J4 ›› 2013, Vol. 40 ›› Issue (4): 96-101.doi: 10.3969/j.issn.1001-2400.2013.04.016

• 研究论文 • 上一篇    下一篇



  1. (1. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安  710071;
    2. 中国空间技术研究院西安分院 空间微波技术重点实验室,陕西 西安  710100)
  • 收稿日期:2012-04-09 出版日期:2013-08-20 发布日期:2013-10-10
  • 通讯作者: 张茂森
  • 作者简介:张茂森(1987-),男,西安电子科技大学博士研究生,E-mail: mszhang@stu.xidian.edu.cn.
  • 基金资助:


Reverse dispatching scheme for satellite Clos-network switches

ZHANG Maosen1;QIU Zhiliang1;GAO Ya1;LI Jun2   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071, China;
    2. Key Lab. of Space Microwave, China Academy of Space Technology(Xi'an), Xi'an  710100, China)
  • Received:2012-04-09 Online:2013-08-20 Published:2013-10-10
  • Contact: ZHANG Maosen



关键词: 卫星通信, 星上交换, 三级Clos网络, 调度算法, 流水线


For the special requirements of the on-board switching for satellite communication on hardware complexity and matching efficiency, the reverse dispatching scheme for MSM Clos-network switches is proposed. Unlike the previous dispatching schemes which perform matching according to the order of modules, the reverse dispatching scheme first buffers requests, and then performs internal matching in central modules instead. Then the results of the matching are used for the cell-sending in input modules. Different steps of the whole dispatching scheme are isolated in this dispatching scheme, which means that the performance of a step does not depend on the result of the preceding one. Then the whole dispatching scheme can be performed in a pipelined manner. Simulation results show that the reverse dispatching scheme can improve the dispatching efficiency without additional hardware overhead and achieve a low end-to-end delay.

Key words: satellite communication, on-board switching, three-stage Clos-network, dispatching scheme, pipeline


  • TP393