A cognitive radio wireless network is an emerging communication paradigm to effectively address spectrum scarcity challenge. In this paper, we investigate the performance improvement gained by applying cognitive radio to a multiple Wireless Service Providers (WSPs). We consider several independent WSPs and two types of users: primary (licensed) and secondary (unlicensed) users. We have proposed a scheme for secondary users to manage their handoff based on a threshold on the number of channels fixed by the WSP. As each WSP evolves in a random environment, we propose a game theoretic framework to find a Nash equilibrium and a stochastic learning algorithm to converge to this equilibrium. A Markov process, with continuous time and finite state space, models the system. Numerical results show the system equilibrium points and the conditions to converge to the best one of them to increase the spectrum utilization of cognitive users.
목차
Abstract 1. Introduction 2. System Description 3. Admission Control a. Transition Rates and System State b. Migration Rates c. Performance Evaluation i. Blocking Probability ii. Spectrum Utilization 4. Stochastic Automata Games a. Game Formulation b. Discrete Stochastic Learning Game c. Theoretical Analysis of the Learning Algorithm 5. Numerical Results a. Uniqueness of Equilibrium b. Stochastic Learning Game 6. Conclusion References
보안공학연구지원센터(IJFGCN) [Science & Engineering Research Support Center, Republic of Korea(IJFGCN)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Future Generation Communication and Networking
간기
격월간
pISSN
2233-7857
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Future Generation Communication and Networking Vol.7 No.1