A Low Complexity MIMO-OFDM Detector with Interference Cancellation in Time-Varying Channels

被引：0
|
作者：
Pan, Yi-jin [1 ]
Xu, Hao [1 ]
Yang, Zhao-hui [1 ]
Chen, Ming [1 ]
机构：
[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 211111, Jiangsu, Peoples R China
来源：
PROCEEDINGS OF THE 2015 10TH INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA CHINACOM 2015 | 2015年
关键词：
MIMO-OFDM; symbol detection; inter-carrier interference; channel estimation error; BLAST;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A low complexity multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) detection scheme is proposed to reduce the unexpected performance degradation from inter-carrier interference (ICI) and channel estimation errors in time-varying channels. On the basis of ICI analysis and channel estimation error model, we adopt the diagonal banded ICI structure to design the minimum square error criteria based detection scheme with interference cancellation (MMSE-IC). The complexity of proposed MMSEIC detection scheme is lower than that of MMSE-MIMO scheme and comparable to the turbo-equalization (TE-MMSE) scheme. The simulation results show that the MMSE-IC detection scheme outperforms the TE-MMSE scheme and can effectively avoid error propagation with the existence of ICI and channel estimation errors.
引用
收藏
页码：853 / 857
页数：5
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