An efficient ARQ system for mobile communications

Author

Kallel, S. ; Leung, C.

Author_Institution

Dept. of Electr. Eng., British Columbia Univ., Vancouver, BC, Canada

fYear

1989

fDate

1-3 May 1989

Firstpage

677

Abstract

Two modifications of an ARQ (automatic repeat request) scheme proposed by E.J. Weldon (IEEE Trans. on Comm., vol.COM-30, p.480-486, March 1982) for use in systems with limited receiver buffer is studied. Unlike Weldon´s scheme in which all erroneous data packets are discarded, the present schemes make use of copies of the data packet which may contain errors. A number of channel models are considered, namely a binary symmetric channel and a nonfading and a Rayleigh fading channel with additive white Gaussian noise. In all cases, it is found that the throughput can be substantially increased. Under poor channel conditions, the use of forward error correction can lead to further improvement

Keywords

error correction codes; mobile radio systems; ARQ system; Rayleigh fading channel; additive white Gaussian noise; automatic repeat request; binary symmetric channel; channel models; data packet; forward error correction; limited receiver buffer; mobile communications; nonfading channel; throughput; Additive white noise; Automatic repeat request; Decoding; Fading; Forward error correction; Mobile communication; Rayleigh channels; Throughput; Transmitters; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1989, IEEE 39th

Conference_Location

San Francisco, CA

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1989.40146

Filename

40146