Outage Performance for Parallel Relay-Assisted Free-Space Optical Communications in Strong Turbulence with Pointing Errors

This paper investigates the performance of parallel relay-assisted transmission for free-space optical (FSO) communication systems over strong turbulence channel. The analysis is carried out for systems employing decode-and-forward (DF) relays and for strong turbulence channel which can be modeled by the Gamma-Gamma distribution. Take atmospheric attenuation, atmospheric turbulence and pointing errors into account, a statistical model for the optical intensity fluctuation at the receiver is presented. For given weather and misalignment conditions, an exact analytical expression for the end-to-end outage probability of DF systems is obtained. The analytical and simulation results show that the closed-form expression can provide sufficient precision for evaluating outage performance of parallel relay-assisted FSO communications.
Free-space optical communication outage probability parallel relay pointing errors atmospheric turbulence.
Min Feng Jun-Bo Wang Ming Sheng Ling-Ling Cao Xiu-Xiu Xie Ming Chen
College of Information Science and Technology, Nanjing University of Aeronautics and Astronautics, N National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China of S National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China.
国际会议
南京
英文
1-5
2011-11-09(万方平台首次上网日期,不代表论文的发表时间)