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| Robust Efficient MIMO Detector |
| Hu Jun-feng①②; Zhang Hai-lin①; Yang Yuan① |
| ①State Key Laboratory of Integrate Services Network, Xidian University, Xi'an 710071, China; ②CETC No. 20 Research Institute, Xi'an 710068, China |
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Abstract The unbiased Minimum Mean-Square Error-Iterative Tree Search (MMSE-ITS) detector, which is known to be one of the most efficient Multi-Input Multi-Output (MIMO) detectors available, is improved by selectively augmenting partial length paths and by adding one bit complement vectors. Simulation and analysis results show that the improved detector provides better detection performance with lower complexity than the unbiased MMSE-ITS detector does. In addition, the improved .detector avoids the clipping operation completely and is robust to any MIMO channels.
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Received: 03 November 2008
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2009, Vol. 31 
