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Performance Analysis of Mixed RF/FSO Dual-hop Transmission with Switch-and-Stay Combining

Switch-and-Stay Combining 기반 Mixed RF/FSO Dual-hop 전송 시스템 성능 분석

  • Received : 2017.11.15
  • Accepted : 2018.03.09
  • Published : 2018.04.30

Abstract

In this paper, we provide the performance analyses of a dual-hop amplify-and-forward(AF) relay transmission composed of asymmetric radio-frequence(RF) and free-space optical(FSO) links. In the mixed RF/FSO system, a relay is equipped with two receive antennas for RF signals and one additional transmit antenna for FSO signals. In order to improve a performance of RF link, a switch-and-stay (SSC) diversity technique is applied at the relay which can provide a proper link performance with a low complexity. Specifically, we offer the performance analyses of the proposed system in terms of outage probability and secrecy outage probability. In numerical examples, we compare the system performances with no diversity and selection combining systems and verify our analytical results via computer-based Monte-Carlo simulations.

Acknowledgement

Supported by : Korea Foundation for The advancement of Science & Creativity (KOFAC)

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