— This paper considers a relay communication system where cooperative diversity is achieved by spreading the relay transmissions using direct-sequence CDMA (DS/CDMA). We derive e...
We consider the Gaussian Multiple Access Wire-Tap Channel (GMAC-WT). In this scenario, multiple users communicate with an intended receiver in the presence of an intelligent and in...
— 1 In this paper, pilot-assisted transmission over Gauss-Markov Rayleigh fading channels is considered. A simple scenario, where a single pilot signal is transmitted every T sym...
In this paper, we study the diversity-multiplexing tradeoff (DMT) of two-way relay channels (TWRC) with multiantenna relay at finite signal-to-noise ratio (SNR). A two-phase decode...
—In this paper, a novel error probability analysis of orthogonal space-time block coding (OSTBC) over independent but not necessarily identical Hoyt (Nakagami-q) fading channels ...
George A. Ropokis, Athanasios A. Rontogiannis, P. ...