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WSN15-2: J-CAR: an Efficient Channel Assignment and Routing Protocol for Multi-channel Multi-interface Mobile Ad Hoc Networks

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3 Author(s)
Hon Sun Chiu ; Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong ; Yeung, K.L. ; King-Shan Lui

We propose an efficient joint channel assignment and routing protocol (J-CAR) for multi-channel multi-interface mobile ad hoc networks (MANETs). Aiming at overcoming the limitations of the existing channel assignment and routing algorithms, J-CAR negotiates a channel at each active link during the route setup process. It has the following major features: (a) a pre-determined common control channel is used by every node for routing and channel negotiation; (b) control packets for data transmission (RTS, CTS & ACK) are carried by the associated data channels; (c) the spare capacity on the control channel can be used for data transmission; (d) an interface is free to change its working modes between send and receive; and (e) an interface can tune to any data channels for data sending or receiving at the cost of switching overhead. With J-CAR, a more flexible assignment of interfaces, channels, and the working mode of each interface can be rendered. The performance gain brought by J-CAR is substantiated by extensive simulation results.

Published in:

Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE

Date of Conference:

Nov. 27 2006-Dec. 1 2006