On scalability and mobility management of hierarchical large-scale ad hoc networks

  • Authors:
  • Ming-Hui Tsai;Tzu-Chiang Chiang;Yueh-Min Huang

  • Affiliations:
  • National Tainan First Senior High School, Taiwan, R.O.C;Department of Engineering Science, National Cheng-Kung University, Taiwan, R.O.C;Department of Engineering Science, National Cheng-Kung University, Taiwan, R.O.C

  • Venue:
  • EUC'05 Proceedings of the 2005 international conference on Embedded and Ubiquitous Computing
  • Year:
  • 2005

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Abstract

With the increased interest in the mobile wireless communication, the development of large-scale ad hoc networks has drawn a lot of attention and the scalability of ad hoc networks has been the subject of extensive research. The ad hoc network topology changes frequently and unpredictably, and mobility become extremely challenging in the circumstance. So, the broadcast storm becomes a very serious problem to migrate into such networks for the applications of group communications. The main concept of virtual subnet technology is the capability to group users into broadcast domains, which divides a virtual subnet into logic, instead of physical, segments and reduces the traffic overhead. With this characteristic, we propose an interoperability network model integrating self-organizing ad hoc networks and the Internet/a conventional network with the partition of physical/virtual subnets. Moreover, we describe a protocol to establish the virtual broadcast domains by using the IPv6 addressing concept in ad hoc networks and perform IP-based network communications in a multi-switch backbone. The hierarchical networks, physical/virtual subnets, addressing method and mobility management are described, and some performance issues are evaluated.