - Kostas Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (WCNC, 2014)

On the ASEP of Decode-and-Forward Dual-Hop Networks with Pilot-Symbol Assisted M-PSK. - Nikos C. Sagias (IEEE Trans. Commun., 2014)

Semiconductor optical amplifier-assisted optical wireless links: The effect of noise and turbulence. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (ICC, 2015)

On the Performance of Semiconductor Optical Amplifier-Assisted Outdoor Optical Wireless Links. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (IEEE J. Sel. Areas Commun., 2015)

Optimal combiners in optical wireless systems with spatial diversity and pre-amplification. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas; Murat Uysal; Zabih Ghassemlooy (ICC Workshops, 2016)

Physical Layer Security for Multiple-Antenna Systems: A Unified Approach. - Kostas P. Peppas; Nikos C. Sagias; Andreas M. Maras (IEEE Trans. Commun., 2016)

An Arduino-based subsystem for controlling UAVs through GSM. - George N. Solidakis; Fanourios M. Tsokas; Michael C. Batistatos; Nikos C. Sagias; George V. Tsoulos; Dimitra Zarbouti; Georgia E. Athanasiadou (MOCAST, 2017)

On the Statistics of the Error Propagation Effect of Binary Differential Phase-Shift Keying. - Nikos C. Sagias; Ranjan K. Mallik (IEEE Wirel. Commun. Lett., 2017)

An analytical framework in LEO mobile satellite systems servicing batched Poisson traffic. - Ioannis D. Moscholios; Vassilios G. Vassilakis; Panagiotis G. Sarigiannidis; Nikos C. Sagias; Michael D. Logothetis (IET Commun., 2018)

On Channel Sharing Policies in LEO Mobile Satellite Systems. - Ioannis D. Moscholios; Vassilios G. Vassilakis; Nikos C. Sagias; Michael D. Logothetis (IEEE Trans. Aerosp. Electron. Syst., 2018)

Effective Capacity of Multisource Multidestination Cooperative Systems Under Cochannel Interference. - Georgia P. Karatza; Kostas P. Peppas; Nikos C. Sagias (IEEE Trans. Veh. Technol., 2018)

Unified Ergodic Capacity Expressions for AF Dual-Hop Systems With Hardware Impairments. - Georgia P. Karatza; Kostas P. Peppas; Nikos C. Sagias; George V. Tsoulos (IEEE Commun. Lett., 2019)

On the photon counting error probability and its application in optical wireless communications. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (Phys. Commun., 2019)

Impact of Pointing Errors and Fading in a Pre-Amplified Pulse Position Modulation Optical Receiver. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (CSNDSP, 2020)

Pointing Error Analysis of Optically Pre-Amplified Pulse Position Modulation Receivers. - Konstantinos Yiannopoulos; Nikolaos C. Sagias; Anthony C. Boucouvalas (CoRR, 2020)

Characteristics of Recent Aftershocks Sequences (2014, 2015, 2018) Derived from New Seismological and Geodetic Data on the Ionian Islands, Greece. - Alexandra Moshou; Panagiotis Argyrakis; Antonios Konstantaras; Anna-Christina Daverona; Nikos C. Sagias (Data, 2021)

Error rates of arbitrary order optical wireless pulse-position modulation: An efficient approach. - Konstantinos Yiannopoulos; Nikos C. Sagias; Anthony C. Boucouvalas (Phys. Commun., 2022)

A New Family of Nyquist Pulses With Improved Performance. - Kyriakos D. Gazouleas; Nikos C. Sagias; Michael C. Batistatos; Kostas P. Peppas (IEEE Access, 2023)

BEP evaluation of 5G LDPC codes in a pre-amplified optical PPM receiver. - Konstantinos Yiannopoulos; Nikos C. Sagias (Phys. Commun., 2024)