Earticle

초록

영어

We investigate the problem of achieving utility function optimization for distributed channel selection using game theoretic solutions in opportunistic spectrum access system, where secondary users are spatially located and mutual interference only emerges between neighboring users. In addition, interference graph of spatial position is introduced to measure interference and evaluate the possible opportunities of spectrum access. Based on this we propose an optimization problem of minimizing loss throughput, which is solved by a game theory and an optimal channel selection set is derived. The main work of this paper is to prove that this game is an exact potential game, which has at least one pure strategy Nash equilibrium. Finally simulation results is given to verify the correctness of the theoretical analysis. Especially meanwhile after considering spatial reuse by users’ position, the system throughput is significantly increased, thus the spectrum utilization rate is effectively improved.

목차

Abstract
 1. Introduction
 2. The Formulation of Distributed Channel Selection and Interference Graph
 3. The Optimization Problem of Distributed Channel Selection with Game Theory
  3.1. The Optimization Model of Spectrum Sharing with Spatial Reuse
  3.2. The Optimization Problem Solution with Game Theory
 4. Simulation Results
 5. Conclusions
 References

키워드

저자

• Ying Liu [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]
• Guangqiang Shi [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]
• Xiaomin Mu [ School of Information Engineering, Zhengzhou University, Zhengzhou, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605