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CO-OFDM系统信道估计算法的性能分析

Performance Analysis of Channel Estimation Algorithm for CO-OFDM System
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摘要 构建CO-OFDM单模光纤系统的基础上,研究了不同的信道算法对接收端数据的影响.对比分析了LS算法和LMMSE算法下系统的性能,并且改进了LMMSE算法.仿真结果表明,系统在误码率(BER)为10-4的情况下,LMMSE改进算法比LS算法接收端性能提高了1dB. The CO-OFDM single-mode optical fiber system is constructed.And the influence of the different channel algorithm is studied to the receiver data.The system performance is analysied by using channel LS algorithm or LMMSE algorithm,the improved LMMSE algorithm is presented.The simulation results show that： the required receiver OSNR at bit-error-rate BER=10-4 is reduced about 1 dB by using improved LMMSE algorithm compared with LS algorithm in the CO-OFDM single-mode optical fiber system.
作者 郭敏杰 童峥嵘 杨秀峰 曹晔
机构地区 天津理工大学计算机与通信工程学院智能计算与软件新技术重点实验室及薄膜电子与通信器件实验室
出处 《南开大学学报（自然科学版）》 CAS CSCD 北大核心 2012年第6期28-32,共5页 Acta Scientiarum Naturalium Universitatis Nankaiensis
基金 天津市自然科学基金(11JCYBJC00100)
关键词 相干光正交频分复用 单模光纤 最小二乘 最小均方误差 CO-OFDM single-mode optical fiber LS LMMSE
分类号 TN929.11 [电子电信—通信与信息系统]
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参考文献8

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二级参考文献15

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共引文献17

南开大学学报（自然科学版）
2012年 第6期

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