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A Compact Soft Symbol Estimation for Iterative MIMO Detection
IEEE Wireless Communications Letters ( IF 6.3 ) Pub Date : 2020-10-01 , DOI: 10.1109/lwc.2020.3004846
Satya Chan , Meixiang Zhang , Sooyoung Kim

Minimum mean squared error (MMSE)-based soft iterative detection schemes have been widely considered for coded multiple antenna systems due to their high performance gain with reasonable complexity. This letter presents compact universal equations to estimate soft symbol values for $2^{K}$ -ary QAM and PSK schemes that can be applied to any MMSE-based iterative detection. The evaluation results investigated in this letter reveal that the proposed methods reduce the computational complexity by more than an order without degrading the performance.

中文翻译:

用于迭代 MIMO 检测的紧凑软符号估计

由于其高性能增益和合理的复杂性,基于最小均方误差 (MMSE) 的软迭代检测方案已被广泛考虑用于编码多天线系统。这封信提供了紧凑的通用方程来估计软符号值 $2^{K}$ -ary QAM 和 PSK 方案,可应用于任何基于 MMSE 的迭代检测。这封信中调查的评估结果表明,所提出的方法在不降低性能的情况下将计算复杂度降低了一个数量级以上。
更新日期:2020-10-01
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