MIMO系统中TH预编码的研究与改进

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC) Pub Date : 2015-09-01 DOI:10.1109/IMCCC.2015.220

Liu Hanchao, Li Xin, Xu Zhenlong, Zhang Guojun

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引用次数: 0

摘要

TH预编码可以有效地消除MIMO系统中信道间的干扰，提高系统的可靠性。与线性预编码相比，系统的容量也有了相当大的提高。但是仍然存在一些问题。本文对传统的TH预编码进行了改进。信道矩阵H用GMD分解。并行MIMO子信道的信噪比趋于一致，各并行MIMO子信道的性能差异很小。这不仅在误码率性能上有一定的优势，而且可以对并行MIMO子信道实现相同的调制解调方案。它降低了处理的复杂性。

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Research and Improvement of TH Precoding in MIMO System

TH precoding can effectively eliminate the interference between the channels in the MIMO system, improve the reliability of the system. Compared with the linear precoding, the capacity of the system also has a considerable increase. But there are still some problems. In this paper, the traditional TH precoding is improved. The channel matrix H is decomposed by GMD. The SNR of the parallel MIMO sub channel becomes the same and the difference of each parallel MIMO sub channel performance is small. Not only this has certain advantages in the performance of BER, but also we can implement the same modulation and demodulation schemes to parallel MIMO sub channels. It reduce the complexity of processing.

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来源期刊

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC)

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