Title :
Finite-SNR diversity-multiplexing tradeoff in multi-relay channels
Author :
Haddadpour, Farzin ; Gholami, Ehsan ; Rastegar, Seyed Hamed ; Behroozi, Hamid
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
In this paper, we investigate the diversity-multiplexing tradeoff (DMT) for multi-relay channels in finite-SNR regime. In our analysis, we consider the decode and forward (DF) relaying strategy and a line of sight path from source to destination. First, we determine the outage probability in a multi-relay scenario and obtain its exact analytical expressions. Then, the outage probability of a multi-relay channel with relay selection is calculated and provided as a closed-form expression. Based on these results, we determine the DMT in finite-SNR regime. Finally, using simulation results, we show that our analysis has accurate results which coincides with that of obtained from Monte-Carlo simulation.
Keywords :
Monte Carlo methods; decode and forward communication; diversity reception; multiplexing; probability; relay networks (telecommunication); wireless channels; DF relaying strategy; DMT; Monte-Carlo simulation; decode and forward relaying strategy; finite-SNR diversity-multiplexing tradeoff; finite-SNR regime; line of sight path; multirelay channel; outage probability; relay selection; Fading; Monte Carlo methods; Multiplexing; Probability; Relays; Signal to noise ratio; Transmitters;
Conference_Titel :
Communication and Information Theory (IWCIT), 2013 Iran Workshop on
Conference_Location :
Tehran
Print_ISBN :
978-1-4673-5020-4
DOI :
10.1109/IWCIT.2013.6555764
