中国空间科学技术

Chinese Space Science and Technology

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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

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.