Optimized Gain Control for Single-Frequency Relaying with Loop Interference

被引：165

作者：

Riihonen, Taneli ^{[1
]}

Werner, Stefan ^{[1
]}

Wichman, Risto ^{[1
]}

机构：

[1] Aalto Univ, Dept Signal Proc & Acoust, FI-02015 Helsinki, Finland

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 06期

基金：

芬兰科学院;

关键词：

Echo interference; echo suppression; gain control; land mobile radio cellular systems; radio repeaters;

D O I：

10.1109/TWC.2009.080542

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter derives new gain control schemes for an amplify-and-forward single-frequency relay link in which loop interference from the relay transmit antenna to the relay receive antenna has to be tolerated. The proposed gain control schemes take into account the effect of residual loop interference that remains after imperfect loop interference cancellation. As a result of our gain control strategy, the signal-to-interference and noise ratio can be maximized while, at the same time, transmit power is decreased. Finally, we evaluate system performance by deriving closed-form outage probability expressions for the gain control schemes.

引用

页码：2801 / 2806

页数：6

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