Performance of hybrid-ARQ coding schemes over M-QAM equalized mobile radio channels

Author

Gutiérrez, Fernando ; Valdovinos, Antonio

Author_Institution

Dept. de Ingenieria Electron. y Comunicaciones, Zaragoza Univ., Spain

Volume

5

fYear

1999

fDate

1999

Firstpage

2918

Abstract

In this work, we focus on the performance of ARQ (automatic repeat request) error control strategies over mobile radio channels with M-QAM modulation. This type of error control is used to detect errors, asking for a retransmission when errors are detected. It is seen that single ARQ schemes are not suitable for mobile environments, making it necessary to consider other techniques for equalization in order to cope with ISI (intersymbol interference). Using an equalizer does not improve significantly the performance, so hybrid-ARQ (H-ARQ) schemes must be evaluated. The performance is obtained in terms of throughput versus signal-to-noise ratio

Keywords

automatic repeat request; channel coding; equalisers; error correction codes; error detection codes; interference suppression; intersymbol interference; mobile radio; quadrature amplitude modulation; telecommunication traffic; ISI; M-QAM; automatic repeat request; equalized channels; error control; error detection; hybrid-ARQ coding; intersymbol interference; mobile radio; performance; retransmission; signal-to-noise ratio; throughput; Automatic repeat request; Delay; Equalizers; Error correction; Error correction codes; Filters; Interference; Land mobile radio; Signal to noise ratio; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.800321

Filename

800321