dc.contributor.author |
Awoyemi, Babatunde Seun
|
|
dc.contributor.author |
Maharaj, Bodhaswar Tikanath Jugpershad
|
|
dc.contributor.author |
Alfa, Attahiru Sule
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|
dc.date.accessioned |
2017-08-29T07:05:34Z |
|
dc.date.available |
2017-08-29T07:05:34Z |
|
dc.date.issued |
2017-07 |
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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 the model, the demands of users are first categorised and then, based on the distances of users from the 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 from one queue are moved 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 |
hj2017 |
en_ZA |
dc.description.uri |
https://www.hindawi.com/journals/wcmc |
en_ZA |
dc.identifier.citation |
Awoyemi, B.S., Maharaj, B.T. & Alfa, A.S. 2017, 'Resource allocation in heterogeneous cooperative cognitive radio networks', Wireless Communications and Mobile Computing, vol. 2017, art. ID 7385627, pp. 1-12. https://doi.org/10.1155/2017/7385627. |
en_ZA |
dc.identifier.issn |
1530-8669 (print) |
|
dc.identifier.issn |
1530-8677 (online) |
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dc.identifier.other |
10.1155/2017/7385627 |
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dc.identifier.uri |
http://hdl.handle.net/2263/62127 |
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dc.language.iso |
en |
en_ZA |
dc.publisher |
Hindawi Publishing |
en_ZA |
dc.rights |
© 2017 B. S. Awoyemi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
en_ZA |
dc.subject |
Cognitive radio networks (CRN) |
en_ZA |
dc.subject |
Resource allocation (RA) |
en_ZA |
dc.subject |
Heterogeneous CRN |
en_ZA |
dc.title |
Resource allocation in heterogeneous buffered cognitive radio networks |
en_ZA |
dc.type |
Article |
en_ZA |