In this paper, we propose a near-optimal multiple-input multiple-output (MIMO) detection algorithm with low and fixed complexity, which is based on the fixed-complexity sphere decoder (FSD). By employing the lattice reduction (LR) to the FSD, the computational complexity is reduced considerably while maintaining the near-optimal bit-error-rate (BER) performance. Although the application of LR to the FSD is not straightforward, an efficient solution is proposed in this paper. The numerical results demonstrate that the computational complexity of the proposed algorithm is reduced by about 43.02% and 76.49% for 64-QAM and 256-QAM compared to the optimal FSD while the performance degradation is negligible.
|Title of host publication||2015 International Symposium on Consumer Electronics, ISCE 2015|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Publication status||Published - 2015 Aug 4|
|Event||IEEE International Symposium on Consumer Electronics, ISCE 2015 - Madrid, Spain|
Duration: 2015 Jun 24 → 2015 Jun 26
|Name||Proceedings of the International Symposium on Consumer Electronics, ISCE|
|Other||IEEE International Symposium on Consumer Electronics, ISCE 2015|
|Period||15/6/24 → 15/6/26|
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© 2015 IEEE.
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