论文标题
具有适用于MIMO检测的优质自适应投影亚级别方法
Superiorized Adaptive Projected Subgradient Method with Application to MIMO Detection
论文作者
论文摘要
在本文中，我们表明自适应投射的亚级别方法（APSM）是有界扰动弹性的。为了说明该结果的潜在应用，我们提出了一个用于MIMO检测的设定理论框架，并根据优越的APSM设计算法。各种低复杂性MIMO检测算法在I.I.D.上具有出色的性能。高斯通道，但如果考虑逼真的通道模型（例如相关通道），通常会导致高性能损失。与现有的低复杂性迭代探测器（例如个体最佳的大型MIMO近似消息传递（IO-LAMA））相比，所提出的算法可以达到相对于相关通道的符号误差率明显较低。同时，所提出的方法不需要矩阵倒置，它们的复杂性与IO-LAMA相似。
In this paper, we show that the adaptive projected subgradient method (APSM) is bounded perturbation resilient. To illustrate a potential application of this result, we propose a set-theoretic framework for MIMO detection, and we devise algorithms based on a superiorized APSM. Various low-complexity MIMO detection algorithms achieve excellent performance on i.i.d. Gaussian channels, but they typically incur high performance loss if realistic channel models (e.g., correlated channels) are considered. Compared to existing low-complexity iterative detectors such as individually optimal large-MIMO approximate message passing (IO-LAMA), the proposed algorithms can achieve considerably lower symbol error ratios over correlated channels. At the same time, the proposed methods do not require matrix inverses, and their complexity is similar to IO-LAMA.
