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Journal Article
Fairness-Based Superframe Design and Resource Allocation for Dynamic Rate Adaptation in DVB-RCS2 Satellite Systems
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- Authors
- Dong-Hyun Jung, Min-Su Shin, Joon-Gyu Ryu
- Issue Date
- 2019-11
- Citation
- IEEE Communications Letters, v.23, no.11, pp.2046-2049
- ISSN
- 1089-7798
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Computational complexity, DVB-RCS2, Dynamic condition, Exchange information, Fairness index, Resource allocation problem, Return channel, Satellite system, Transmission rate adaptation, Two-level, iterative algorithms