On Channel Selection Strategies for Multi-Channel MAC Protocols in Wireless Ad Hoc Networks

Author

Wormsbecker, I. ; Williamson, Carey

Author_Institution

Dept. of Comput. Sci., Calgary Univ., Alta.

fYear

2006

fDate

19-21 June 2006

Firstpage

212

Lastpage

220

Abstract

Multi-channel medium access control (MAC) protocols have recently been proposed to improve the performance of the transmission control protocol (TCP) in IEEE 802.11 wireless ad hoc networks. This paper uses ns-2 network simulations to study the impact of channel selection techniques on multi-channel MAC protocol performance, particularly for the bi-directional multi-channel MAC protocol. Three channel selection strategies are studied: random, lowest channel first, and soft channel reservation. The simulation results identify four distinct scenarios in which data channel frame losses can occur. Among the channel selection strategies evaluated, the soft channel reservation technique is the most effective for the missed reservation problem. This channel selection strategy reduces link-layer data frame losses and provides higher TCP throughput compared to the other channel selection approaches

Keywords

access protocols; ad hoc networks; channel allocation; transport protocols; wireless channels; IEEE 802.11 wireless ad hoc network; TCP; channel selection strategy; medium access control; multichannel MAC protocol; ns-2 network simulation; transmission control protocol; Access protocols; Ad hoc networks; Communication standards; Intelligent networks; Media Access Protocol; Mobile ad hoc networks; Spread spectrum communication; Throughput; Transport protocols; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile Computing, Networking and Communications, 2006. (WiMob'2006). IEEE International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0494-0

Type

conf

DOI

10.1109/WIMOB.2006.1696348

Filename

1696348