光通信技术2025，Vol.49Issue(6)：30-36,7.DOI:10.13921/j.cnki.issn1002-5561.2025.06.006
FSO-UWOC混合双跳系统中断概率性能分析
Outage probability performance analysis of FSO-UWOC hybrid dual-hop system
周宇 1李岳衡 1王炜杰 1吕勇 1居美艳1
作者信息
- 1. 河海大学 信息科学与工程学院,江苏 常州 213200
- 折叠
摘要
Abstract
To address the issue of incomplete channel modeling in existing studies on cross-medium"air-ground-sea"relay communications,this paper analyzes the outage probability performance analysis of a hybrid dual-hop free space optical(FSO)-underwater wireless optical communication(UWOC)system under decode-and-forward(DF)relaying.By constructing com-posite channel models incorporating Gamma-Gamma atmospheric turbulence,generalized Gamma(GGD)underwater turbu-lence,pointing errors,and path loss,closed-form expressions for the system outage probability and its high-signal-to-noise ra-tio asymptotic solutions are derived using Meijer-G functions.Simulation results demonstrate that intensified atmospheric tur-bulence significantly increases the outage probability,with pointing errors exhibiting a more pronounced impact than turbu-lence effects.Increasing the FSO link distance consistently degrades performance,whereas the influence of the UWOC link dis-tance diminishes at high SNR.Heterodyne detection consistently outperforms intensity modulation/direct detection(IM/DD).The theoretical results show strong agreement with simulations,validating the correctness of the proposed model.关键词
解码转发/自由空间光/水下无线光通信/指向误差/湍流衰落/性能分析Key words
decode-and-forward/free space optical/underwater wireless optical communication/pointing error/turbulence fad-ing/performance analysis分类
信息技术与安全科学引用本文复制引用
周宇,李岳衡,王炜杰,吕勇,居美艳..FSO-UWOC混合双跳系统中断概率性能分析[J].光通信技术,2025,49(6):30-36,7.
