Design and implementation of two-tier MANETs with seamless roaming and load-balancing routing capability

Yuan Ying Hsu*, Yu-Chee Tseng, Chien-Chao Tseng, Chi Fu Huang, Jung Hsuan Fan, Hsiao Lu Wu

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Due to its flexibility, the Mobile Ad Hoc Network (MANET) has attracted a lot of attention recently. Most existing works, however, limit a MANET to being a stand-alone network. In this paper, we propose a two-tier MANET by extending the connectivity of the MANET to the Internet. Some hosts in the MANET are equipped with cellular interfaces and are called gateways, which can provide Internet connections. Such extension would greatly improve the connectivity of the MANET. To maintain seamless connectivity, we modify the Mobile IP to make traversing private networks (i.e., NAT) of cellular networks possible. We also propose a load-balancing routing protocol to utilize the cellular interfaces of gateways, which are likely to be bottlenecks to the Internet. A prototype is implemented and performance results obtained from the testbed are reported.

Original languageEnglish
Pages (from-to)286-299
Number of pages14
JournalPervasive and Mobile Computing
Volume2
Issue number3
DOIs
StatePublished - 1 Jan 2006

Keywords

  • Load balance
  • MANET
  • Mobile IP
  • NAT
  • Roaming
  • Routing
  • Two-tier

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