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Title: Medium access control for dynamic spectrum access in cognitive radio networks : analysis under uncertainty
Authors: Dong, Qiumin
Niyato, Dusit
Wang, Ping
Keywords: Dynamic Spectrum Access
Medium Access Control
Engineering::Computer science and engineering
Issue Date: 2012
Source: Dong, Q., Niyato, D., & Wang, P. (2014). Medium Access Control for dynamic spectrum access in cognitive radio networks : analysis under uncertainty. Wireless Communications and Mobile Computing. doi:10.1002/wcm.2203
Series/Report no.: Wireless communications and mobile computing
Abstract: Medium Access Control is an important component in cognitive radio that allow secondary users to identify and access spectrum opportunity without interfering with primary users. In this paper, a queueing model to analyze the performances of the secondary users in a cognitive radio network is presented. The queueing model considers the transmissions of a secondary system where a Medium Access Control algorithm is used to enable the secondary users to sense and access the channels. Also, a simple scheduler is employed to assign transmission time slots to the secondary users. Because the value of the system parameters can be perturbed and cannot be determined precisely, the analysis is extended to take uncertainty into account. In this case, a robust optimization method to study the Markov chain with uncertainty is applied to obtain the stationary probabilities of the queueing model under uncertainty. The lower and upper bounds of performance measures are obtained and compared with the nominal value.
ISSN: 1530-8677
DOI: 10.1002/wcm.2203
Rights: © 2012 John Wiley & Sons, Ltd. published by Hindawi Publishing Corporation. This is an open-access article distributed under the terms of the Creative Commons Attribution License.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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