Comparison of two ARO protocols in a Rayleigh fading channel

Author

Chuang, J.C.-I.

Author_Institution

Bellcore, Red Bank, NJ

fYear

1990

fDate

6-9 May 1990

Firstpage

571

Lastpage

575

Abstract

Go-back-n (GBN) and selective repeat (SR) protocols for automatic repeat request (ARQ) protocols are compared in a frequency-nonselective Rayleigh fading channel. The channel coding used is assumed to be for error detection only; therefore, the throughput reduction due to coding is smaller than if the coding were used for error correction. Only practical ARQ protocols that can be implemented in real-time applications with finite-buffering capability are considered. Protocols implemented in software are used in a computer-simulated fading channel to study the throughput of these protocols for data communications. It is found that SR is significantly superior to GBN when fading rate is high; this advantage decreases as fading becomes slower. Error detection combined with ARQ and diversity selection can provide reliable data communications in a Rayleigh fading channel

Keywords

data communication systems; encoding; error detection codes; fading; protocols; radio systems; telecommunication channels; ARO protocols; Rayleigh fading channel; channel coding; computer-simulated fading channel; data communications; error detection; finite-buffering; frequency nonselective fading; go-back-N protocol; real-time applications; selective repeat protocol; software; throughput reduction; Automatic repeat request; Channel coding; Computer errors; Data communication; Fading; Frequency; Protocols; Rayleigh channels; Strontium; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1990 IEEE 40th

Conference_Location

Orlando, FL

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1990.110386

Filename

110386