Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2009, Vol. 32 ›› Issue (5): 75-79.doi: 10.13190/jbupt.200905.75.370

• Papers • Previous Articles     Next Articles

An Improved ODMRP Used for Multi-Source Group Communication

YIN Min1,TANG Yao2   

  1. (1.Institute of Meteorology, People's Liberation Army University of Science and
    Technology, Nanjing 211101, China;
    2.Institute of Command Automation, People's Liberation Army University of Science and Technology, Nanjing 210007, China)
  • Received:2009-02-26 Revised:2009-08-17 Online:2009-10-28 Published:2009-10-28
  • Contact: YIN Min

Abstract:

In order to reduce great overhead of ondemand multicast routing protocol (ODMRP) in multisource applications, an improved flooding limitation mechanism ispresented, which permits forwarding nodes and backup nodes to transmit maintenance packets only. It makes good use of broadcast characteristic of wireless channel and periodical routing maintenance of ODMRP. Simulation shows that this improved ODMRP is especially fit for multisource group communication and less receiver occasion compared to the network scale. Under the above conditions, the protocol reduces maintenance overhead effectively and enhances packet delivery ratio(PDR) distinctly.

Key words: multi-source group communication; multicast routing protocol; flooding limitation, forwarding node, backup node; Ad Hoc network