Effects of Channel Estimation Error on Full-Duplex Two-Way Networks

被引：60

作者：

Kim, Dongkyu ^{[1
]}

Ju, Hyungsik ^{[2
]}

Park, Sungsoo ^{[3
]}

Hong, Daesik ^{[1
]}

机构：

[1] Yonsei Univ, Sch Elect & Elect Engn, Seoul 120749, South Korea

[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 119077, Singapore

[3] Korea Railrd Res Inst, Uiwang 437757, South Korea

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2013年 / 62卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

Estimation error; full-duplex; multiple-input multiple-output (MIMO); two-way communications; MIMO; CAPACITY; RELAY;

D O I：

10.1109/TVT.2013.2265407

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：

Bidirectional communication systems based on full-duplex transmission have been proposed as a way to increase the ergodic capacity of multiantenna two-way networks. This type of system enables simultaneous exchange of data between two nodes via bidirectional use of spatial resources. However, when channel estimation error is present, each node experiences both desired-channel interference (DI) and echo-channel interference (EI). This paper investigates the effect of channel estimation errors on the ergodic capacities for bidirectional full-duplex transmission (BFD) using one of two combining schemes: maximal-ratio combining (MRC) or optimum combining (OC). We derive the ergodic capacities as closed-form expressions and quantify the effect of channel estimation errors on ergodic capacities for BFD with MRC (BFD-MRC) or OC (BFD-OC). Numerical results demonstrate that full-duplex transmission in two-way networks is an attractive option when channel estimation error is present.

引用

页码：4666 / 4672

页数：7

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