Outage Analysis of Distributed Scheme on Opportunistic Relaying with Limited CSI

Author

Jiang, Haifang ; Zhang, Sihai ; Zhou, Wuyang

Author_Institution

Dept. of Electron. Eng. & Inf. Sci. (EEIS), Univ. of Sci. & Technol. of China (USTC), Hefei, China

Volume

15

Issue

9

fYear

2011

fDate

9/1/2011 12:00:00 AM

Firstpage

935

Lastpage

937

Abstract

In this letter, we propose a distributed scheme on opportunistic amplify-and-forward (AF) relaying to minimize the system outage probability with low feedback overhead. Only the subset of relays report the calculated outage probability information to the source based on the outage probability threshold with the limited channel state information (CSI). We present the approximate expressions for the system outage probability under two scenarios, the statistical CSI and the statistical quantized CSI of the relay-destination links, respectively. Numerical results indicate that the derived analytic results are reasonable and the outage performance is better for the statistical quantized CSI case with acceptable feedback cost.

Keywords

amplify and forward communication; cooperative communication; probability; distributed scheme; feedback cost; limited CSI; limited channel state information; low feedback overhead; opportunistic amplify and forward relaying; relay destination links; system outage probability; Bit error rate; Channel state information; Fading; Indexes; Probability; Relays; Signal to noise ratio; Opportunistic relaying; distributed; limited CSI; outage probability;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.071211.110394

Filename

5959251