DocumentCode :
3540427
Title :
An end-to-end delay metric for multi-rate wireless mesh networks with cooperative retransmission
Author :
Sen, Baha ; Libman, Lavy ; Xin Zhao ; Jha, Somesh
Author_Institution :
Sch. of Comput. Sci. & Eng., Univ. of New South Wales, Sydney, NSW, Australia
fYear :
2013
fDate :
21-24 Oct. 2013
Firstpage :
296
Lastpage :
299
Abstract :
The IEEE 802.11 MAC protocol performance degrades severely as the number of stations in the collision domain increases in a saturated network. Employing cooperative retransmission at the MAC layer provides a way to work around the performance limitations by exploiting the broadcast nature of wireless communication. This paper presents a new routing metric, termed Expected Cooperative Forwarding Delay (ECFD), with the aim of selecting a minimum end-to-end delay path for multi-hop multi-rate wireless mesh networks. Different from previously proposed cooperative-aware routing metrics such as ORETT, the ECFD metric is based not only on expected cooperative transmission time but accounts for queueing and backoff delays in the path selection process. We describe the design and implementation of ECFD, and conduct extensive simulation experiments in random topologies showing that, under various realistic network traffic patterns, the use of ECFD instead of ORETT and ETT significantly improves both end-to-end delay and throughput.
Keywords :
access protocols; cooperative communication; telecommunication network routing; telecommunication network topology; wireless LAN; wireless mesh networks; ECFD; ETT; IEEE 802.11 MAC protocol; ORETT; cooperative retransmission; cooperative-aware routing metrics; end-to-end delay metric; expected cooperative forwarding delay; multirate wireless mesh networks; network traffic pattern; path selection process; wireless communication; Delays; Relays; Routing; Throughput; Unicast; Wireless mesh networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Local Computer Networks (LCN), 2013 IEEE 38th Conference on
Conference_Location :
Sydney, NSW
ISSN :
0742-1303
Print_ISBN :
978-1-4799-0536-2
Type :
conf
DOI :
10.1109/LCN.2013.6761253
Filename :
6761253
Link To Document :
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