A MAC Protocol with Directional Antennas for Deafness Avoidance in Ad Hoc Networks

  title={A MAC Protocol with Directional Antennas for Deafness Avoidance in Ad Hoc Networks},
  author={Masanori Takata and Masaki Bandai and Takashi Watanabe},
  journal={IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference},
Directional antennas are expected to provide significant improvements over omni-directional antennas in wireless ad hoc networks. Directional MAC protocols, however, introduce new kinds of problems arising from directivity. One major problem is deafness, caused by a lack of state information from neighbor nodes (i.e., idle or busy). This paper proposes DMAC/DA (Directional MAC with Deafness Avoidance) to overcome the deafness problem. In DMAC/DA, WTS (Wait To Send) frames are transmitted by the… CONTINUE READING
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