Performance and scalability of self-organizing hierarchical ad hoc wireless networks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Scopus citations

Abstract

A novel self-organizing hierarchical architecture is proposed for improving the performance and scalability properties of ad hoc wireless networks. This paper presents the results of a simulation study of performance and throughput capacity of a specific three-tier hierarchical ad hoc network with 802.11 radios, forwarding nodes and access points. The performance of the proposed hierarchical network is evaluated for two well-known classes of ad hoc routing protocols: Dynamic Source Routing (DSR) and Ad hoc On-demand Distance Vector (AODV), and compared with that of a conventional "flat" ad hoc network. The results for an example sensor network scenario show significant capacity increases with the hierarchical architecture for both DSR and AODV cases. Modifications to ad hoc routing metrics for energy efficiency are also considered. The scalability properties of the three-tier hierarchy are studied further in terms of the achievable system capacity as a function of the relative densities of sensor nodes, forwarding nodes and access points. It is shown that the capacity of the three-tier hierarchical network scales well when the number of forwarding nodes and access points are increased in the right proportions.

Original languageEnglish (US)
Title of host publication2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
Pages132-137
Number of pages6
StatePublished - 2004
Event2004 IEEE Wireless Communications and Networking Conference, WCNC 2004 - Atlanta, GA, United States
Duration: Mar 21 2004Mar 25 2004

Publication series

Name2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
Volume1

Other

Other2004 IEEE Wireless Communications and Networking Conference, WCNC 2004
Country/TerritoryUnited States
CityAtlanta, GA
Period3/21/043/25/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Keywords

  • Hierarchical ad hoc networks
  • Performance evaluation
  • Routing

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