[1]MU Xiaomin,SHI Guangqiang,LIU Ying,et al.A contract-based cooperative spectrum sharing approach in cognitive radio system[J].Journal of Zhengzhou University (Engineering Science),2016,37(03):1-.[doi:10.13705/j.issn.1671-6833.2016.03.001]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 03
Page number:
1-
Column:
Public date:
2016-05-10
- Title:
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A contract-based cooperative spectrum sharing approach in cognitive radio system
- Author(s):
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MU Xiaomin ; SHI Guangqiang; LIU Ying ; YANG Shouyi
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School of Information Engineering, Zhengzhou University, Zhengzhou 450001, China
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- Keywords:
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cooperative spectrum sharing; contract theory; incomplete information; multiple primary users
- CLC:
-
-
- DOI:
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10.13705/j.issn.1671-6833.2016.03.001
- Abstract:
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To solve the problem of contract-based cooperative spectrum sharing between multiple primary usersand multiple secondary users,we put forward a contract design method based on statistical theory to maximizethe total utility of primary users. Firstly,the primary users make full use of the accepting contract statisticalinformation of secondary users to design a reasonable contract. Then,the primary users according to the statis-tical expected utility to obtain the optimization problem of maximizing theirs total expected utilities. Further-more,we simplify the problem in theory and exploit the genetic algorithm to derive the sub-optimal solution.The simulation results and analysis show the contract design method can solve the problem of contract-basedcooperative spectrum sharing successfully.Compared with the DMA-UI,the approach we formulated can makeprimary users obtain a higher utility, and further improve the primary users’energy efficiency and spectrumefficiency.