利用调制感知迭代均衡改进上行LTE性能

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2010-06-20 DOI:10.1109/SPAWC.2010.5671034

L. Krzymien, C. Schlegel, Shuai Zhang

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引用次数: 1

摘要

利用调制感知迭代矩阵反演方法，研究了MIMO SC-FDMA LTE多流传输的上行均衡问题。该均衡器共同消除码间(ISI)和流间干扰。可以观察到，与传统的频域均衡相比，可以获得增益。此外，与等功率分配相比，数据流之间不相等功率分配的接收器性能得到了改善，这与线性MMSE均衡的情况相反。结果表明，该方法可以实现信号共存，大大提高了系统的频谱效率。

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Improving uplink LTE performance with modulation-aware iterative equalization

Equalization for uplink MIMO SC-FDMA LTE multi-stream transmission is considered utilizing modulation-aware iterative matrix inversion method. This equalizer jointly removes inter-symbol (ISI) as well as inter-stream interference. It is observed that gains over traditional frequency-domain equalization can be obtained. Additionally, receiver performance for unequal power assignments between the data streams improves as compared to equal power allocation, which is opposite to the case of linear MMSE equalization. It is shown that signal co-existence is possible with this methodology, which considerably improves the system's spectral efficiency.

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来源期刊

2010 IEEE 11th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

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