超短脉冲光码分多址系统中的多用户检测器  

Multi-user detector for ultrashort pulse optical code-division multiple-access systems

作　　者：张海滨[1] 宋文涛[1] 黄培中[1,2] 李毓麟[1,2] 

机构地区：[1]上海交通大学电子工程系 [2]区域光纤通信网与新型光通信系统国家重点实验室,上海200030

出　　处：《通信学报》2004年第10期168-173,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(60272080);上海市科技发展基金资助项目(00JC14054)

摘　　要：将多用户检测的概念应用于超短脉冲光码分多址(OCDMA)系统,提出了一种多级结构的多用户检测器——光电混合并行干扰消除(OEH-PIC)检测器,并为每一级检测建立了判决准则。算法复杂度分析表明:OEH-PIC 检测器的每二进位时间复杂度(TCB)与系统中的用户数和检测器的级数都成线性关系,具有可实现性。性能分析表明:与传统单用户检测器相比,OEH-PIC检测器使系统的误码率性能得到很大的改善。The concept of multi-user detection was applied in ultrashort pulse optical code-division was applied multiple-access (OCDMA) systems. A new optical-electronic-hybrid parallel interference cancellation (OEH-PIC) detector with multi-stage structure was proposed, and the decision criteria were set up. The complexity analysis reveals that the total complexity per binary (TCB) increases linearly with the increase of either the user number or the stage number. The performance analysis reveals that, compared with the conventional detector, the new proposed detector will improve the systems performance dramatically.

关 键 词：光码分多址 超短脉冲 多用户检测 多址干扰 

分 类 号：TN929.11[电子电信—通信与信息系统]