Nikos C. Sagias

Publication Activity (10 Years)

Years Active: 2004-2024
Publications (10 Years): 14

Top Topics

Error Propagation

Top Venues

IEEE Trans. Commun.

Publications

Konstantinos Yiannopoulos, Nikos C. Sagias
BEP evaluation of 5G LDPC codes in a pre-amplified optical PPM receiver. Phys. Commun. 62 (2024)
Kyriakos D. Gazouleas, Nikos C. Sagias, Michael C. Batistatos, Kostas P. Peppas
A New Family of Nyquist Pulses With Improved Performance. IEEE Access 11 (2023)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
Error rates of arbitrary order optical wireless pulse-position modulation: An efficient approach. Phys. Commun. 53 (2022)
Alexandra Moshou, Panagiotis Argyrakis, Antonios Konstantaras, Anna-Christina Daverona, Nikos C. Sagias
Characteristics of Recent Aftershocks Sequences (2014, 2015, 2018) Derived from New Seismological and Geodetic Data on the Ionian Islands, Greece. Data 6 (2) (2021)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
Impact of Pointing Errors and Fading in a Pre-Amplified Pulse Position Modulation Optical Receiver. CSNDSP (2020)
Georgia P. Karatza, Kostas P. Peppas, Nikos C. Sagias, George V. Tsoulos
Unified Ergodic Capacity Expressions for AF Dual-Hop Systems With Hardware Impairments. IEEE Commun. Lett. 23 (6) (2019)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
On the photon counting error probability and its application in optical wireless communications. Phys. Commun. 36 (2019)
Georgia P. Karatza, Kostas P. Peppas, Nikos C. Sagias
Effective Capacity of Multisource Multidestination Cooperative Systems Under Cochannel Interference. IEEE Trans. Veh. Technol. 67 (9) (2018)
Ioannis D. Moscholios, Vassilios G. Vassilakis, Panagiotis G. Sarigiannidis, Nikos C. Sagias, Michael D. Logothetis
An analytical framework in LEO mobile satellite systems servicing batched Poisson traffic. IET Commun. 12 (1) (2018)
Ioannis D. Moscholios, Vassilios G. Vassilakis, Nikos C. Sagias, Michael D. Logothetis
On Channel Sharing Policies in LEO Mobile Satellite Systems. IEEE Trans. Aerosp. Electron. Syst. 54 (4) (2018)
Nikos C. Sagias, Ranjan K. Mallik
On the Statistics of the Error Propagation Effect of Binary Differential Phase-Shift Keying. IEEE Wirel. Commun. Lett. 6 (6) (2017)
George N. Solidakis, Fanourios M. Tsokas, Michael C. Batistatos, Nikos C. Sagias, George V. Tsoulos, Dimitra Zarbouti, Georgia E. Athanasiadou
An Arduino-based subsystem for controlling UAVs through GSM. MOCAST (2017)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas, Murat Uysal, Zabih Ghassemlooy
Optimal combiners in optical wireless systems with spatial diversity and pre-amplification. ICC Workshops (2016)
Kostas P. Peppas, Nikos C. Sagias, Andreas M. Maras
Physical Layer Security for Multiple-Antenna Systems: A Unified Approach. IEEE Trans. Commun. 64 (1) (2016)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
On the Performance of Semiconductor Optical Amplifier-Assisted Outdoor Optical Wireless Links. IEEE J. Sel. Areas Commun. 33 (9) (2015)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
Semiconductor optical amplifier-assisted optical wireless links: The effect of noise and turbulence. ICC (2015)
Nikos C. Sagias
On the ASEP of Decode-and-Forward Dual-Hop Networks with Pilot-Symbol Assisted M-PSK. IEEE Trans. Commun. 62 (2) (2014)
Nikos C. Sagias, Ranjan K. Mallik, Nikolaos D. Tselikas
Asymptotic analysis for dual-hop communication networks with PSK and imperfect CSI. WCNC (2014)
Nikos C. Sagias, Kostas Yiannopoulos, Anthony C. Boucouvalas
Bit-error-rate performance of semiconductor optical amplifiers in negative exponential fading. CAMAD (2014)
Kostas Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
SOA nonlinear amplification: A promising fade mitigation technique for optical wireless systems. WCNC (2014)
Evangelos A. Kosmatos, Nikolaos D. Tselikas, Nikos C. Sagias
Minimizing packet loss in high-mobility radio-over-fiber networks. CSNDSP (2014)
Konstantinos Yiannopoulos, Nikos C. Sagias, Anthony C. Boucouvalas
Equalization of negative-exponential fading in saturated semiconductor optical amplifiers. CSNDSP (2014)
Christos Datsikas, Kostas Peppas, Nikos C. Sagias, George S. Tombras
Serial relaying communications over generalized-gamma fading channels. Wirel. Commun. Mob. Comput. 12 (13) (2012)
Kostas Peppas, Christos Datsikas, Nikos C. Sagias, George S. Tombras
Dual-hop multi-input multi-output relay systems over spatially correlated Nakagami-m fading channels. IET Commun. 5 (15) (2011)
Nikos C. Sagias, Fotis I. Lazarakis, Antonis Alexandridis, Kostas Dangakis, George S. Tombras
Higher Order Capacity Statistics of Diversity Receivers. Wirel. Pers. Commun. 56 (4) (2011)
Petros S. Bithas, Nikos C. Sagias, Ranjan K. Mallik
On the Sum of Kappa Stochastic Variates and Applications to Equal-Gain Combining. IEEE Trans. Commun. 59 (9) (2011)
Ranjan K. Mallik, Nikos C. Sagias
Distribution of Inner Product of Complex Gaussian Random Vectors and its Applications. IEEE Trans. Commun. 59 (12) (2011)
Christos Datsikas, Kostas P. Peppas, Nikos C. Sagias, George S. Tombras
Serial Free-Space Optical Relaying Communications Over Gamma-Gamma Atmospheric Turbulence Channels. JOCN 2 (8) (2010)
Petros S. Bithas, George P. Efthymoglou, Nikos C. Sagias
Spectral efficiency of adaptive transmission and selection diversity on generalised fading channels. IET Commun. 4 (17) (2010)
Nikos C. Sagias, Ranjan K. Mallik, George S. Tombras
Error Rate Performance of Multilevel Signals with Coherent Detection. IEEE Trans. Commun. 58 (8) (2010)
Christos Datsikas, Kostas P. Peppas, Nikos C. Sagias, Nikolaos D. Tselikas, George S. Tombras
Bit Error and Outage Probability of Serial Relaying Communication Systems. Panhellenic Conference on Informatics (2010)
Nikolaos D. Tselikas, George S. Tselikis, Nikos C. Sagias
Software and Middleware Technologies Based on Open APIs and Protocols for Modern Service Provision in Telecoms. Panhellenic Conference on Informatics (2010)
George C. Alexandropoulos, P. Takis Mathiopoulos, Nikos C. Sagias
Switch-and-Examine Diversity Over Arbitrarily Correlated Nakagami- Fading Channels. IEEE Trans. Veh. Technol. 59 (4) (2010)
Zafiro G. Papadimitriou, P. Takis Mathiopoulos, Nikos C. Sagias
The trivariate and quadrivariate weibull fading distributions with arbitrary correlation and their applications to diversity reception. IEEE Trans. Commun. 57 (11) (2009)
Petros S. Bithas, Nikos C. Sagias, P. Takis Mathiopoulos
) distribution and its application to diversity receivers. IEEE Trans. Commun. 57 (9) (2009)
George C. Alexandropoulos, Nikos C. Sagias, Fotis I. Lazarakis, Kostas Berberidis
New results for the multivariate Nakagami-m fading model with arbitrary correlation matrix and applications. IEEE Trans. Wirel. Commun. 8 (1) (2009)
Kostas Peppas, Nikos C. Sagias
A trivariate nakagami-m distribution with arbitrary covariance matrix and applications to generalized-selection diversity receivers. IEEE Trans. Commun. 57 (7) (2009)
Dionysia Triantafyllopoulou, Nikos I. Passas, Lazaros F. Merakos, Nikos C. Sagias, P. Takis Mathiopoulos
E-CLEMA: A cross-layer design for improved quality of service in mobile WiMAX networks. Wirel. Commun. Mob. Comput. 9 (9) (2009)
Nikos C. Sagias, Ranjan K. Mallik, George S. Tombras
Error Rate Performance of Multilevel Signals with Coherent Detection. GLOBECOM (2008)
Nikos C. Sagias, Kostas Peppas
Correction to "Error Rate Analysis of Threshold-Based Hybrid Selection/Maximal-Ratio Combining over Correlated Nakagami-m Fading Channels". IEEE Commun. Lett. 12 (6) (2008)
Petros S. Bithas, Nikos C. Sagias, P. Takis Mathiopoulos, Stavros A. Kotsopoulos, Andreas M. Maras
On the Correlated -Distribution With Arbitrary Fading Parameters. IEEE Signal Process. Lett. 15 (2008)
Nikos C. Sagias, Fotis I. Lazarakis, George S. Tombras, Christos Datsikas
Outage Analysis of Decode-and-Forward Relaying Over Nakagami- Fading Channels. IEEE Signal Process. Lett. 15 (2008)
Kostas Peppas, Nikos C. Sagias, Fotis I. Lazarakis, Antonis A. Alexandridis, Kostas Dangakis
Error performance of triple-branch generalized selection diversity over Nakagami fading channels. ISWPC (2008)
Petros S. Bithas, Nikos C. Sagias, Theodoros A. Tsiftsis
Performance analysis of dual-diversity receivers over correlated generalised Gamma fading channels. IET Commun. 2 (1) (2008)
Petros S. Bithas, Nikos C. Sagias, P. Takis Mathiopoulos
Dual diversity over correlated Ricean fading channels. J. Commun. Networks 9 (1) (2007)
Nikos C. Sagias, George S. Tombras
On the cascaded Weibull fading channel model. J. Frankl. Inst. 344 (1) (2007)
Nikos C. Sagias
Closed-Form Analysis of Equal-Gain Diversity in Wireless Radio Networks. IEEE Trans. Veh. Technol. 56 (1) (2007)
Nikos C. Sagias, George K. Karagiannidis
Comments on "Average LCR and AFD for SC diversity over correlated Weibull fading channels". Wirel. Pers. Commun. 43 (2) (2007)
Petros S. Bithas, Nikos C. Sagias, P. Takis Mathiopoulos
GSC diversity receivers over generalized-gamma fading channels. IEEE Commun. Lett. 11 (12) (2007)
George C. Alexandropoulos, Kostas Berberidis, Nikos C. Sagias, Fotis I. Lazarakis, Christos Datsikas, Antonis A. Alexandridis, Kostas Dangakis
On the Sum of Squared Correlated Rayleigh Variates and Applications to Maximal-Ratio Diversity. PIMRC (2007)
Christos Datsikas, George S. Tombras, Nikos C. Sagias, Fotis I. Lazarakis, George C. Alexandropoulos, Antonis A. Alexandridis, Kostas Dangakis
Dual-Hop Relaying Networks over Nakagami-M Fading Channels. PIMRC (2007)
George C. Alexandropoulos, Nikos C. Sagias, Fotis I. Lazarakis, Kostas Berberidis
New Results on SC and MRC Over Nakagami-m Fading Channels with Arbitrary Correlation Matrix. GLOBECOM (2007)
Nikos C. Sagias, Kostas Peppas
Error rate analysis of threshold-based hybrid selection/maximal-ratio diversity over correlated nakagami-m fading channels. IEEE Commun. Lett. 11 (12) (2007)
George K. Karagiannidis, Nikos C. Sagias, P. Takis Mathiopoulos
Nast Nakagami: A Novel Stochastic Model for Cascaded Fading Channels. IEEE Trans. Commun. 55 (8) (2007)
George C. Alexandropoulos, Kostas Berberidis, Nikos C. Sagias, Fotis I. Lazarakis, Antonis A. Alexandridis, Kostas Dangakis
Householder-Matrices based Analysis of SC Receivers over Rayleigh Fading Channels with Arbitrary Correlation. PIMRC (2007)
Nikos C. Sagias
Communication Theory Capacity of dual-branch selection diversity receivers in correlative Weibull fading. Eur. Trans. Telecommun. 17 (1) (2006)
George K. Karagiannidis, Nikos C. Sagias, Theodoros A. Tsiftsis
Closed-form statistics for the sum of squared Nakagami-m variates and its applications. IEEE Trans. Commun. 54 (8) (2006)
Petros S. Bithas, Nikos C. Sagias, P. Takis Mathiopoulos, George K. Karagiannidis, Athanasios A. Rontogiannis
On the performance analysis of digital communications over generalized-K fading channels. IEEE Commun. Lett. 10 (5) (2006)
Nikos C. Sagias, George K. Karagiannidis, P. Takis Mathiopoulos, Theodoros A. Tsiftsis
On the performance analysis of equal-gain diversity receivers over generalized gamma fading channels. IEEE Trans. Wirel. Commun. 5 (10) (2006)
Theodoros A. Tsiftsis, Harilaos G. Sandalidis, George K. Karagiannidis, Nikos C. Sagias
Multihop Free-Space Optical Communications Over Strong Turbulence Channels. ICC (2006)
Nikos C. Sagias, Dimitris A. Zogas, George K. Karagiannidis
Selection diversity receivers over nonidentical Weibull fading channels. IEEE Trans. Veh. Technol. 54 (6) (2005)
George K. Karagiannidis, Theodoros A. Tsiftsis, Nikos C. Sagias
A closed-form upper-bound for the distribution of the weighted sum of Rayleigh variates. IEEE Commun. Lett. 9 (7) (2005)
Nikos C. Sagias, George S. Tombras, George K. Karagiannidis
New results for the Shannon channel capacity in generalized fading channels. IEEE Commun. Lett. 9 (2) (2005)
Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, George S. Tombras, Stavros A. Kotsopoulos
Average output SINR of equal-gain diversity in correlated Nakagami-m fading with cochannel interference. IEEE Trans. Wirel. Commun. 4 (4) (2005)
Nikos C. Sagias, Panagiotis Varzakas, George S. Tombras, George K. Karagiannidis
Spectral efficiency for selection combining RAKE receivers over Weibull fading channels. J. Frankl. Inst. 342 (1) (2005)
Nikos C. Sagias, George K. Karagiannidis
Gaussian class multivariate Weibull distributions: theory and applications in fading channels. IEEE Trans. Inf. Theory 51 (10) (2005)
George K. Karagiannidis, Theodoros A. Tsiftsis, Ranjan K. Mallik, Nikos C. Sagias, Stavros A. Kotsopoulos
Closed-form bounds for multihop relayed communications in Nakagami-m fading. ICC (2005)
Petros S. Bithas, George K. Karagiannidis, Nikos C. Sagias, P. Takis Mathiopoulos, Stavros A. Kotsopoulos, Giovanni Emanuele Corazza
Performance analysis of a class of GSC receivers over nonidentical Weibull fading channels. IEEE Trans. Veh. Technol. 54 (6) (2005)
George K. Karagiannidis, Dimitris A. Zogas, Nikos C. Sagias, Stavros A. Kotsopoulos, George S. Tombras
Equal-gain and maximal-ratio combining over nonidentical Weibull fading channels. IEEE Trans. Wirel. Commun. 4 (3) (2005)
Dimitris A. Zogas, Nikos C. Sagias, George S. Tombras, George K. Karagiannidis
Communication Theory Average output SNR of equal-gain diversity receivers over correlative Weibull fading channels. Eur. Trans. Telecommun. 16 (6) (2005)
George K. Karagiannidis, Nikos C. Sagias, P. Takis Mathiopoulos
The N* Nakagami fading channel model. ISWCS (2005)
Nikos C. Sagias, George K. Karagiannidis
Effects of carrier phase error on EGC receivers in correlated Nakagami-m fading. IEEE Commun. Lett. 9 (7) (2005)
Nikos C. Sagias, P. Takis Mathiopoulos
Switched diversity receivers over generalized gamma fading channels. IEEE Commun. Lett. 9 (10) (2005)
Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, Panayiotis Takis Mathiopoulos, George S. Tombras, Fotini-Niovi Pavlidou
Second order statistics and channel spectral efficiency for selection diversity receivers in Weibull fading. PIMRC (2004)
Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, P. Takis Mathiopoulos
Selection diversity for wireless communications with non-identical Weibull statistics. GLOBECOM (2004)
Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, P. Takis Mathiopoulos, George S. Tombras
Performance analysis of dual selection diversity in correlated Weibull fading channels. IEEE Trans. Commun. 52 (7) (2004)
Nikos C. Sagias, Dimitris A. Zogas, George K. Karagiannidis, George S. Tombras
Channel capacity and second-order statistics in Weibull fading. IEEE Commun. Lett. 8 (6) (2004)
George K. Karagiannidis, Dimitris A. Zogas, Nikos C. Sagias, Theodoros A. Tsiftsis, P. Takis Mathiopoulos
Multihop communications with fixed-gain relays over generalized fading channels. GLOBECOM (2004)
Nikos C. Sagias, Panagiotis Varzakas, George S. Tombras, George K. Karagiannidis
Average channel capacity for generalized-selection combining RAKE receivers. Eur. Trans. Telecommun. 15 (5) (2004)
Nikos C. Sagias, George K. Karagiannidis, Dimitris A. Zogas, P. Takis Mathiopoulos, George S. Tombras, Stavros A. Kotsopoulos
Dual selection diversity over correlated Weibull fading channels. ICC (2004)