Abstract
Since most low-complexity suboptimal MIMO detectors could not exploit a full receive diversity gain [68], the LR-based MIMO detectors are developed to provide a full receive diversity gain with low computational complexity [56, 69, 70]. The LR-based MIMO detector is first discussed in [21], then more LR-based MIMO detectors are proposed in [24]. It has been shown that the LR-based MIMO detector using the MMSE-SIC approach, namely the LR-based MMSE-SIC detector, approaches the ML performance. An overview of LR-based detection can be found in [26] and a soft-decision with the detection is discussed in [71].
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