A New Antenna Selection Scheme for MIMO–NOMA Systems with Multiple-Antenna Users  

作　　者：Ehsan Alemzadeh Amir Masoud Rabiei 

机构地区：[1]School of Electrical and Computer Engineering,College of Engineering,University of Tehran,Tehran,Iran

出　　处：《China Communications》2025年第2期160-172,共13页中国通信(英文版)

摘　　要：Non-orthogonal multiple access(NOMA)is a promising technology for the next generation wireless communication networks.The benefits of this technology can be further enhanced through deployment in conjunction with multiple-input multipleoutput(MIMO)systems.Antenna selection plays a critical role in MIMO–NOMA systems as it has the potential to significantly reduce the cost and complexity associated with radio frequency chains.This paper considers antenna selection for downlink MIMO–NOMA networks with multiple-antenna basestation(BS)and multiple-antenna user equipments(UEs).An iterative antenna selection scheme is developed for a two-user system,and to determine the initial power required for this selection scheme,a power estimation method is also proposed.The proposed algorithm is then extended to a general multiuser NOMA system.Numerical results demonstrate that the proposed antenna selection algorithm achieves near-optimal performance with much lower computational complexity in both two-user and multiuser scenarios.

关 键 词：antenna selection MIMO NOMA power allocation 

分 类 号：TN929.5[电子电信—通信与信息系统] TN820[电子电信—信息与通信工程]