Resource allocation in heterogeneous buffered cognitive radio networks

Show simple item record Awoyemi, Babatunde Seun Maharaj, Bodhaswar Tikanath Jugpershad Alfa, Attahiru Sule 2017-09-11T11:02:26Z 2017-09-11T11:02:26Z 2017-07-25
dc.description.abstract Resources available for operation in cognitive radio networks (CRN) are generally limited, making it imperative for efficient resource allocation (RA) models to be designed for them. However, in most RA designs, a significant limiting factor to the RA’s productivity has hitherto been mostly ignored, the fact that different users or user categories do have different delay tolerance profiles. To address this, in this paper, an appropriate RA model for heterogeneous CRN with delay considerations is developed and analysed. In themodel, the demands of users are first categorised and then, based on the distances of users fromthe controlling secondary user base station and with the assumption that the users are mobile, the user demands are placed in different queues having different service capacities and the resulting network is analysed using queueing theory. Furthermore, to achieve optimality in the RA process, an important concept is introduced whereby some demands fromone queue aremoved to another queue where they have a better chance of enhanced service, thereby giving rise to the possibility of an improvement in the overall performance of the network. The performance results obtained from the analysis, particularly the blocking probability and network throughput, show that the queueing model incorporated into the RA process can help in achieving optimality for the heterogeneous CRN with buffered data. en_ZA
dc.description.department Electrical, Electronic and Computer Engineering en_ZA
dc.description.librarian am2017 en_ZA
dc.description.uri en_ZA
dc.identifier.citation Awoyemi, B.S., Maharaj, B.T. & Alfa, A.S. 2017, 'Resource allocation in heterogeneous buffered cognitive radio networks', Wireless Communications and Mobile Computing, vol. 2017, art. no. 7385627, pp. 1-12. en_ZA
dc.identifier.issn 1530-8669 (print)
dc.identifier.issn 1530-8677 (online)
dc.identifier.other 10.1155/2017/7385627
dc.language.iso en en_ZA
dc.publisher Wiley en_ZA
dc.rights © 2017 B. S. Awoyemi et al. This is an open access article distributed under the Creative Commons Attribution License. en_ZA
dc.subject Cognitive radio network (CRN) en_ZA
dc.subject Resource allocation (RA) en_ZA
dc.subject Cognitive radio (CR) en_ZA
dc.subject Secondary users en_ZA
dc.subject Queueing model en_ZA
dc.subject Network throughput en_ZA
dc.subject Efficient resource allocation en_ZA
dc.subject Different services en_ZA
dc.subject Delay tolerances en_ZA
dc.subject Queueing theory en_ZA
dc.subject Queueing networks en_ZA
dc.subject Blocking probability en_ZA
dc.title Resource allocation in heterogeneous buffered cognitive radio networks en_ZA
dc.type Article en_ZA

Files in this item

This item appears in the following Collection(s)

Show simple item record