基于强扰动信道的编码FSO系统错误率分析

Analysis of Coded FSO Systematic Error Probability based on the Strong Turbulence Channels

自由空间光通信中空气扰动产生的衰落,可以使用差错控制编码来降低。该文给出了工作在大气信道下的编码FSO系统错误率的边界。大气信道可用强扰动条件下的相关值K的分布来建模,从中得到配对错误概率PEP(pairwise error probability)的上界,并运用一致限技术及所得PEP获得比特错误率的上界。仿真实验结果验证了其与理论的一致性。

The fading over free-space optical（FSO） caused by turbulence can be induced by using error control coding.The paper presents the error rate bounds of coded FSO system,which operates under atmospheric turbulence channels,which can be modeled by correlated K distribution under strong turbulence conditions.The paper gets the upper boundary of PEP and applies consistent limit technology and PEP to obtain the upper boundary of bit error rate.Results of simulation further verify the analytical results.