Impact of Imperfect Channel Estimation and Co-Channel Interference on Dual-Hop Relaying Systems

Author

Ikki, Salama S. ; Aïssa, Sonia

Author_Institution

Inst. Nat. de la Rech. Sci. (INRS), Univ. of Quebec, Montreal, QC, Canada

Volume

16

Issue

3

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

324

Lastpage

327

Abstract

In this letter, we analyze the performance of amplify-and-forward dual-hop cooperative diversity networks with imperfect channel estimation in the presence of co-channel interference. Exact closed-form expression is derived for the end-to-end signal-to-interference-plus-noise ratio (SINR), and an upper-bound of the exact SINR is introduced. In addition, exact closed-form expressions are obtained for the cumulative density function (CDF) of the upper-bound SINR and the average symbol error probability (ASEP). Furthermore, simple and accurate asymptotic expression for the ASEP is derived. Simulation results demonstrate the accuracy of the theoretical analysis.

Keywords

amplify and forward communication; channel estimation; cochannel interference; cooperative communication; diversity reception; probability; ASEP; CDF; amplify-and-forward dual-hop cooperative diversity networks; average symbol error probability; closed-form expression; cochannel interference; cumulative density function; dual-hop relaying systems; end-to-end signal-to-interference-plus-noise ratio; imperfect channel estimation; upper-bound SINR; Channel estimation; Error probability; Estimation; Interchannel interference; Relays; Signal to noise ratio; Dual-hop networks; amplify-and-forward; asymptotic analysis; co-channel interference; error probability; imperfect estimation;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.011312.112042

Filename

6134703