基于交织器的大气光多址方案:容量和误码率性能

2011 International Conference on Space Optical Systems and Applications (ICSOS) Pub Date : 2011-05-11 DOI:10.1109/ICSOS.2011.5783680

Weiwei Zhang, Xiaolin Zhou, W. Shen

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引用次数: 0

摘要

本文研究了一种涡轮编码光交织多址(OIDMA)方案。提出了一种基于最大后验概率(MAP)的异步开关键控(OOK) MUD算法。此外，采用信噪比演化迭代技术对系统容量进行了分析。考虑到热噪声和背景噪声的影响，在对数正态湍流通道上评估了误码率。仿真结果表明，该方案具有良好的收敛性能和较低的误码率。此外，相关的基于交织器的迭代MUD算法在异步场景下具有很强的鲁棒性。

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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An interleaver-based atmospheric optical multiple access scheme: Capacity and BER performance

In this paper, a turbo-coded optical interleave-division multiple-access (OIDMA) scheme is studied. A maximum a posteriori (MAP) based asynchronous on-off keying (OOK) MUD algorithm is proposed. Besides, system capacity is analyzed with an iterative technique called SNR evolution. BER is evaluated over log-normal turbulence channels, taking into consideration the effects of thermal noise and background noise. Simulation results show that the proposed OIDMA scheme has good convergence property and low BER performance. Moreover, the related interleaver-based iteration MUD algorithm is quite robust in the asynchronous scenarios.

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2011 International Conference on Space Optical Systems and Applications (ICSOS)

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