Capacity regions for wireless ad hoc networks

Stavros Toumpis, Andrea J. Goldsmith

Research output: Contribution to journalArticlepeer-review

438 Scopus citations

Abstract

We define and study capacity regions for wireless ad hoc networks with an arbitrary number of nodes and topology. These regions describe the set of achievable rate combinations between all source-destination pairs in the network under various transmission strategies, such as variable-rate transmission, single-hop or multihop routing, power control, and successive interference cancellation (SIC). Multihop cellular networks and networks with energy constraints are studied as special cases. With slight modifications, the developed formulation can handle node mobility and time-varying flat-fading channels. Numerical results indicate that multihop routing, the ability for concurrent transmissions, and SIC significantly increase the capacity of ad hoc and multihop cellular networks. On the other hand, gains from power control are significant only when variable-rate transmission is not used. Also, time-varying flat-fading and node mobility actually improve the capacity. Finally, multihop routing greatly improves the performance of energy-constraint networks.

Original languageEnglish (US)
Pages (from-to)736-748
Number of pages13
JournalIEEE Transactions on Wireless Communications
Volume2
Issue number4
DOIs
StatePublished - Jul 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Keywords

  • Ad hoc
  • Capacity region
  • Energy constraints
  • Flat fading
  • Mobility
  • Multihop cellular
  • Multihop routing
  • Wireless

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