Impact of Imperfect Channel State Information on Bi-Directional Communications With Relay Selection

Author

Ding, Zhiguo ; Leung, Kin K.

Author_Institution

Sch. of Electr., Electron. & Comput. Eng., Newcastle Univ., Newcastle upon Tyne, UK

Volume

59

Issue

11

fYear

2011

Firstpage

5657

Lastpage

5662

Abstract

In this correspondence, we study the effect of channel estimation error to the reception reliability for decode-forward based two-way relaying and physical layer network coding. In particular, we focus on the scenario where the channel estimation error is inversely proportional to signal-to-noise ratio (SNR). To such a scenario, analytic results have been developed to show that symbol error probability can approach zero by increasing SNR and extra diversity gains can still be achieved by applying relay selection.

Keywords

decode and forward communication; diversity reception; error statistics; network coding; telecommunication network reliability; wireless channels; bidirectional communication; channel estimation error; decode-forward based two-way relaying; diversity gain; imperfect channel state information; physical layer network coding; reception reliability; relay selection; signal-to-noise ratio; symbol error probability; Channel estimation; Error probability; Network coding; Physical layer; Relays; Signal to noise ratio; Upper bound; Cooperative diversity; imperfect channel state information; network coding;

fLanguage

English

Journal_Title

Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1053-587X

Type

jour

DOI

10.1109/TSP.2011.2163403

Filename

5970131