Interference-limited MAC protocol for MANETs with directional antennas

Aman Arora, Marwan Krunz

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

9 Scopus citations

Abstract

Directional antennas can significantly improve the spatial reuse of a mobile ad hoc network (MANET), leading to higher network throughput. This gain comes with a substantial energy saving that results from beamforming the transmitter and/or receiver antennas in the appropriate directions. However, several medium access problems resurface when directional antennas are integrated into existing MAC protocols. We propose a power-controlled MAC protocol for directional antennas that ameliorates these problems. Our protocol allows for dynamic adjustment of the transmission power for both data and clear-to-send (CTS) packets to optimize energy consumption. It provides a mechanism for permitting interference-limited concurrent transmissions and choosing the appropriate tradeoff between throughput and energy consumption. The protocol enables nodes to implement load control in a distributed manner, whereby the total interference in the neighborhood of a receiver is upper-bounded. Simulation results demonstrate that the combined gain from concurrent transmissions using directional antennas and power control results in up to 89% saving in energy compared to a previously proposed protocol and to the CSMA/CA scheme used in the IEEE 802.11 standard. At the same time, network throughput is improved by 79% and 185% over these protocols, respectively.

Original languageEnglish (US)
Title of host publicationProceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005
Pages2-10
Number of pages9
DOIs
StatePublished - Dec 1 2005
Event6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005 - Taormina - Giardini Naxos, Italy
Duration: Jun 13 2005Jun 16 2005

Publication series

NameProceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005

Other

Other6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005
CountryItaly
CityTaormina - Giardini Naxos
Period6/13/056/16/05

Keywords

  • Ad hoc networks
  • Directional antennas
  • Interference-limited transmissions
  • Medium access
  • Power control

ASJC Scopus subject areas

  • Computer Networks and Communications

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  • Cite this

    Arora, A., & Krunz, M. (2005). Interference-limited MAC protocol for MANETs with directional antennas. In Proceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005 (pp. 2-10). [1443479] (Proceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005). https://doi.org/10.1109/WOWMOM.2005.56