Earticle

초록

영어

Recently, cognitive radio (CR) technology is broadly applied even to sensor networks. Cognitive radio sensor networks (CRSNs) have been studied and, apparently, sensor nodes equipped with directional antennas achieve higher energy efficiency. This paper proposes a medium access control (MAC) protocol named directional CR-aware MAC (DC-MAC) for CRSNs. To the best of the authors’ knowledge, this is the first work to propose a MAC protocol for CRSNs with directional antennas. The simulation study shows that DC-MAC is more energy efficient than the conventional protocol by 50%–60% for the RMF TR 1001 transceiver and by 20%–50% for the Bluetooth transceiver.

목차

Abstract
 1. Introduction
 2. Issues with Directional Antennas
  2.1. New Hidden Terminal Problem
  2.2. Deafness
  2.3. Blocking Problem
  2.4. Neighbor Location and Discovery
 3. Directional CR-Aware MAC Protocol
 4. Energy Efficiency Evaluation
  4.1. Energy Consumption
  4.2. Simulation Setting
  4.3. Simulation Results
 5. Conclusions
 Acknowledgements
 References

키워드

저자

• Han Su [ China Post, Suzhou, China ]
• Sangman Moh [ Dept. of Computer Eng., Chosun Univ., Gwangju, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605