网络编码双向双跳混合FSO/RF系统性能分析

2016 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2016-10-01 DOI:10.1109/ATC.2016.7764833

T. V. Nguyen, Tu V. M. Pham, Thu A. Pham, H. Pham, N. Dang, A. Pham

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引用次数: 4

摘要

为了提高双跳混合自由空间光学(FSO)/射频(RF)通信系统的吞吐量，提出了一种基于网络编码的新型双向中继技术。我们研究了所提出的系统在γ - γ大气湍流和Rice/Rayleigh通道上的性能。在分析中还考虑了指向误差对FSO链路的影响。考虑到FSO和RF链路的物理层损伤以及接收机噪声，对端到端中断概率和误码率的封闭表达式进行了解析。数值计算结果表明，在双跳FSO/RF混合系统中使用网络编码双向中继是可行的。此外，还讨论了由FSO和RF链路引起的负面影响的幅度的比较。在此基础上，给出了中继节点定位的建议，以获得更好的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis of network-coded two-way dual-hop mixed FSO/RF systems

In this paper, a novel two-way relaying technique based on network coding is proposed to improve the throughput of dual-hop mixed free-space optics (FSO)/radio-frequency (RF) communication systems. We investigate the performance of the proposed systems over Gamma-Gamma atmospheric turbulence and Rice/Rayleigh channels. The effect of pointing error on FSO link is also considered in our analysis. Closed-form expressions for end-to-end outage probability and bit error rate are analytically formulated, taking into account the physical layer impairments from both FSO and RF links as well as the receiver noise. The numerical results show the feasibility of using network-coded two-way relaying in dual-hop mixed FSO/RF systems. In addition, the comparison between the magnitudes of negative impacts caused by FSO and RF links is discussed. Based on this comparison, the recommendation for locating the relay node is given so that better performance could be obtained.

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2016 International Conference on Advanced Technologies for Communications (ATC)

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