Title :
Multichannel Wormhole Switching vs. CSMA/CA for Wireless Mesh Networking
Author :
McTasney, Robert ; Grunwald, Dirk ; Sicker, Douglas
Author_Institution :
Univ. of Colorado at Boulder, Boulder
fDate :
March 31 2008-April 3 2008
Abstract :
This paper presents a method for improving the performance of Wireless Mesh Networks (WMN) through the use of multichannel wormhole switching. Current WMNs based on contention-based medium access control (MAC) such as ";WiFi"; suffer from high latency and low resource utilization because of competition for the shared single-channel medium. Through simulation we compare WMNs using contention-based wireless nodes versus WMNs using contention-free ";flit-relay"; wireless nodes. We demonstrate our ";flit-relay"; design as a promising low latency alternative to CSMA/CA for providing WMNs. The approximate 800-fold improvement in latency over WMNs using wireless nodes with a contention-based MAC and competitive setup times for VoIP support the argument for more development on pursuing this technology.
Keywords :
Internet telephony; access protocols; carrier sense multiple access; radio networks; telecommunication switching; CSMA; MAC; VoIP; WMN; carrier sense multiple access; medium access control; multichannel wormhole switching; wireless mesh networking; Bandwidth; Delay; Interference; Media Access Protocol; Multiaccess communication; Optical fiber networks; Peer to peer computing; Physical layer; Throughput; Wireless mesh networks;
Conference_Titel :
Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-1997-5
DOI :
10.1109/WCNC.2008.373
