Impact of Imperfect Channel State Information on ARQ Schemes over Rayleigh Fading Channels

Author

Le Cao ; Kam, Pooi Yuen ; Tao, Meixia

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore

fYear

2009

fDate

14-18 June 2009

Firstpage

1

Lastpage

5

Abstract

With imperfect channel state information (CSI) acquired by channel estimation at the receiver, the performances of automatic-repeat-request (ARQ) systems are evaluated as a function of the accuracy of channel estimation. A link between network-layer performances and physical-layer parameters is therefore established. We study in particular the good-put and the accepted packet error rate as a function of the channel estimation mean square error (MSE) and the factors which affect the MSE. The results enable us to analyze the optimum allocation of energy for data transmission and energy for pilot channel estimation so as to maximize the good-put.

Keywords

Rayleigh channels; automatic repeat request; channel estimation; mean square error methods; ARQ scheme; Rayleigh fading channel; automatic-repeat-request system; channel estimation; data transmission; energy optimum allocation; imperfect channel state information; mean square error method; network layer; physical-layer parameter; receiver; Automatic repeat request; Binary phase shift keying; Channel estimation; Channel state information; Data communication; Error analysis; Fading; Forward error correction; Mean square error methods; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2009. ICC '09. IEEE International Conference on

Conference_Location

Dresden

ISSN

1938-1883

Print_ISBN

978-1-4244-3435-0

Electronic_ISBN

1938-1883

Type

conf

DOI

10.1109/ICC.2009.5199066

Filename

5199066