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# Delay Comparison of Automatic Repeat Request Assisted Butterfly Networks

Qin, Yang and Yang, Lie-Liang (2010) Delay Comparison of Automatic Repeat Request Assisted Butterfly Networks. The Seventh International Symposium on Wireless Communications Systems (ISWCS), United Kingdom. 19 - 22 Sep 2010.

Record type: Conference or Workshop Item (Paper)

## Abstract

The average burst delay and the standard deviation (SD) of burst delay in the context of the Butterfly networks are investigated and compared, when three types of automatic repeat request (ARQ) schemes, namely, the stop-and-wait ARQ (SW-ARQ), go-back-$N$ ARQ (GBN-ARQ) and the selective-repeat ARQ (SR-ARQ), are considered. We assume that packets in a burst arrive at a constant rate and that the packet error rate (PER) is the same for all the links. Our studies show that, among the three ARQ schemes, the SW-ARQ scheme yields the highest average burst delay and also the highest SD of burst delay, while the SR-ARQ scheme is capable of attaining the lowest delay and also the lowest SD of burst delay. At very low PER, the GBN-ARQ may achieve a similar delay performance as the SR-ARQ. However, as the PER increases, the delay performance of the GBN-ARQ converges to that of the SW-ARQ.

Text
88-30100.pdf - Version of Record

Published date: September 2010
Additional Information: Event Dates: 19 - 22 September 2010
Venue - Dates: The Seventh International Symposium on Wireless Communications Systems (ISWCS), United Kingdom, 2010-09-19 - 2010-09-22
Organisations: Southampton Wireless Group

## Identifiers

Local EPrints ID: 272630
URI: http://eprints.soton.ac.uk/id/eprint/272630
PURE UUID: 87c718c0-a06d-405d-8619-50495d67ab69
ORCID for Lie-Liang Yang: orcid.org/0000-0002-2032-9327

## Catalogue record

Date deposited: 05 Aug 2011 14:53

## Contributors

Author: Yang Qin
Author: Lie-Liang Yang