A Multi-Channel MAC Protocol for Cognitive Radio

  • Gao, Xiang (Korea University of Technology and Education) ;
  • Zhu, Wen-Min (Korea University of Technology and Education) ;
  • Park, Hyung-Kun (Korea University of Technology and Education)
  • 고상 (한국기술교육대학교) ;
  • 축문민 (한국기술교육대학교) ;
  • 박형근 (한국기술교육대학교)
  • Published : 2010.05.27

Abstract

Opportunistic spectrum access (OSA) allows unlicensed users to share licensed spectrum in space and time with no or little interference to primary users, with bring new research challenges in MAC design. We propose a cognitive MAC protocol using statistical channel utilization information and selecting appropriate spectrum hole for multi-channel data transmission. The protocol based on the CSMA/CA, exploits statistics of spectrum usage for decision making on channel access.

Keywords