DocumentCode :
1990076
Title :
Q-HWMP: Improving End-to-End QoS for 802.11s Based Mesh Networks
Author :
Ben-othman, Jalel ; Mokdad, Lynda ; Cheikh, Mohamed Ould
Author_Institution :
Lab. CNRS-Prism, Univ. of Versailles, Versailles, France
fYear :
2010
fDate :
6-10 Dec. 2010
Firstpage :
1
Lastpage :
6
Abstract :
Wireless mesh network (WMNs) are an emerging technology, presented mainly as a way to build a multi-hop network based on an infrastructure. IEEE has developed a draft 802.11s describing the enhancement of the IEEE 802.11 for mesh networks. This new standard aims to create a new wireless configuration that manages the topology, the quality of radio link and the routing. For routing, two path selection protocols HWMP (Hybrid Wireless Mesh Protocol) and RA-OLSR (Radio-Aware Optimized Link State Routing) are considered. The both routing protocols are inadequate for multimedia applications, such as video conferencing, which is often requiring guaranteed Quality of Service (QoS). QoS routing requires not only finding a best route from a source to a destination according to some criteria (like AirTime metric, hop numbers, etc.) , which is the case of HWMP, but a route that satisfies the end-to-end QoS requirement, often given in terms of bandwidth or delay. This paper tackles this last point by improving the HWMP protocol that handles QoS for real time applications. The goal of the proposed enhancement is to increase the bandwidth utilization and to avoid any network congestions. The method is based on the evaluation of QoS parameters as end-to-end delay or remaining bandwidth and to determine if they can fit with the real time application. Simulation results show that the proposed solution outperform classical HWMP.
Keywords :
quality of service; routing protocols; telecommunication standards; wireless LAN; wireless mesh networks; 802.11s based mesh networks; IEEE 802.11; Q-HWMP; RA-OLSR; draft 802.11s; end-to-end QoS; hybrid wireless mesh protocol; multi-hop network; multimedia applications; radio link; radio-aware optimized link state routing; routing protocols; video conferencing; wireless mesh network; Delay; IEEE 802.11 Standards; Quality of service; Routing; Routing protocols;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location :
Miami, FL
ISSN :
1930-529X
Print_ISBN :
978-1-4244-5636-9
Electronic_ISBN :
1930-529X
Type :
conf
DOI :
10.1109/GLOCOM.2010.5683584
Filename :
5683584
Link To Document :
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