标题： 基于统计信道状态信息的上行MIMO天线选择与预编码 显示英文标题

标题： Statistical-CSI-Based Antenna Selection and Precoding in Uplink MIMO

摘要： 经典天线选择方案需要瞬时信道状态信息(CSI)。 这会导致系统中出现较高的信令开销。 本文提出了一种新颖的联合接收天线选择和预编码方案，用于多用户多输入多输出上行传输，该方案仅依赖于CSI的长期统计特性。 所提出的方案设计了切换网络和上行预编码器，使得系统在长期内的期望吞吐量最大化。 借助随机矩阵理论的结果，我们推导出了系统期望吞吐量的闭式表达式。 然后，我们开发了一个易于处理的迭代算法来解决吞吐量最大化问题，利用交替优化和极大化极大化(MM)技术。 数值结果证明了所提出方法的有效性及其相对于基线方法的优越性能。 显示英文摘要

摘要： Classical antenna selection schemes require instantaneous channel state information (CSI). This leads to high signaling overhead in the system. This work proposes a novel joint receive antenna selection and precoding scheme for multiuser multiple-input multiple-output uplink transmission that relies only on the long-term statistics of the CSI. The proposed scheme designs the switching network and the uplink precoders, such that the expected throughput of the system in the long term is maximized. Invoking results from the random matrix theory, we derive a closed-form expression for the expected throughput of the system. We then develop a tractable iterative algorithm to tackle the throughput maximization problem, capitalizing on the alternating optimization and majorization-maximization (MM) techniques. Numerical results substantiate the efficiency of the proposed approach and its superior performance as compared with the baseline.