The KIPS Transactions:PartC (정보처리학회논문지C)

Korea Information Processing Society (한국정보처리학회)
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Performance Analysis of Handover Trigger Based on Signal Strength Measurement

신호 강도 측정 기반 핸드오버 결정 방법의 성능 분석

  • 박재성 (수원대학교 인터넷정보공학과) ;
  • 임유진 (수원대학교 정보미디어학과)
  • Published : 2007.12.31
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Abstract

Effective handover decision is important for providing seamless services to mobile users. In this paper, we propose an analysis framework to evaluate the performance of handover decision based on received signal strength (RSS) measurements in terms of the late notification and false alarm probability. In our framework, we consider mobility of a mobile user, signaling delays for exchanging messages related to handover protocols, cell sizes and RSS measurement interval to stabilize RSS reading due to random measurement errors. By quantitatively scrutinizing the impact of each parameter on the late notification and false alarms, we suggest the research directions for effective handover decision mechanism that may provide fast and reliable handover.

이동 중인 사용자에게 연속성 있는 서비스 제공을 위해서는 효과적인 핸드오버 결정 기법이 필요하다. 본 논문에서는 측정된 수신 신호 강도를 이용한 핸드오버 결정 방법의 성능을 늦은 통보와 오보율 측면에서 평가하기 위한 분석 모델을 제안한다. 제안 모델은 핸드오버 결정 기법의 성능에 영향을 미치는 사용자의 이동성, 핸드오버 프로토콜 메시지 교환 지연, 셀 크기 및 안정적인 수신 신호 강도 측정을 위한 수신 신호 강도 측정 주기를 모두 고려한다. 또한 본 논문에서는 제안한 분석 모델을 통해 각 인자들의 영향을 정량적으로 고찰하여 효과적인 고속 핸드오버 시작 시점 결정을 위한 연구 방향을 제시한다.

Keywords

References

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