Performance of dual-branch diversity receiver based SR-ARQ in Rayleigh fading channel

Author

AL-Suhail, Ghaida A. ; Lamahewa, Tharaka A. ; Kennedy, Rodney A.

Author_Institution

Comput. Eng. Dept., Univ. of Basrah, Basrah, Iraq

fYear

2009

fDate

28-30 Sept. 2009

Firstpage

1

Lastpage

6

Abstract

Automatic repeat request (ARQ) schemes are quite effective for improving the throughput of system diversity in time-varying channel environments. In this paper, a dual-branch selection diversity receiver based selective repeat-ARQ scheme is investigated to evaluate the optimal throughput performance in terms of the average bit error rate in Rayleigh fading channels. Both uncorrelated and correlated antenna branches are considered. The numerical results shows the effect of optimal switching threshold on the throughput performance in case of switched diversity as well as the mobility effect of the selection combining diversity receiver when correlated antenna branches are present. A significant improvement in the system throughput of selection diversity outperforms that of switched diversity.

Keywords

Rayleigh channels; automatic repeat request; diversity reception; error statistics; radio receivers; receiving antennas; telecommunication switching; time-varying channels; Rayleigh fading channel; SR-ARQ; average bit error rate; correlated antenna branch; dual-branch diversity receiver; optimal switching threshold; optimal throughput performance; selective repeat-automatic repeat request scheme; time-varying channel environment; uncorrelated antenna branch; Automatic repeat request; Computer errors; Cyclic redundancy check; Diversity methods; Diversity reception; Error correction; Fading; Protocols; Receiving antennas; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communication Systems, 2009. ICSPCS 2009. 3rd International Conference on

Conference_Location

Omaha, NE

Print_ISBN

978-1-4244-4473-1

Electronic_ISBN

978-1-4244-4474-8

Type

conf

DOI

10.1109/ICSPCS.2009.5306398

Filename

5306398