Cooperative Wireless Optical communication system using IWO based optimal relay placement

Abstract

Wireless Optical communication [WOC] is improved using relay assisted transmission which exploits multiple shorter hops that gives a better performance gain. Relay assisted transmission is used as a mitigation tool in combating atmospheric turbulence occurring in the communication channels. The prime aim is to minimize the outage probability and optimize relay locations for parallel and serial FSO relaying. In this paper we aim to address the major limiting factor for links measuring more than a kilometer; the error rate performances is dismal and therefore relay assisted transmission is employed to combat this shortcoming. The main focus of this study is on considering the channel model, in which turbulence-induced fading and path-loss are considered. The locations of the relay are evaluated using different algorithms and then compared to find out the best optimized result obtained from the simulation results.