燕山大学学报2024，Vol.48Issue(4)：339-348,10.DOI:10.3969/j.issn.1007-791X.2024.04.006
MIMO干扰对齐中低开销反馈拓扑设计
A feedback topology with low overhead in MIMO interference alignment
摘要
Abstract
Interference alignment is an important technique for mitigating interference and enhancing the capacity of wireless communication networks.However,to implement interference alignment,the transmitters need to know the global channel state information,which incurs substantial overhead.In order to tackle this challenge,a successive interference alignment feedback topology for the K-user MIMO interference channel is presented in this study.In the successive interference alignment feedback topology,multiple pairs of interference alignment transmitters are designated based on the number of users.By sequentially aligning interference signals,this approach can effectively reduce the channel state information overhead.Compared with existing feedback topologies,the proposed successive interference alignment feedback topology is capable of implementing interference alignment with the lowest channel state informationoverhead when K≥6,leading to the fact that it is more suitable for the practical application of interference alignment.关键词
干扰对齐/信道状态信息/MIMO干扰信道/反馈拓扑Key words
interference alignment/channel state information/MIMO interference channel/feedback topology分类
电子信息工程引用本文复制引用
陈省伟,靳进..MIMO干扰对齐中低开销反馈拓扑设计[J].燕山大学学报,2024,48(4):339-348,10.基金项目
河南省重点研发专项项目(231111212400) （231111212400）
河南省重点研发与推广专项项目(232102211067) （232102211067）
