Channel Imperfection Effects on THP Performance in a Slowly Time Varying MIMO Channels

摘要：

Tomlinson-Harashima Precoding (THP) is an attractive solution for a scenario where the transmission system employs multiple transmit antenna and multiple users with single antenna at the receiver. In spite of THPs good performance, it is very sensitive to erroneous Channel State Information (CSI). In this paper, the effect of channel imperfection on THP performance in a downlink scenario is investigated. An analytical method to calculate an upper bound of sum capacity for (Zero Forcing) ZF-THP in a slowly time varying fading channel is developed. Moreover, an approximate bound for capacity loss is determined that can be used for practical system design in an imperfect CSI scenario.

关键词： component Tomlinson-Harashima Precoding MIMO Channel Channel State Information Time-Varying Channel Achievable Rate

作者: H. Khaleghi Bizaki

作者单位: Iran University of Science and Technology (IUST) Tehran, Iran

会议类型: 国际会议

会议名称: 2010 IEEE International Conference Conferenhce on Wireless Communications,Networking and Information Security(2010 IEEE 无线通信、网络技术与信息安全国际会议 WCNIS)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2010-06-25（万方平台首次上网日期，不代表论文的发表时间）