大规模检测算法在光通信系统中的研究  

The Research of Massive Multiple Input Multiple Output Detection Algorithms in Optical Fiber Communication System

作　　者：樊峰菊 张建勇[2] 宋义梅 胡伟国 密术超 FAN Feng-ju;ZHANG Jian-yong;SONG Yi-mei;HU Wei-guo;MI Shu-chao(Institute of Lightwave Technology,Beijing Jiaotong University,Beijing 100044,China;Key Laboratory of All-Optical Network and Advanced Telecommunication Network of EMC,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学光波技术研究所,北京100044 [2]北京交通大学EMC全光网络与高级电信网络重点实验室,北京100044

出　　处：《光通信研究》2022年第5期12-17,共6页Study on Optical Communications

基　　金：国家自然科学基金资助项目(61671047)。

摘　　要：针对多输入多输出(MIMO)检测算法在大规模模式数目的模分复用(MDM)光纤信道中用来补偿模式相关损耗(MDL)时,会出现计算复杂度过高、性能下降的问题,文章提出将大规模MIMO检测算法应用于光纤信道中。文章研究的算法有最小均方误差(MMSE)、共轭梯度(CG)、高斯-塞德尔(GS)、基于无穷范数的乘子交替方向(ADMIN)法和基于盒约束的优化坐标下降(OCDBOX)法。结果表明,在MDL受损的光通信系统中,OCDBOX算法表现出最好的误码率(BER)性能,但复杂度较高。而ADMIN检测算法具有次好的BER性能和较低的计算复杂度,因此在MDL受损的MDM系统中,ADMIN检测算法可以作为良好的候选方案。Multiple Input Multiple Output(MIMO)detection algorithm is used to compensate the Mode Dependent Loss(MDL)in Mode Division Multiplexing(MDM)optical fiber channel.The problem of MIMO detection algorithm is that the computational complexity is too high and the performance is degraded with a large number of modes.This paper proposes to apply Massive-MIMO detection algorithms to the fiber channel,The algorithms include Minimum Mean Square Error(MMSE),Conjugate Gradient(CG),Gauss Seidel(GS),and Alternating Direction Method of multipliers based Infinity-Norm(ADMIN),and Optimized Coordinate Descent based BOX constraint(OCDBOX).The result shows that the OCDBOX has the best Bit Error Rate(BER)performance in MDL-impaired MDM optical fiber communication system while higher complexity.The ADMIN has the second best BER performance and lower computational complexity.Therefore,the ADMIN detection algorithm can represent a good candidate in the MDM system with MDL.

关 键 词：模分复用 模式相关损耗 大规模多输入多输出检测算法 误码率性能 

分 类 号：TN913.7[电子电信—通信与信息系统]