MIMO-OFDM系统中检测器复杂度与性能分析  

Detector Complexity and Performance Analysis in MIMO-OFDM Systems

作　　者：周玲[1] 李湘文[1] 张双[1] 杨健云 ZHOU Ling;LI Xiangwen;ZHANG Shuang;YANG Jianyun(Engineering ＆ Technical College,Chengdu University of Technology,Leshan 614000;Xinqiao Middle Mchool in Xinqiao Town,Hengyang 421300)

机构地区：[1]成都理工大学工程技术学院,乐山614000 [2]新桥镇贯底中学,衡阳421300

出　　处：《舰船电子工程》2018年第7期96-99,共4页Ship Electronic Engineering

基　　金：国家高技术研究发展计划(863计划)基金(编号:A08K021);国家自然科学基金面上项目(编号:61201397;11375055);四川省教育厅重大培育项目(编号:17CZ005);四川省教育厅基金项目(编号:17ZA047);四川省教育厅重点项目(编号:18ZA0620;18ZA0622);教育部教育管理信息中心专项课题(编号:教信息中心【2016】20号);乐山市产学研合作项目;成都理工大学工程技术学院基金项目(编号:C122015002;C122007021)

摘　　要：MIMO-OFDM系统可以成倍地提高频谱利用率,因此开发高效可靠的接收机成为研究的热点。论文对MIMO-OFDM编码进行了链路级仿真,对KLSD探测器和ASY-PD探测器两种检测器算法进行分析比较,总结了检测算法的性能和复杂度。结果表明,聚对角化方法和球面译码这两种算法有效地解决了复杂性和性能之间的问题,在低和高的计算复杂度上,性能各具优势。The MIMO-OFDM system can exponentially increase the spectrum utilization rate. Therefore,developing a highlyefficient and reliable receiver has become a hot research topic. In this paper,the MIMO-OFDM coding is simulated by link level.According to the comparison and analysis of two detector algorithms of KLSD detector and ASY-PD detector,the performance andcomplexity of the detection algorithm are summarized. The results show that the algorithms of poly-digitalization and spherical de-coding effectively solve the problems of complexity and performance,and have advantages in low and high computational complexityrespectively.

关 键 词：MIMO OFDM编码 检测器算法 频率选择性衰落 

分 类 号：TN929.531[电子电信—通信与信息系统]