한국통신학회논문지 (The Journal of Korean Institute of Communications and Information Sciences)

  • 제40권8호
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  • Pages.1469-1476
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  • 2015
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
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코드북 기반 SIR 향상 빔 형성 기법

Code-Book Based Beamforming Techniques for Improving SIR

  • 투고 : 2015.06.19
  • 심사 : 2015.08.04
  • 발행 : 2015.08.31
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초록

본 논문은 원형배열 안테나를 사용하는 무선 메쉬 네트워크 환경에서 코드북을 이용한 다중 섹터 빔 형성시 섹터간 SIR 향상 빔 선택 알고리즘을 제안한다. 제안된 빔 선택 알고리즘은 피드백 되는 코드북 인덱스 조합에 따라 상호간 SIR을 향상시키는 빔 선택방법과 QoS를 보장하는 방법에 관한 내용이다. 전산 모의 실험을 통해 노드들이 섹터경계에 있을 경우 제안한 방법이 기존의 코드북 선택 방법보다 SIR이 4.42dB 우수함을 보였다. QoS를 위해 PF를 적용할 경우 기존보다 SIR이 1.70dB만큼 향상됨을 보였고 사용자간 QoS도 만족시킴을 보였다.

We propose a beam selection algorithm that improves inter sector SIR using a code-book of a circular array antenna in multi-sector wireless mesh network environments. The proposed method improves SIR using a combination of fed back code-book and guarantees QoS of all nodes. Computer simulation exhibits the proposed scheme demonstrates 4.42dB higher SIR than that of the conventional code-book method, QoS with proportional fair is improved by 1.70dB and fact that all nodes are satisfied Qos is also shown.

키워드

참고문헌

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