Performance analysis of a threshold-based parallel multiple beam selection scheme for WDM-based systems for Gamma-Gamma distributions

2017 IEEE 7th Annual Computing and Communication Workshop and Conference (CCWC) Pub Date : 2017-01-01 DOI:10.1109/CCWC.2017.7868432

S. Nam, C. Yoon, Mohamed-Slim Alouini

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引用次数: 1

Abstract

In this paper, we statistically analyze the performance of a threshold-based parallel multiple beam selection scheme (TPMBS) for Free-space optical (FSO) based system with wavelength division multiplexing (WDM) in cases where a pointing error has occurred for practical consideration over independent identically distributed (i.i.d.) Gamma-Gamma fading conditions. Specifically, we statistically analyze the characteristics in operation under conventional heterodyne detection (HD) scheme for both adaptive modulation (AM) case in addition to non-AM case (i.e., coherentnon-coherent binary modulation). Then, based on the statistically derived results, we evaluate the outage probability (CDF) of a selected beam, the average spectral efficiency (ASE), the average number of selected beams (ANSB), and the average bit error rate (BER). Some selected results shows that we can obtain the higher spectral efficiency and simultaneously reduce the potential increasing of the complexity of implementation caused by applying the selection based beam selection scheme without a considerable performance loss.

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基于阈值的wdm系统并行多波束选择方案的性能分析

在本文中，我们统计分析了一种基于阈值的并行多波束选择方案(TPMBS)的性能，该方案适用于具有波分复用(WDM)的自由空间光学(FSO)系统，在实际考虑相对于独立同分布(i.i.d)系统存在指向误差的情况下。伽马衰减条件。具体来说，我们统计分析了传统外差检测(HD)方案下自适应调制(AM)和非AM情况下(即相干和非相干二进制调制)的运行特性。然后，基于统计导出的结果，我们评估了选定波束的中断概率(CDF)、平均频谱效率(ASE)、平均选定波束数(ANSB)和平均误码率(BER)。一些选择结果表明，采用基于选择的波束选择方案可以获得更高的频谱效率，同时降低了实现复杂性的潜在增加，而不会造成相当大的性能损失。

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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2017 IEEE 7th Annual Computing and Communication Workshop and Conference (CCWC)

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