一种利用MIMO技术改进TD-SCDMA系统的方法

杨晓辉; 李霜; 何丹丹; 李立华; 张平

doi:10.3724/SP.J.1146.2005.01295

一种利用MIMO技术改进TD-SCDMA系统的方法

doi: 10.3724/SP.J.1146.2005.01295

基金项目:

韩国LG电子和国家863计划(2004AA123180)资助课题

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出版历程
- 收稿日期: 2005-10-14
- 修回日期: 2006-03-30
- 刊出日期: 2007-06-19

A Method for TD-SCDMA System Improvement with MIMO Technology

摘要

摘要: 针对TD-SCDMA系统的特点，该文提出了一种基于midamble的TD-SCDMA系统MIMO模型。在此基础上将MMSE检测，Turbo迭代均衡与多天线处理技术相结合，提出了两种新的MIMO检测算法： MMSE-IC检测算法和MMSE-IC-Turbo检测算法。通过比较这两种算法以及3GPP中提到的RAKE-BLAST算法，从理论和仿真的角度分析了这几种算法在TD-SCDMA系统中的性能。结果表明MMSE-IC-Turbo检测算法性能最好，MMSE-IC检测算法次之。由于使用了MIMO技术， TD-SCDMA系统的容量大大提高。
- MIMO;Turbo迭代均衡;MMSE检测
Abstract: According to the features of TD-SCDMA system, a new MIMO structure of TD-SCDMA system based on midamble sequences is proposed. Furthermore, by combining Turbo iterative equalization and MIMO technology, MMSE-IC detection and MMSE-IC-Turbo detection are put forward. The two algorithms are measured with generally accepted RAKE-BLAST detection proposed in 3GPP. Simulation results show that MMSE-IC-Turbo detection performs best, and MMSE-IC also has better performance than the traditional algorithm. The capacity of TD-SCDMA system is largely improved by using the MIMO technology.

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参考文献(1)

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