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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:SI Peng-bo,SUN En-chang,ZHANG Yan-hua.Optimal spectrum allocation of primary users in light-handed cognitive radio networks[J].Journal of Harbin Institute Of Technology(New Series),2012,19(3):21-27.DOI:10.11916/j.issn.1005-9113.2012.03.004.
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Optimal spectrum allocation of primary users in light-handed cognitive radio networks
Author NameAffiliation
SI Peng-bo College of Electronic Information and Control Engineering, Beijing University of Technology, 100124 Beijing, China 
SUN En-chang College of Electronic Information and Control Engineering, Beijing University of Technology, 100124 Beijing, China 
ZHANG Yan-hua College of Electronic Information and Control Engineering, Beijing University of Technology, 100124 Beijing, China 
Abstract:
In traditional cognitive radio (CR) network, secondary users (SUs) are always assumed to obey the rule of “introducing no interference to the primary users (PUs)”. However, this assumption may be not realistic as the CR devices becoming more and more intelligent nowadays. In this paper, with the concept of light-handed CR, which is proposed to deal with the above mentioned problem by enforcing “punishment” to illegal CR transmissions, the action decisions of primary users (PUs) are modeled as a partially observable Markov decision process (POMDP), and the optimal spectrum allocation scheme with the objective of maximizing their reward is proposed, which is defined by the utility function. Furthermore, a reduced scheme with much smaller state space has been proposed in this paper for lower computational complexity. Extensive simulation results show that the proposed schemes improve the reward significantly compared to the existing scheme.
Key words:  cognitive radio networks  light-handed CR  optimal decision making  POMDP
DOI：10.11916/j.issn.1005-9113.2012.03.004
Clc Number:TN915
Fund:

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