Research Article
GPP-based Design of Soft MMSE MIMO Detection
@INPROCEEDINGS{10.1109/ChinaCom.2012.6417605, author={Jiang Zhou and Tao Peng and Ran Duan and Kuilin Chen}, title={GPP-based Design of Soft MMSE MIMO Detection}, proceedings={First International Workshop on C-RAN}, publisher={IEEE}, proceedings_a={C-RAN}, year={2012}, month={10}, keywords={gpp; sse; mmse; lte; mimo; soft decision; llr}, doi={10.1109/ChinaCom.2012.6417605} }- Jiang Zhou
Tao Peng
Ran Duan
Kuilin Chen
Year: 2012
GPP-based Design of Soft MMSE MIMO Detection
C-RAN
IEEE
DOI: 10.1109/ChinaCom.2012.6417605
Abstract
General-purpose processor (GPP), which is suitable for software radio processing because of its powerful processing capability and flexibility, has aroused industry-wide attention and exploration. By taking advantage of streaming single instruction multiple data extensions (SSE), this paper presents the GPP-based design of multi-input multi-output (MIMO) detection which is of high complexity in LTE downlink receiver. The performance simulation results illustrate that with dramatically reduced complexity soft minimum mean square error (MMSE) detection is able to approximate ML performance in low signal-to-noise-ratio (SNR), and about 4 dB lose in high SNR. The complexity comparison results show that the implementation of soft MMSE detection in parallel can reduce the processing time by about 86% compared with not in parallel.