Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Efficient Radio Resource Measurement System in IEEE 802.11 Networks

IEEE 802.11 네트워크에서 효율적인 라디오 자원 측정 시스템 연구

  • Received : 2012.09.20
  • Accepted : 2012.10.19
  • Published : 2012.11.30
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Abstract

This paper presents the efficient measurement method of radio resource by analyzing various medium occupied elements. The medium occupied time consists of 802.11 frames, wireless interference, and protocol waiting time from a wireless node on a current channel. And it is used to performance metric. Existing research is only measured partial occupied elements, and is lack of validation of measurement unit and scalability on various IEEE 802.11 radio. This paper presents the measurement method of classified occupied elements. To achieve this, we modified 802.11n based OpenHAL device driver to collect the register information of wireless chipset, and to analyze receiving frames in an virtual monitor mode. We conclude accurate medium occupied time measurement system from various validation methods.

본 논문은 무선 매체의 점유 요인을 분석하여 효율적인 라디오 자원 측정 방법을 제안한다. 미디엄 점유 시간은 무선 단말이 현재 채널에서 802.11 프레임, 무선 간섭, 프로토콜 대기 시간에 의해 점유된 시간으로 다양한 분야에서 성능 측정 도구로 이용된다. 기존 연구들은 부분적인 요인만을 측정하고, 측정 도구에 대한 검증 및 다양한 라디오에 대한 확장성이 부족하다. 본 논문은 세분화된 점유 요인들의 측정 방법을 제안한다. 이를 위해 무선 칩셋의 레지스터 정보 수집, 가상 모니터 모드를 통한 프레임 분석을 위해 802.11n 기반 OpenHAL 디바이스 드라이버를 수정하였다. 뿐만 아니라 다양한 검증 방법을 통해 정확한 미디엄 점유 시간을 도출한다.

Keywords

References

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