计算机科学 ›› 2010, Vol. 37 ›› Issue (1): 138-141.

• 计算机网络与信息安全 • 上一篇    下一篇

网络编码在实时战术数据多播中的应用

张立冬,覃光成,李臻,尹浩   

  1. (解放军理工大学通信工程学院 南京210007);(总参第61研究所通信中心 北京100141);(北京大学软件与微电子学院 北京102600)
  • 出版日期:2018-12-01 发布日期:2018-12-01
  • 基金资助:
    本文受国家自然科学基金(60673154,60573131)资助。

Application of Network Coding in Real-time Tactical Data Multicast

ZHANG Li-dong,QIN Guang-cheng,LI Zhen,YIN Hao   

  • Online:2018-12-01 Published:2018-12-01

摘要: 抽象了一种基于中心的战术应用场景与业务,并将网络编码技术应用于此类场景的实时数据多播业务中。在分析基于中心网络与Many-to-all业务模式特性的基础上,提出了仅在中心节点进行编码操作的传输策略以及相应的贪心算法。分析了网络编码多播策略的理论增益上界,仿真试验表明该贪心算法能够获得与理论相近的性能增益。最后的分析与仿真试验表明,在这种有中心网络的实时数据多播应用中,所提出的多播策略的实时性能要明显优于传统传输策略。

关键词: 网络编码,实时,战术数据,多播,贪心算法

Abstract: Network coding technique is used to the multicast of tactical scene, which is abstracted in this paper. And based on analyzing the characteristic of this network with central node and many-to-all traffic, a transmission policy based on coding only upon the central node and corresponding greedy algorithm were proposed. The up-bound of theoretic gain for the transmission policy based on network coding was analyzed, and simulation results show that the gain of greedy algorithm is close to the optimum. Finally, the analyzing and simulation results provide important insights that the proposed policy based on network coding has better real-time performance than the classical policy in the multicast application.

Key words: Network coding, Real-time, Tactical data, Multicast, Greedy algorithm

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