基于增量和减量选择规则的天线选择与链路自适应  

Antenna Selection and Link Adaptation Based on Incremental and Decremental Selection Rules

作　　者：杜文龙 黄余 DU Wenlong;HUANG Yu(School of Computer and Communication,Jiangsu Vocational College of Electronics and Information,Huai'an Jiangsu 223003,China;School of Advanced Students,Saint Louis University,Baguio 2600,Philippines)

机构地区：[1]江苏电子信息职业学院计算机与通信学院,江苏淮安223003 [2]圣路易斯大学研究生院,菲律宾碧瑶2600

出　　处：《电子器件》2021年第4期969-975,共7页Chinese Journal of Electron Devices

基　　金：江苏省重点技术创新项目导向计划(苏工信创新[2021]112-1657);江苏省“333工程”科研项目(BRA2018315)。

摘　　要：针对不相关MIMO和相关MIMO信道系统,提出了基于增量和减量选择规则的联合天线选择和链路自适应算法。具体实现是首先构建出受系统施加的总吞吐量和功率约束的MIMO系统的联合天线选择和链路自适应最优化问题;然后对于不相关MIMO信道系统,提出了带链路自适应的增量和减量的天线选择规则,增量选择将所需的天线递归地添加到初始为空的有源天线集合中,减量选择将不需要的天线递归地从初始为满的天线集合中移除,对于相关MIMO信道系统,基于慢变信道协方差信息,提出了一种带链路自适应的增量天线选择规则,从而得到2种情形在总吞吐量和功率约束下的误码率最小化;实验结果表明,提出的算法相比于传统的天线选择算法不仅有更低的误码率,而且对于不同反馈延迟有着较好的鲁棒性。A joint antenna selection and link adaptation algorithm based on incremental and decremental selection rules is proposed for unrelated MIMO and correlated MIMO channel systems.Firstly,the joint antenna selection and link adaptive optimization of MIMO system with total throughput and power constraints imposed by the system is constructed.Then,for the unrelated MIMO channel system,the incremental and decremental antenna selection rules with link adaptation are proposed.The incremental selection adds the desired antennas recursively to an initially empty active antenna set,the decremental selection removes undesired antennas recursively from an initially full antenna set.For the correlated MIMO channel systems,an incremental antenna selection rule with link adaptation is proposed based on the slowly varying channel covariance information.Thus,the bit error rate minimization of the two cases under the total throughput and power constraints is obtained.The experimental results show that the proposed algorithm not only has a lower bit error rate than the traditional antenna selection algorithm,but also has better robustness to different feedback delays.

关 键 词：MIMO信道系统 空间复用 信道矩阵 天线选择 链路自适应 QR-分解 误码率 

分 类 号：TN919.3[电子电信—通信与信息系统]