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Cooperative routing protocol in cognitive radio ad-hoc networks

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2 Author(s)
Jang-Ping Sheu ; Dept. of Comput. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan ; In-Long Lao

Cognitive radio (CR) technology enables the opportunistic use of the vacant licensed frequency bands, thereby improving the spectrum utilization. Therefore, considering end-to-end throughput in CR ad-hoc networks is an important research issue because the availability of local spectrum resources may change frequently with the time and locations. In this paper, we propose a cooperative routing protocol in CR ad-hoc networks. An on-demand routing protocol is used to find an end-to-end minimum cost path between a pair of source and destination. The simulation results show that our proposed cooperative routing protocol not only obtains higher end-to-end throughput, but also reduces the end-to-end delay and the amount of control messages compared to previous work.

Published in:

Wireless Communications and Networking Conference (WCNC), 2012 IEEE

Date of Conference:

1-4 April 2012