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A novel and low complex detection method for MIMO channels: A new perspective

机译：一种新颖且低复杂度的MIMO信道检测方法：一个新的视角

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摘要

In this paper, we have proposed a new and simple method for detection of transmitted symbols in both SISO and MIMO channels. The energy of received signals is the criterion which help us to limit the search space. Perfect knowledge of channel state information (CSI) in the receiver is assumed. So, all possible levels of energy can be determined easily. Since we have assumed the channel to be quasi-static, the computation of energy levels is done only once. Based on the closest energy level and the points which lie in the search space, decision can be made. In other words, we have constrained our search space to a new and smaller space with different levels of energy. Simulation results show approximately the same performance as the maximum-likelihood (ML) detector in high signal-to-noise ratios (SNRs) with a considerable reduction in the computational complexity.
机译：在本文中，我们提出了一种新的简单方法来检测SISO和MIMO信道中的传输符号。接收信号的能量是帮助我们限制搜索空间的标准。假定对接收器中的信道状态信息（CSI）有全面的了解。因此，可以轻松确定所有可能的能量水平。由于我们假设通道是准静态的，因此能级的计算仅进行一次。基于最接近的能级和位于搜索空间中的点，可以做出决定。换句话说，我们已经将搜索空间限制为具有不同能量级别的新的较小的空间。仿真结果表明，在高信噪比（SNR）中，与最大似然（ML）检测器的性能大致相同，并且计算复杂度大大降低。

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