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Non-Gaussian Approximation Method for Phase Encoding Optical Code Division Multi-Access System
Author(s): 
Pages: 10-14
Year: Issue:  1
Journal: ACTA OPTICA SINICA

Keyword:  光通信光码分多址非高斯近似法矩母函数鞍点近似;
Abstract: 随着相位编解码器关键技术的突破,精确分析相位编码光码分多址(OCDMA)系统误码率性能显得十分必要.为了精确分析相位编码光码分多址系统误码率性能,提出了一种基于判决变量的矩母函数和鞍点近似的非高斯近似方法,该方法能够精确考虑多址干扰、散粒噪声、热噪声各自的统计特性和相互间的非加性关系.比较了高斯近似、精确计算和文中所提出方法在分析相位编码系统误码率时的计算精度和复杂度,结果证明该分析方法具有分析精度高、计算复杂度低的优点.
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