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A Dynamic QoS Model for Improving the Throughput of Wideband Spectrum Sharing in Cognitive Radio Networks
  • KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

A Dynamic QoS Model for Improving the Throughput of Wideband Spectrum Sharing in Cognitive Radio Networks


Abstract

This paper considers a wideband cognitive radio network (WCRN) which can simultaneously sense multiple narrowband channels and thus aggregate the detected available channels for transmission and studies the ergodic throughput of the WCRN that operated under: the wideband sensing-based spectrum sharing (WSSS) scheme and the wideband opportunistic spectrum access (WOSA) scheme. In our analysis, besides the average interference power constraint at PU, the average transmit power constraint of SU is also considered for the two schemes and a novel cognitive radio sensing frame that allows data transmission and spectrum sensing at the same time is utilized, and then the maximization throughput problem is solved by developing a gradient projection method. Finally, numerical simulations are presented to verify the performance of the two proposed schemes.


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Cite this article

[IEEE Style]
K.Manivannan, C.G.Ravichandran and B. K. Durai, "A Dynamic QoS Model for Improving the Throughput of Wideband Spectrum Sharing in Cognitive Radio Networks," KSII Transactions on Internet and Information Systems, vol. 8, no. 11, pp. 3731-3750, 2014. DOI: 10.3837/tiis.2014.11.005.

[ACM Style]
K.Manivannan, C.G.Ravichandran, and B.Sakthi Karthi Durai. 2014. A Dynamic QoS Model for Improving the Throughput of Wideband Spectrum Sharing in Cognitive Radio Networks. KSII Transactions on Internet and Information Systems, 8, 11, (2014), 3731-3750. DOI: 10.3837/tiis.2014.11.005.