Research Article
A Low Complexity MIMO-OFDM Detector with Interference Cancellation in Time-Varying Channels
@INPROCEEDINGS{10.4108/eai.15-8-2015.2261209, author={Yi-jin Pan and Hao Xu and Zhao-hui Yang and Ming Chen}, title={A Low Complexity MIMO-OFDM Detector with Interference Cancellation in Time-Varying Channels}, proceedings={10th EAI International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={9}, keywords={mimo-ofdm symbol detection inter-carrier interference channel estimation error}, doi={10.4108/eai.15-8-2015.2261209} }- Yi-jin Pan
Hao Xu
Zhao-hui Yang
Ming Chen
Year: 2015
A Low Complexity MIMO-OFDM Detector with Interference Cancellation in Time-Varying Channels
CHINACOM
IEEE
DOI: 10.4108/eai.15-8-2015.2261209
Abstract
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 MMSE- IC 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.