基于分簇的全带宽跳波束图案优化方法  

Optimization Method for Full Bandwidth Beam Hopping Pattern Based on Clustering

作　　者：王亚昕 边东明 胡婧 唐璟宇 王闯 WANG Yaxin;BIAN Dongming;HU Jing;TANG Jingyu;WANG Chuang(School of Communications Engineering,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]陆军工程大学通信工程学院,南京210007

出　　处：《计算机工程》2020年第4期169-176,共8页Computer Engineering

基　　金：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)。

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.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.

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 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]