Spectral efficiency of direct-sequence code-division multiple-access in cellular mobile radio. - Panagiotis Varzakas; George S. Tombras (Int. J. Commun. Syst., 1997)

Spectral efficiency for FDMA and DS-CDMA in cellular systems. - Panagiotis Varzakas; George S. Tombras (PIMRC, 1998)

Spectral efficiency for a hybrid DS/FH code-division multiple-access system in cellular mobile radio. - Panagiotis Varzakas; George S. Tombras (IEEE Trans. Veh. Technol., 2001)

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

Spectral efficiency of a cellular MC/DS-CDMA system in Rayleigh fading. - Panagiotis Varzakas; George S. Tombras (Int. J. Commun. Syst., 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)

Optimal distance estimation for the spectral efficiency of an hybrid cellular DS/SFH CDMA system. - Panagiotis Varzakas (ISCAS, 2006)

Average channel capacity for Rayleigh fading spread spectrum MIMO systems. - Panagiotis Varzakas (Int. J. Commun. Syst., 2006)

Spectral efficiency of a single-cell multi-carrier DS-CDMA system in Rayleigh fading. - Panagiotis Varzakas; George S. Tombras (J. Frankl. Inst., 2006)

Optimization of an OFDM Rayleigh fading system. - Panagiotis Varzakas (Int. J. Commun. Syst., 2007)

Optimal radio capacity of a Rayleigh fading single-cell spread spectrum MIMO system. - Panagiotis Varzakas (ICT, 2008)

Optimal SIR for an hybrid cellular DS/SFH CDMA system. - Panagiotis Varzakas (Int. J. Commun. Syst., 2008)

On the optimum processing gain for a hybrid DS/FFH-CDMA cellular system over Rayleigh fading channels. - Panagiotis Varzakas (Int. J. Commun. Syst., 2011)

Channel capacity per user in a power and rate adaptive hybrid DS/FFH-CDMA cellular system over Rayleigh fading channels. - Panagiotis Varzakas (Int. J. Commun. Syst., 2012)

Optimum processing gain for a hybrid direct sequence/slow frequency hopping code division multiple access cellular system over Rayleigh fading channels: the direct sequence/slow frequency hopping code division multiple access case. - Panagiotis Varzakas (Int. J. Commun. Syst., 2012)

Estimation of radio capacity of a spread spectrum cognitive radio Rayleigh fading system. - Panagiotis Varzakas (Panhellenic Conference on Informatics, 2013)