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| Resource Allocation Algorithm Based on Stable Matching in Hierarchical Cognitive Radio Networks |
| CAO Long①② ZHAO Hangsheng② BAO Lina③ ZHANG Jianzhao② |
①(Institute of Communications Engineering, PLA University of Science and Technology, Nanjing 210007, China)
②(Nanjing Telecommunication Technology Institute, Nanjing 210007, China)
③(Jiangsu Branch, China Unicom Corporation Limited, Nanjing 210019, China) |
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Abstract The rational spectrum resource allocation is one of the goals of Cognitive Radio (CR) technology. With the rapid increase of Secondary Users (SUs) numbers, the precise and real-time management becomes more and more difficult to achieve. In order to solve this problem, a hierarchical Cognitive Radio Network (CRN) architecture that several administration entities focus on providing spectrum services for users of variety tiers is proposed. The corresponding resource allocation algorithm based on stable matching in this architecture is also given. This algorithm guarantees the restriction on SUs’ transmission power for Primary Users (PUs), and also considers both utility functions of users. Simulation results demonstrate that the proposed method can roughly achieve the same performance of optimal solution with lower computation complexity and system delay.
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Received: 24 December 2015
Published: 14 July 2016
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| Fund: The National Natural Science Foundation of China (61471395, 61471392, 61301161), The Natural Science Foundation of Jiangsu Province (BK20141070) |
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Corresponding Authors:
CAO Long
E-mail: caolong460@sohu.com
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