This paper focuses on the optimal relay selection and power allocation issue, which studies the communication between SS (Secondary Source) and two SDs (Secondary Destinations) through single relay in CR (cooperative cognitive communication) system. Sufficiently takes the multi-antenna relay, primary-secondary users coexisting, and AF (Amplify and Forward) relay mode as the researching background, and takes the constraints caused by the primary user’s interference and the max transmission power into account, the author proposes to maximize the system throughput by the selection of cooperative relay and the allocation of optimal power. Furthermore, the author also puts forward the approximate expressions of the optimal power allocation, and figures out the optimal solution by the Lagrange multiplier, whose property can be manifested by the simulation and comparison results.
목차
Abstract 1. Introduction 2. System Model and Problem Formulation 3. Optimal Relay Selection and Power Allocation 3.1. Algorithm-oriented Mathematical Models 3.2. Power Allocation Algorithm 3.3. Relay Selection Algorithm 4. Simulated Result and Comparison 5. Conclusion Acknowledgements References
키워드
cooperative cognitive communication systemsmulti-antenna relayrelay selectionpower allocationsystem throughput
저자
Guanglong Yang [ Communication Research Center, Harbin Institute of Technology, Harbin, 150080, China, Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin, 150080, China ]
Xiao Wang [ Communication Research Center, Harbin Institute of Technology, Harbin, 150080, China, Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin, 150080, China ]
Xuezhi Tan [ Communication Research Center, Harbin Institute of Technology, Harbin, 150080, China, Key Laboratory of Police Wireless Digital Communication, Ministry of Public Security, Harbin, 150080, China ]
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.6