计算机科学 ›› 2014, Vol. 41 ›› Issue (4): 40-43.

• 网络与通信 • 上一篇    下一篇

GEO卫星通信系统中MF-TDMA信道分配算法研究

徐其乐,陈建州,刘立祥   

  1. 中国科学院大学 北京100190;中国科学院大学 北京100190;中国科学院软件研究所 北京100190
  • 出版日期:2018-11-14 发布日期:2018-11-14
  • 基金资助:
    本文受国家共性软件预研基金(6150103)资助

Channel Allocation Algorithm in MF-TDMA GEO Satellite System

XU Qi-le,CHEN Jian-zhou and LIU Li-xiang   

  • Online:2018-11-14 Published:2018-11-14

摘要: 提出了GEO卫星通信系统中MF-TDMA信道分配算法C-BFD。与传统信道资源分配算法相比,C-BFD采用了基于优先组合的方式,利用用户信道请求大小以及信道结构的特点,通过分配过程中对用户信道请求进行组合并优先分配,来减少时隙碎片的产生。仿真结果表明,该算法能够有效降低系统阻塞率以及信道碎片对系统资源利用率的负面影响。

关键词: 卫星通信,多频时分多址接入,信道分配,一维装箱,优先组合

Abstract: A channel allocation algorithm named C-BFD in MF-TDMA GEO satellite system was proposed.Comparing with the traditional channel allocation algorithms,C-BFD uses preferential combinition and allocates channel for users based on the characteristics of the channel structure and requested channel sizes.It reduces the channel fragmentation by combining users’ requests which can fill up a complete carrier with the same frequency.The simulation result shows that this algorithm can effectively bring down the system block rate and channel fragmentation.

Key words: Satellite communication,MF-TDMA,Channel allocation,Bin packing,Preferential combinition

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