닫기
Loading..

Please wait....

영문 논문지

홈 홈 > 연구문헌 > 영문 논문지 > TIIS (한국인터넷정보학회)

TIIS (한국인터넷정보학회)

Current Result Document : 8 / 35 이전건 이전건   다음건 다음건

한글제목(Korean Title) Constellation Multi-Objective Optimization Design Based on QoS and Network Stability in LEO Satellite Broadband Networks
영문제목(English Title) Constellation Multi-Objective Optimization Design Based on QoS and Network Stability in LEO Satellite Broadband Networks
저자(Author) Dawei Yan   Peng You   Cong Liu   Shaowei Yong   Dongfang Guan  
원문수록처(Citation) VOL 13 NO. 03 PP. 1260 ~ 1283 (2019. 03)
한글내용
(Korean Abstract)
영문내용
(English Abstract)
Low earth orbit (LEO) satellite broadband network is a crucial part of the space information network. LEO satellite constellation design is a top-level design, which plays a decisive role in the overall performance of the LEO satellite network. However, the existing works on constellation design mainly focus on the coverage criterion and rarely take network performance into the design process. In this article, we develop a unified framework for constellation optimization design in LEO satellite broadband networks. Several design criteria including network performance and coverage capability are combined into the design process. Firstly, the quality of service (QoS) metrics is presented to evaluate the performance of the LEO satellite broadband network. Also, we propose a network stability model for the rapid change of the satellite network topology. Besides, a mathematical model of constellation optimization design is formulated by considering the network cost-efficiency and stability. Then, an optimization algorithm based on non-dominated sorting genetic algorithm-Ⅱ (NSGA-Ⅱ) is provided for the problem of constellation design. Finally, the proposed method is further evaluated through numerical simulations. Simulation results validate the proposed method and show that it is an efficient and effective approach for solving the problem of constellation design in LEO satellite broadband networks.
키워드(Keyword) Constellation design   LEO satellite broadband network   quality of service (QoS) metrics   network stability factor   cost-efficient ratio   NSGA-Ⅱ-IS  
파일첨부 PDF 다운로드