TIIS (한국인터넷정보학회)
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| 한글제목(Korean Title) |
Resource Allocation for Relay-Aided Cooperative Systems Based on Multi-Objective Optimization |
| 영문제목(English Title) |
Resource Allocation for Relay-Aided Cooperative Systems Based on Multi-Objective Optimization |
| 저자(Author) |
Runze Wu
Jiajia Zhu
Hailin Hu
Yanhua He
Liangrui Tang
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| 원문수록처(Citation) |
VOL 12 NO. 05 PP. 2177 ~ 2193 (2018. 05) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
This paper studies resource allocation schemes for the relay-aided cooperative system consisting of multiple source-destination pairs and decode-forward (DF) relays. Specially, relaying selection, multisubcarrier pairing and assignment, and power allocation are investigated jointly. We consider a combinatorial optimization problem on quality of experience (QoE) and energy consumption based on relay-aided cooperative system. For providing better QoE and lower energy consumption we formulate a multi-objective optimization problem to maximize the total mean opinion score (MOS) value and minimize the total power consumption. To this end, we employ the nondominated sorting genetic algorithm version II (NSGA-II) and obtain sets of Pareto optimal solutions. Specially, two formulas are devised for the optimal solutions of the multi-objective optimization problems with and without a service priority constraint. Moreover, simulation results show that the proposed schemes are superior to the existing ones.
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| 키워드(Keyword) |
Resource allocation
relays
multi-objective optimization
nondominated sorting genetic algorithm version II
NSGA-II
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| 파일첨부 |
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