东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (3): 320-325.DOI: 10.12068/j.issn.1005-3026.2017.03.004

• 信息与控制 • 上一篇    下一篇

低轨道卫星功率带宽资源联合分配方法

徐双1, 王兴伟2, 黄敏3   

  1. (1. 东北大学 计算机科学与工程学院, 辽宁 沈阳110169; 2. 东北大学 软件学院, 辽宁 沈阳110169; 3. 东北大学 信息科学与工程学院, 辽宁 沈阳110819)
  • 收稿日期:2015-10-27 修回日期:2015-10-27 出版日期:2017-03-15 发布日期:2017-03-24
  • 通讯作者: 徐双
  • 作者简介:徐双(1990-),女,河北秦皇岛人,东北大学博士研究生; 王兴伟(1968-),男,辽宁盖州人,东北大学教授,博士生导师; 黄敏(1968-),女,福建长乐人,东北大学教授,博士生导师.
  • 基金资助:
    国家杰出青年科学基金资助项目(61225012, 71325002); 国家自然科学基金资助项目(61572123); 辽宁省百千万人才工程项目(2013921068).

Power and Bandwidth Joint Allocation Method for LEO Satellites

XU Shuang1, WANG Xing-wei2, HUANG Min3   

  1. 1. School of Computer Science & Engineering, Northeastern University, Shenyang 110169, China; 2. School of Software, Northeastern University, Shenyang 110169, China; 3. School of Information Science & Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2015-10-27 Revised:2015-10-27 Online:2017-03-15 Published:2017-03-24
  • Contact: WANG Xing-wei
  • About author:-
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摘要: 由于低轨道卫星星上功率和带宽资源有限,设计有效的资源分配方法具有重要的意义.基于此提出了一种低轨道星间功率带宽资源联合分配方法,提高了星间资源分配的公平性和网络业务承载能力.该方法应用地面站数目和星地链路存在时间刻画星间链路容量的比例,将星间资源分配问题归纳为非线性混合整数规划问题.通过引入动态可行域,定义二元变量更新操作来改进燕子群算法,用于优化模型求解.仿真得出卫星瞬时吞吐容量和瞬时网络容量变化具有周期性,并伴有随机波动,所提方法牺牲了网络容量,获取了星间资源分配的公平性.

关键词: 低轨道卫星, 功率, 带宽, 联合分配, 燕子群优化

Abstract: Onboard power and bandwidth of low earth orbit (LEO) satellite networks are limited, thus designing an efficient resource allocation method is of great significance. A power and bandwidth joint allocation method for LEO satellites was proposed, and improved the resource allocation fairness among satellites and network service carrying ability were improved. The ground stations number and user data links life time were used to describe proportional constraints of intersatellite links capacity, and satellite resources allocation problem was formulated as a nonlinear mixed integer programming problem. Swallow swarm optimization (SSO) was improved by introducing dynamic feasible region and defining binary variable update operation, then the optimization model was solved by using this method. Simulations demonstrate satellite instantaneous throughput capacity and network instantaneous capacity change periodically with random fluctuations. The method achieves the resource allocation fairness among satellites at cost of network capacity.

Key words: low earth orbit (LEO) satellites, power, bandwidth, joint allocation, swallow swarm optimization

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