On the performance of distributed N-cooperation power allocation via differential game in cognitive radio system

  • Authors:

  • Shunxi Gao;Long Zhang;Suqin Fan;Wei Huang;Qiwu Wu;Yu Deng

  • Affiliations:

  • Mechanical and Electrical Services Department, Handan Polytechnic College, Handan, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China;Mechanical and Electrical Services Department, Handan Polytechnic College, Handan, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China;School of Information Engineering, University of Science and Technology Beijing, Beijing, China;Communications Research Group, Department of Electronics, University of York, Heslington, UK

  • Venue:
  • WASA'10 Proceedings of the 5th international conference on Wireless algorithms, systems, and applications
  • Year:
  • 2010

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Abstract

In this paper, we study the distributed cooperative power allocation problem in a single-cell cognitive radio system. We build up a dynamic power allocation model via differential game using two formulated cost functions. Moreover, we propose a distributed cooperative power allocation algorithm based on differential game (DCPADG) under the condition that the average power limits and QoS constraints of secondary users (SUs) are guaranteed. Numerical results demonstrate that the proposed DCPADG algorithm can effectively reduce the transmit power and improve the throughput of SUs.