Orthogonalization Aided Distributed Scheduling for MU-MIMO BC with Adaptive Feedback

被引：0

作者：

Li Zhao ^{[1
]}

Yang Jiawei ^{[1
]}

机构：

[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian, Peoples R China

来源：

2009 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP 2009) | 2009年

关键词：

Multiuser MIMO; Broadcast channel; Scheduling; Precoding; Feedback; Orthogonalization; BROADCAST CHANNELS; SYSTEMS; USER;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, we introduce an orthogonalization aided distributed scheduling algorithm for multiuser MIMO broadcast channels (MU-MIMO BC). In this algorithm each mobile station (MS) selects transmission scheme, including beamforming (BF) and spatial multiplexing (SM) according to its channel state and feeds back channel state information (CSI) adaptively. On receiving CSI from each MS, the base station (BS) activates user subset and an orthogonalization based precoding scheme is applied to eliminate co-channel interference (CCI). The proposed user scheduling algorithm is carried out by MSs and BS corporately. The system feedback load depends on each MS's channel quality. Compared with existing methods, the proposed scheme can achieve high system capacity as well as better BER performance.

引用

页码：284 / 288

页数：5

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