Power controlled dual channel (PCDC) medium access protocol for wireless ad hoc networks

Alaa Muqattash, Marwan Krunz

Research output: Contribution to journalConference articlepeer-review

217 Scopus citations


In this paper, we propose a comprehensive solution for power control in mobile ad hoc networks (MANETs). Our solution emphasizes the interplay between the MAC and network layers, whereby the MAC layer indirectly influences the selection of the next-hop by properly adjusting the power of route request packets. This is done while maintaining network connectivity. Directional and channel-gain information obtained mainly from overheard RTS and CTS packets is used to dynamically construct the network topology. By properly estimating the required transmission power for data packets, our protocol allows for interference-limited simultaneous transmissions to take place in the neighborhood of a receiving node. Simulation results indicate that compared to the IEEE 802.11 approach, the proposed protocol achieves a significant increase in the channel utilization and end-to-end network throughput, and a significant decrease in the total energy consumption.

Original languageEnglish (US)
Pages (from-to)470-480
Number of pages11
JournalProceedings - IEEE INFOCOM
StatePublished - 2003
Event22nd Annual Joint Conference on the IEEE Computer and Communications Societies - San Francisco, CA, United States
Duration: Mar 30 2003Apr 3 2003


  • Ad hoc networks
  • IEEE 802.11
  • Power control

ASJC Scopus subject areas

  • General Computer Science
  • Electrical and Electronic Engineering


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