Impact of Co-Channel Interference on the Outage Performance Under Multiple Type II Relay Environments

Autor: Seyeong Choi, Mohamed-Slim Alouini, Sung Sik Nam
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: IEEE Access, Vol 5, Pp 26201-26210 (2017)
Druh dokumentu: article
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2017.2773630
Popis: In this paper, through an exact analysis of the outage probability, we investigate the impact of co-channel interference (CCI) on the outage performance of type II (or user equipment) relay under multiple-relay environments considering the selection combining-based relay selection scheme with the decode-and-forward protocol. We consider the signal to interference plus noise ratio (SINR) over both independent and identically distributed and independent but non-identically distributed fading channels. To fully take into account the effect of CCI, we adopt a more practical parameter such as the CCI coefficient. The major difficulty in the analysis resides in the determination of the statistics of the output SINR. To settle this problem, we first present the general but relatively simplified expressions for the statistics and then the related outage probability in closed-form. Furthermore, to consider more practical scenario, based on the fact that the number of participating relays can be random, we investigate the average outage probability by averaging the number of participating relays.
Databáze: Directory of Open Access Journals