期刊文献+

改进的VBLAST检测算法及其在多载波CDMA系统中的应用

Improved VBLAST Detection Algorithm and Its Application in Multi-Carrier CDMA Systems
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摘要 将多输入多输出(MIMO)技术应用于传统的MC\DS CDMA方案,构成MIMO MC\DS CDMA系统,能在很大程度上提高MC\DS CDMA方案的性能。在深入研究低复杂度的QR分解相关算法的基础上,提出了一种MIMOMC\DS CDMA系统中改进的VBLAST检测算法——平行干扰消除QR分解检测算法,该算法进一步抑制了误码传播现象。仿真结果表明,所提出的算法无论是在单用户或者多用户条件下都能显著提高系统的误码率性能。 Abstract :Applying MIMO technique to conventional MC/DS CDMA scheme to form MIMO MC /DS CDMA system will improve the system performance. A parallel interference cancellation QR decom- position detection algorithm of MIMO MC/DS CDMA system is proposed based on the study of low complexity algorithms with QR decomposition,in which error propagation is further suppressed. Simulation results have shown that the proposed algorithm improves the BER performance significantly in single user or multi-user environment.
出处 《南京邮电大学学报(自然科学版)》 2010年第2期41-45,共5页 Journal of Nanjing University of Posts and Telecommunications:Natural Science Edition
基金 国家重点基础研究发展计划(973计划)(2007CB310607) 国家自然科学基金(60972041) 国家重大专项(2009ZX03003-006) 教育部博士点基金(20080293004) 东南大学移动通信国家重点实验室开放课题基金(N200809) 江苏省高校自然科学基础研究计划重大项目(08KJD510001)资助项目
关键词 VBLAST 多载波 CDMA QR分解 VBLAST multi-carrier CDMA QR factorization
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参考文献10

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