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It isnot more and more, easy to satisfy the important and growing spectrum demandsin the context of the static conventional policy spectrum allocation.Therefore, to find a suitable solution to this problem, we are to daysobserving the apparition of flexible dynamic spectrum allocation methods. Thesemethods that ought to improve more significantly the spectrum use have gainedmuch interest. In fact, the digital dividend due to the change-over from theanalog television to the digital terrestrial television must be efficiently used.So the Dynamic Spectrum Access DSA can potentially play a key role in shapingthe future digital dividend use. In the DSA, two kinds of users or networkscoexist on different channels. The first one, known as the primary user,accesses to a channel with high priority; and the second one, known assecondary user has a low priority. This paper presents a dynamic spectrumaccess protocol based on an auction framework. Our protocol is an interestingtool that allows the networks to bid and obtain on the available spectrum, therights to be primary and secondary users according their valuations and trafficneeds. Based on certain offers, our protocol selects primary and secondaryusers for each idle channel in order to realize the maximum economic for theregulator or social benefits. We deal with the case in which the offers of thenetworks are independent one another even if they will share the same channels.We design an algorithm in accordance with our dynamic spectrum access protocol.The algorithm is used here to find an optimal solution to the access allocationproblem, specifically to digital dividend. Finally, the results in the numericsection, regarding the three suggested scenarios, show that the proposeddynamic spectrum access protocol is viable. The algorithm is able to eliminateall non-compliant bidders for the available spectrum sharing. We notice thatthe revenue or social benefits of the regulator is maximized when we have oneach channel, one primary user and the maximum number of secondary users.

KEYWORDS

Dynamic Spectrum Access Protocol, Centralized Spectrum Sharing, Spectrum Auctions, Digital Dividend

Cite this paper

Zamblé, R. , Gbégbé, R. , Kadjo, J. , Asseu, O. and Brou, P. 2016 Dynamic Spectrum Access Protocol for the Digital Dividend. Circuits and Systems, 7, 4124-4144. doi: 10.4236-cs.2016.713340.





Author: Raoul Zamblé1*, Raymond Gbégbé2, Jean-Marie Kadjo1, Olivier Asseu1,2*, Pacôme Brou2

Source: http://www.scirp.org/



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