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Provisioning delay sensitive services in cognitive radio networks with multiple radio interfaces

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2 Author(s)
Hasan, R. ; Gippsland Sch. of Inf. Technol., Monash Univ., Churchill, VIC, Australia ; Murshed, M.

Cognitive radio network (CRN) users are inherently expected to experience widely-varied delays due to the uncertainty in wireless channel availability. Supporting delay sensitive real-time services through CRNs, so that visitors are allowed to experience full-scale networking services by opportunistically sharing the spectrum from a number of existing networks without impacting on the primary users, thus remains a challenging task. This paper presents a novel technique to provision QoS guarantee for delay-sensitive services in CRNs having secondary users equipped with multiple radio interfaces. The technique relies on modeling spectrums holes from multiple primary networks through a resultant channel to enable implementing a single server queuing model with random service interruption. Simulation results using ns-2.33 show that using multiple radio interfaces has sheer strength to reduce CRN delay with fewer number of primary channel sensing.

Published in:

Wireless Communications and Networking Conference (WCNC), 2011 IEEE

Date of Conference:

28-31 March 2011

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