Title :
Relay selection with threshold value for DF based cooperative systems
Author :
Aydin, Erdogan ; Ilhan, Haci
Author_Institution :
Elektron. ve Haberlesme Muh. Bolumu, Yildiz Teknik Univ., İstanbul, Turkey
Abstract :
In this paper, a cooperative system structure that utilizes decode and forward (DF) method with relay selection based on the optimum relaying strategy have been proposed. The source-relay, relay-destination and source destination links are modeled as Nakagami-m distributed random variables. In order to decrease performance degradation due to error propagations in DF based wireless cooperative networks and increase the error performance of the system, virtual noise (VN), MRC and cooperative-MRC based detection techniques with the optimal threshold value are considered. Optimum threshold value functions of the considered techniques are derived theoretically.
Keywords :
Nakagami channels; cooperative communication; decode and forward communication; diversity reception; relay networks (telecommunication); DF based cooperative systems; DF based wireless cooperative networks; MRC technique; Nakagami-m distributed random variables; cooperative-MRC based detection technique; decode-and-forward method; error propagations; optimum relaying strategy; optimum threshold value functions; performance degradation; relay selection; relay-destination links; source destination links; source-relay links; virtual noise; Binary phase shift keying; Bit error rate; Cooperative systems; Lead; Relays; Signal to noise ratio; Wireless communication; Cooperative diversity; Nakagami-m fading; SNR based selection relaying; relay selection; virtual noise;
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2015 23th
Conference_Location :
Malatya
DOI :
10.1109/SIU.2015.7129864
