A Tone Dual-Channel DMAC Protocol in Location Unaware Ad Hoc Networks

위치 정보를 모르는 Ad hoc 네트워크에서 공간 재사용 증가를 위해 Tone을 사용한 Dual-Channel DMAC 프로토콜

  • Lee, Eun-Ju (Department of Telecommunication Engineering Cheju National University) ;
  • Kang, Chang-Nam (Department of Telecommunication Engineering Cheju National University) ;
  • Jwa, Jeong-Woo (Department of Telecommunication Engineering Cheju National University)
  • 이은주 (제주대학교 공과대학 통신공학과) ;
  • 강창남 (제주대학교 공과대학 통신공학과) ;
  • 좌정우 (제주대학교 공과대학 통신공학과)
  • Published : 2006.06.21

Abstract

Directional antennas are used to improve spatial reuse, but have the problem of deafness. The DUDMAC protocol uses the ORTS, OCTS, DDATA, and DACK mechanisms and a blocking algorithm for directional transmissions. In this paper, we propose a tone dual-channel directional MAC (Tone DUDMAC) protocol to improve spatial reuse. The Tone DUDMAC protocol uses the ORTS, DCTS, DDATA, and DACK mechanisms including the DDATA_tone and OCTS_tone. We use ORTS as that in DUDMAC because of location unawareness of neighbor's nodes. The DDATA_tone and OCTS_tone reduce a blocking area and improve spatial reuse. We confirm the throughput performance of the proposed MAC protocol by computer simulations using Qualnet ver.3.8 simulator.

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