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计算机工程 ›› 2020, Vol. 46 ›› Issue (4): 169-176. doi: 10.19678/j.issn.1000-3428.0055179

• 移动互联与通信技术 • 上一篇    下一篇

基于分簇的全带宽跳波束图案优化方法

王亚昕, 边东明, 胡婧, 唐璟宇, 王闯   

  1. 陆军工程大学 通信工程学院, 南京 210007
  • 收稿日期:2019-06-11 修回日期:2019-07-22 出版日期:2020-04-15 发布日期:2019-08-09
  • 作者简介:王亚昕(1995-),女,硕士研究生,主研方向为卫星通信;边东明、胡婧,副教授;唐璟宇、王闯,博士研究生。
  • 基金资助:
    国家自然科学基金"面向物联网的电磁感知低轨星座系统体系架构设计及关键技术研究"(91738201)。

Optimization Method for Full Bandwidth Beam Hopping Pattern Based on Clustering

WANG Yaxin, BIAN Dongming, HU Jing, TANG Jingyu, WANG Chuang   

  1. School of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, China
  • Received:2019-06-11 Revised:2019-07-22 Online:2020-04-15 Published:2019-08-09

摘要: 为解决全带宽跳波束卫星通信系统中的干扰问题,提出一种基于波束分簇的跳波束图案优化方法。以各波束请求量占系统可提供资源的比例为时隙分配依据,在满足相对公平的前提下提高系统总容量,推算距离门限值,当波束间距离大于该门限时,干扰对于信号质量的影响可忽略不计,从而达到规避干扰的目的。仿真结果表明,与传统多波束系统相比,该资源分配方法可使系统容量提升24.6%,消除系统干扰对信号质量的影响,改善跳波束图案的时隙连续性。

关键词: 卫星通信系统, 跳波束, 波束分簇, 波束间干扰, 资源分配

Abstract: To solve the problem of the interference in the full bandwidth Beam Hopping(BH) satellite communication system,this paper proposes a BH pattern optimization method based on beam clustering.Slot allocation is made according to the proportion of each beam request to the available resources of the system,and the system capacity is improved on the premise of satisfying relative fairness.A distance threshold is calculated,and when the distance between beams is greater than the threshold,the influence of interference on signal quality can be ignored.Therefore,the purpose of avoiding interference is achieved by controlling the distance between simultaneous beams to be larger than the threshold.Simulation results show that compared with the traditional multibeam system,the resource allocation method increases the system capacity by 24.6%,eliminates the effect of system interference on signal quality,and improves the timeslot continuity of the BH pattern.

Key words: satellite communication system, Beam Hopping(BH), beam clustering, inter beam interference, resource allocation

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