Hierarchical multicast routing scheme for mobile ad hoc network

  • Authors:
  • A. Shajin Nargunam;M. P. Sebastian

  • Affiliations:
  • Department of Computer Applications, N.I College of Engineering, Thuckalay, Tamil Nadu, India;Department of Computer Engineering, National Institute of Technology Calicut, Kerala, India

  • Venue:
  • HiPC'07 Proceedings of the 14th international conference on High performance computing
  • Year:
  • 2007

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Abstract

Ad hoc network is a dynamic multi-hop wireless network that is established by a group of mobile nodes on a shared wireless channel. The plain flooding algorithm provokes a high number of unnecessary packet rebroadcasts, causing contention, packet collisions and ultimately wasting precious limited bandwidth. Another barrier is that routing in ad hoc networks does not scale up as easily as in fixed network. Hierarchical techniques have long been known to afford scalability in networks. By introducing hierarchical routing scheme to ad hoc networks, we can effectively address this problem. Clustering provides a method to build and maintain hierarchical routing scheme in ad hoc networks. By summarizing topology detail via a hierarchical map of the network topology, network nodes are able to conserve memory and link resources. This paper proposes a fully distributed cluster based routing algorithm for mobile ad hoc networks. Non-overlapping clusters are formed using the dynamic cluster creation algorithm. Packets are routed according to the routing information available with each gateway node. The mobility issues are also handled locally in this routing architecture. The proposed cluster maintenance algorithm dynamically adapts to the changes and hence the efficiency is not degraded by node mobility. In addition, our analysis shows that building clustered hierarchies is affordable and that clustering algorithms can also be used to enhance network quality of service.