Journal of Communications and Networks

  • 제14권3호
  • /
  • Pages.252-256
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  • 2012
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  • 1229-2370(pISSN)
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  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Cognitive Radio Based Resource Allocation in Femto-Cells

  • Oh, Dong-Chan (KIBO Korea Technology Finance Corporation) ;
  • Lee, Yong-Hwan (School of Electrical Engineering and INMC, Seoul National University)
  • 투고 : 2011.02.27
  • 심사 : 2011.12.19
  • 발행 : 2012.06.30
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초록

We consider resource allocation in femto-cell networks to maximize the throughput while minimizing interference to macro-users nearby. This can be achieved by allocating spectrum resource in a cognitive radio way. The proposed resource allocation is performed in two steps; spectrum sensing and resource scheduling. The femto base station detects idle frequency assignments (FAs) free from the occupation by macro-users and then allocates sub-channels in an idle FA to femto-users, effectively managing the interference problem. Finally, the effectiveness of the proposed scheme is verified by computer simulations.

키워드

참고문헌

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