• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Cooperative Incumbent System Protection MAC Protocol for Multi-channel Ad-hoc Cognitive Radio Networks

Vol. 5, No.11, November 29, 2011
10.3837/tiis.2011.11.006, Download Paper (Free):

Abstract

Cognitive radio (CR) MAC protocol provides access control of unused spectrum resources without causing interference to primary users. To achieve this goal, in this paper a TDMA based cooperative multi-channel cognitive radio MAC (MCR-MAC) protocol is proposed for wireless ad hoc networks to provide reliable protection for primary users by achieving cooperative detection of incumbent system signals around the communication pair. Each CR node maintains transmission opportunity schedules and a list of available channels that is employed in the neighbor discovery period. To avoid possible signal collision between incumbent systems and cognitive radio ad hoc users, we propose a simple but efficient emergency notification message exchanging mechanism between neighbor CR nodes with little overhead. Our simulation results show that the proposed MCR-MAC can greatly reduce interference with primary users and remarkably improve the network throughput.


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Cite this article

[IEEE Style]
Ke Yi, Nan Hao and Sang-Jo Yoo, "Cooperative Incumbent System Protection MAC Protocol for Multi-channel Ad-hoc Cognitive Radio Networks," KSII Transactions on Internet and Information Systems, vol. 5, no. 11, pp. 1976-1996, 2011. DOI: 10.3837/tiis.2011.11.006

[ACM Style]
Yi, K., Hao, N., and Yoo, S. 2011. Cooperative Incumbent System Protection MAC Protocol for Multi-channel Ad-hoc Cognitive Radio Networks. KSII Transactions on Internet and Information Systems, 5, 11, (2011), 1976-1996. DOI: 10.3837/tiis.2011.11.006