Demand-Aware Multichannel Opportunistic Spectrum Access Mechanism under Interference Constraint
[1]Mu Xiaomin,Xu Ruru,Zhang Songwei,et al.Demand-Aware Multichannel Opportunistic Spectrum Access Mechanism under Interference Constraint[J].Journal of Zhengzhou University (Engineering Science),2019,40(03):26-30.[doi:10.13705/j.issn.1671-6833.2017.06.023]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40
Number of periods:
2019 03
Page number:
26-30
Column:
Public date:
2019-04-30
- Title:
- Demand-Aware Multichannel Opportunistic Spectrum Access Mechanism under Interference Constraint
- Keywords:
- Cognitive Radio; Opportunistic spectrum access; User needs; interference; potential energy game; Nash Equilibrium
- CLC:
- -
- Abstract:
- In the article, the problem that demand-aware multichannel opportunistic spectrum access in cognitive radio networks is researched and users’ satisfaction function is defined to measure users’ satisfaction effect, and an optimization problem in channel selection based on game theory is constructed. Interference constraint was drawn in the definition of users’ income function, aiming at giving consideration to both sides between minimizing users’interference and maximizing users’ satisfaction, and improve network per-formance at the same time. In this paper, It is verified that the game is an accurate potential game with at least one pure strategy Nash equilibrium and the Nash equilibrium is the optimal solution of the above optimization problem, and finally the simulation results are given to verify theoretical analysis is correct. It is shown that taking the satisfaction and the interference into account simultaneously can reduce the total interference of the whole network remarkably, get higher user satisfaction and the best fairness as well, and can improve the overall performance of the system.
- References:
- -
- Similar References:
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Last Update:
2019-04-16
