Open AccessPerformance analysis of mixed RF/FSO system with CCI
Author(s) -
Wang Zhuo,
Shi Wenxiao,
Liu Wei
Publication year - 2019
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2018.5653
Subject(s) - computer science , radio frequency , telecommunications
In this study, the performance of the mixed radio‐frequency (RF)/free‐space optical (FSO) system with co‐channel interference (CCI) is investigated. The RF links are modelled as Rayleigh fading, whereas FSO links follow M‐distribution with pointing errors. Assume the amplify‐and‐forward relay is corrupted by multiple CCIs, and both fixed and variable gain relay schemes are considered. Novel expressions for the end‐to‐end outage probability (OP), symbol error rate (SER) and outage capacity in different cases are presented and analysed. Numerical results demonstrate the existence of OP and SER floors in the presence of CCIs, which implies system performance is dominant by RF links, and interference is the main factor affecting the system performance. Additionally, the fixed gain scheme provides a performance enhancement compared with the variable gain scheme in the authors’ system.