Relay-Assisted MIMO Multiuser Precoding in Fixed Relay Networks

摘要：

In this paper, downlink multiple input multiple output (MIMO) multiuser transmission using precoding in fixed relay networks is studied. We propose two relay-assisted MIMO multiuser precoding models. For the first model, multiuser precoding is performed at base station (BS). The fixed relay processes the received signal and forwards it, whicht is amplifyand- forward. While for the second model, the multiuser precoding is done at relay. Thus, detect-and-forward or decodeand- forward transmission can be used. Based on these models, some multiuser precoding algorithms are investigated. Our simulation results show that fixed relay offers significant gain. And our system architectures give the means on how to utilize fixed relay in MIMO multiuser system.

关键词： MIMO relay multiuser precoding

作者: Jiang Yu Danpu Liu Changchuan Yin Guangxin Yue

作者单位: Key Laboratory of Universal Wireless Communication, Ministry of Education Beijing University of Posts and Telecommunications Beijing, P.R. China

会议类型: 国际会议

会议名称: 第三届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 上海

会议语种:英文

在线出版日期: 2007-09-21（万方平台首次上网日期，不代表论文的发表时间）