Quality of service in Ad Hoc 802.11 networks
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Computer Society |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65002003000200005 |
Resumo: | This paper presents major quality of service problems in IEEE 802.11 networks. It analyzes unfairness in bandwidth sharing and TCP instability in MAC 802.11. Moreover, differentiation techniques for providing medium access priority are evaluated. Simulation results show that the ad hoc routing protocol has a great influence on unfairness and on the TCP throughput instability due to succeeding routing failures originated by the MAC sublayer. Differentiation mechanism results show that DIFS-based schemes can provide a fine-grained throughput differentiation compared to backoff-based ones. Nevertheless, backoff-based schemes are more effective in providing latency differentiation, which is important for real-time traffic. |
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Journal of the Brazilian Computer Society |
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Quality of service in Ad Hoc 802.11 networksAd hoc networksIEEE 802.11. Quality of ServiceThis paper presents major quality of service problems in IEEE 802.11 networks. It analyzes unfairness in bandwidth sharing and TCP instability in MAC 802.11. Moreover, differentiation techniques for providing medium access priority are evaluated. Simulation results show that the ad hoc routing protocol has a great influence on unfairness and on the TCP throughput instability due to succeeding routing failures originated by the MAC sublayer. Differentiation mechanism results show that DIFS-based schemes can provide a fine-grained throughput differentiation compared to backoff-based ones. Nevertheless, backoff-based schemes are more effective in providing latency differentiation, which is important for real-time traffic.Sociedade Brasileira de Computação2003-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65002003000200005Journal of the Brazilian Computer Society v.9 n.1 2003reponame:Journal of the Brazilian Computer Societyinstname:Sociedade Brasileira de Computação (SBC)instacron:UFRGS10.1590/S0104-65002003000200005info:eu-repo/semantics/openAccessRubinstein,Marcelo G.Rezende,José Ferreira deeng2004-09-14T00:00:00Zoai:scielo:S0104-65002003000200005Revistahttps://journal-bcs.springeropen.com/PUBhttps://old.scielo.br/oai/scielo-oai.phpjbcs@icmc.sc.usp.br1678-48040104-6500opendoar:2004-09-14T00:00Journal of the Brazilian Computer Society - Sociedade Brasileira de Computação (SBC)false |
dc.title.none.fl_str_mv |
Quality of service in Ad Hoc 802.11 networks |
title |
Quality of service in Ad Hoc 802.11 networks |
spellingShingle |
Quality of service in Ad Hoc 802.11 networks Rubinstein,Marcelo G. Ad hoc networks IEEE 802.11. Quality of Service |
title_short |
Quality of service in Ad Hoc 802.11 networks |
title_full |
Quality of service in Ad Hoc 802.11 networks |
title_fullStr |
Quality of service in Ad Hoc 802.11 networks |
title_full_unstemmed |
Quality of service in Ad Hoc 802.11 networks |
title_sort |
Quality of service in Ad Hoc 802.11 networks |
author |
Rubinstein,Marcelo G. |
author_facet |
Rubinstein,Marcelo G. Rezende,José Ferreira de |
author_role |
author |
author2 |
Rezende,José Ferreira de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Rubinstein,Marcelo G. Rezende,José Ferreira de |
dc.subject.por.fl_str_mv |
Ad hoc networks IEEE 802.11. Quality of Service |
topic |
Ad hoc networks IEEE 802.11. Quality of Service |
description |
This paper presents major quality of service problems in IEEE 802.11 networks. It analyzes unfairness in bandwidth sharing and TCP instability in MAC 802.11. Moreover, differentiation techniques for providing medium access priority are evaluated. Simulation results show that the ad hoc routing protocol has a great influence on unfairness and on the TCP throughput instability due to succeeding routing failures originated by the MAC sublayer. Differentiation mechanism results show that DIFS-based schemes can provide a fine-grained throughput differentiation compared to backoff-based ones. Nevertheless, backoff-based schemes are more effective in providing latency differentiation, which is important for real-time traffic. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-11-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65002003000200005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-65002003000200005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-65002003000200005 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Computação |
publisher.none.fl_str_mv |
Sociedade Brasileira de Computação |
dc.source.none.fl_str_mv |
Journal of the Brazilian Computer Society v.9 n.1 2003 reponame:Journal of the Brazilian Computer Society instname:Sociedade Brasileira de Computação (SBC) instacron:UFRGS |
instname_str |
Sociedade Brasileira de Computação (SBC) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Journal of the Brazilian Computer Society |
collection |
Journal of the Brazilian Computer Society |
repository.name.fl_str_mv |
Journal of the Brazilian Computer Society - Sociedade Brasileira de Computação (SBC) |
repository.mail.fl_str_mv |
jbcs@icmc.sc.usp.br |
_version_ |
1754734669597769728 |