Effect of channel estimation errors on MRC diversity in Rician fading channels

被引：20

作者：

Ma, Y ^{[1
]}

Schober, R

Pasupathy, S

机构：

[1] Iowa State Univ, Dept ECpE, Ames, IA 50011 USA

[2] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

[3] Univ Toronto, Commun Grp, Dept ECE, Toronto, ON M5S 3G4, Canada

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2005年 / 54卷 / 06期

关键词：

correlated fading; imperfect channel estimation; maximum ratio combining (MRC); Rician fading channels;

D O I：

10.1109/TVT.2005.853454

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：

We study the effect of imperfect channel estimation (ICE) on the performance of M-ary phase shift keying (M-PSK) with maximum ratio combining (MRC) in generalized Rician fading channels. First, we derive the error probability formulas for M-PSK with MRC and ICE in arbitrary Rician fading channels. Furthermore, we derive the effective receiver output signal-to-noise ratio (SNR) statistics and the outage probability, and analytically quantify the average SNR loss of M-PSK caused by ICE, assuming independent diversity branches. Finally, we point out a major approximation in a popular approach used in the literature to evaluate the adverse effect of ICE.

引用

页码：2137 / 2142

页数：6

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