DocumentCode :
2498260
Title :
A Reliable Low-Overhead MAC Protocol for Multi-Channel Wireless Mesh Networks
Author :
Zhou, Hairong ; Yeh, Chihsiang ; Mouftah, Hussein T.
Author_Institution :
Queen´´s Univ., Kingston
fYear :
2007
fDate :
26-30 Nov. 2007
Firstpage :
1370
Lastpage :
1374
Abstract :
This paper proposes a multi-channel medium access control (MAC) protocol for wireless mesh networks (WMNs) by using busy tones to prevent data packet collisions at data channels. Multi-channel MAC schemes can achieve higher network throughput than single channel MAC schemes in multi- hop wireless networks. It is especially appealing to exploit multiple channels in WMNs which has high capacity requirement to support backbone multimedia applications. Most previously proposed MAC protocols make use of the RTS/CTS mechanism to deal with data packet collisions caused by exposed/hidden terminal problems in multi-hop environment. However, when multiple channels are used for data transmissions, the traditional RTS/CTS mechanism can no longer handle the exposed/hidden terminal successfully. By investigating the special features of WMN architecture, we apply the busy tone solution into the medium access control mechanism for WMNs, in which mesh nodes have no limit on power consumption. In this paper, we clearly presented the idea and operation of our proposed multichannel MAC protocol for WMNs. Comprehensive simulations are conducted to investigate the effects of various factors on the system performance. Also, the performance of our proposed mechanism is compared with that of previous RTS/CTS-based MAC protocols.
Keywords :
access protocols; radio networks; telecommunication network reliability; telecommunication network topology; wireless channels; MAC protocol; data packet collision; medium access control; multichannel wireless mesh network; Access protocols; Data communication; Media Access Protocol; Mobile ad hoc networks; Protection; Spread spectrum communication; Transceivers; Transmitters; Wireless application protocol; Wireless mesh networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
Type :
conf
DOI :
10.1109/GLOCOM.2007.263
Filename :
4411173
Link To Document :
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