MAC protocols using directional antennas in IEEE 802.11 based ad hoc networks

Young Bae Ko, Jong Mu Choi, Nitin H. Vaidya

Research output: Contribution to journalArticlepeer-review


Using directional antennas can be beneficial for wireless ad hoc networks consisting of a collection of wireless hosts. The most important benefit includes a reduction of the radio interference. Thus, it can significantly increase the spatial reuse, thereby improving the network throughput. To best utilize directional antennas, a suitable Medium Access Control (MAC) protocol must be designed. Current MAC protocols, such as the IEEE 802.11 standard, do not benefit when using directional antennas, because these protocols have been designed for omnidirectional antennas. In this paper, we present modified MAC protocols suitable for 802.11 based ad hoc networks using directional antennas. Our comprehensive simulation results demonstrate the performance improvement obtained with the proposed protocols.

Original languageEnglish (US)
Pages (from-to)783-795
Number of pages13
JournalWireless Communications and Mobile Computing
Issue number6
StatePublished - Aug 2008
Externally publishedYes


  • Ad hoc networks
  • Directional antennas
  • Medium access control protocol

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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