Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (22): 108-112.DOI: 10.3778/j.issn.1002-8331.2008.22.033

• 网络、通信、安全 • Previous Articles     Next Articles

SASR-based multipath routing protocol SAMSR in Ad Hoc networks

ZHOU Ji-peng,TAN Pei-en   

  1. Department of Computer Science,Ji’nan University,Guangzhou 510632,China
  • Received:2007-10-09 Revised:2008-01-02 Online:2008-07-11 Published:2008-07-11
  • Contact: ZHOU Ji-peng



  1. 暨南大学 计算机科学系,广州 510632
  • 通讯作者: 周继鹏

Abstract: The single-path and multi-path reactive routing protocols in Ad Hoc networks are compared and analyzed,and a new mutli-path routing protocol SAMSR,which is based on SASR,is proposed in this paper.The protocol obtains the more topology information of the network by recording duplicate RREQs packets so that more reachable paths are discovered.After receiving duplicate RREPs,intermediate nodes send re-selection packet RSEL to ensure the paths’ nodes disjoint.The authors evaluate the performance of proposed protocol SAMSR with NS-2,the result shows that SAMSR improves the packet delivery ratio and reduces the average end-to-end delay of the packet,but it increases the cost of the network.

Key words: Ad Hoc network, multi-path routing protocol, SASR

摘要: 比较和分析了自组网络中单路径与多路径的反应式路由协议,在SASR的基础上提出了一个新的多路径路由协议SAMSR。它通过记录重复的RREQ报文以获得更多网络拓扑信息,从而发现更多的可达路径,以及在收到重复的RREP报文后,发回重选报文RSEL保证路径间的节点不相干性。最后通过在NS-2平台上模拟考查其性能,表明SAMSR协议虽然增加了网络开销,但提高了分组抵达率,减少了端到端的路由时延。

关键词: Ad Hoc网络, 多路径路由协议, SASR