中国空间科学技术

中国空间科学技术

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生物智能型算法在信道分配策略中的应用

闫忠文;卜天;张乃通;   

  1. 哈尔滨工业大学通信技术研究所;中国空间技术研究院;
  • 发布日期:2008-10-25

Dynamic Channel Assignment Arithmetic Based on Evolutionary Arithmetic

Yan Zhongwen1,2 Bu Tian1 Zhang Naitong1(1 Communication Research Center of Harbin Institute of Technology,Harbin 150001)(2 China Academy of Space Technology,Beijing 100094)   

  • Online:2008-10-25

被引次数

1

摘要： 由于同步轨道卫星通信的传输时延较长,因此该类卫星对动态信道分配算法的延时性能非常敏感。针对宽带多媒体通信卫星的动态信道分配问题建立数学模型,并且使用生物智能型算法进行求解。仿真结果表明,与传统的分支定界法相比,采用生物智能型算法求解动态信道分配问题,其延时性能提高47%,并能得到更为高效的信道分配方案。

关键词: 生物智能型算法, 动态信道分配, 宽带多媒体

Abstract: Because of the long transmission delay for GEO communication satellites,the performance of dynamic channel assignment(DCA) is sensitive to the time of DCA algorithm.A mathematical model was firstly established for DCA of a new generation of broad-band multimedia communication satellite.Then,a novel approach for DCA based on evolutionary arithmetic(EA) was proposed.The simulation results demonstrate that this EA method reduce the system delay 47% and offer more efficient channel assignment strategy than that of the classic method.