상세정보
학술지
Fairness-Based Superframe Design and Resource Allocation for Dynamic Rate Adaptation in DVB-RCS2 Satellite Systems
- 발행일
- 201911
- 출처
- IEEE Communications Letters, v.23 no.11, pp.2046-2049
- ISSN
- 1089-7798
- 출판사
- IEEE
- 협약과제
- 19NR1100, 재난현장 지원용 소형 운반형 위성중계장비(SNG) 개발, 유준규
- 초록
- In this letter, we consider a satellite communication system, where a gateway and multiple return channel satellite terminals (RCSTs) exchange information via a satellite based on the DVB-RCS2 standard. Transmission rate adaptation is used to deal with dynamic condition of return channels from the RCSTs. A joint superframe design and resource allocation problem is formulated to maximize Jain's fairness index. To overcome the high-computational complexity to obtain the optimal solution of the problem, we decompose the joint problem into two-level hierarchical problems and propose iterative algorithms to solve them. Simulation results show that the optimal solution of two-level hierarchical problems is very close to that of the joint problem, and that the proposed algorithms have low-computational complexity at the price of reduced fairness.
- KSP 제안 키워드
- Computational complexity, DVB-RCS2, Dynamic condition, Exchange information, Fairness index, Optimal Solution, Resource Allocation Problem, Return channel, Transmission rate adaptation, Two-level, iterative algorithms