The KIPS Transactions:PartC (정보처리학회논문지C)

Korea Information Processing Society (한국정보처리학회)
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A Window based Resource Reservation Scheme to Improve Bandwidth Utilization in Mobile Networks

모바일 네트워크에세 대역폭 이용율 향상을 위한 윈도우 기반의 자원 예약 기법

  • Published : 2006.04.01
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Abstract

In this paper, we propose a window based resource reservation scheme to minimize an waste bandwidth due to resource reservation in mobile networks. Specially, this scheme decides a proper timing to reserve resource by using the number of movement, which is provided by the differentiated handoff estimation model, among inner regions. In the previous resource reservation scheme[6], it requests a resource reservation to neighboring cells as soon as a mobile host enters or creates into a cell. But, after a proper time based on the number of movements in the differentiated handoff estimation model passes, the proposed scheme requests a resource reservation to neighboring cells. Because of this reason, it can improve resource utilization on mobile networks. And, this scheme differentiates resource reservation according to a request ratio for resource reservation to each neighboring cell. Also, this scheme improves resource reservation acceptance rate and bandwidth utilization.

본 논문에서는 모바일 네트워크에서 자원 예약으로 인해서 낭비되는 무선 자원을 개선하기 위한 윈도우 기반 자원 예약 기법을 제안한다. 특히 이 기법은 차별화 된 핸드오프 예측 모델을 기반으로 모바일 호스트들이 셀에서 이동하는 횟수를 이용하여 적절한 자원 예약 시점을 결정한다. 기존의 자원 예약 기법에서는 모바일 호스트가 셀에 도착하거나 생성되면 바로 자원 예약을 요청한다. 그러나 본 논문에서 제안하는 기법은 차별화 된 핸드오프 예측 모델에서 제공하는 추정된 내부 영역 이동 횟수를 기반으로 일정 시간이 경과한 후에 자원을 예약하므로 자원 이용율을 향상시킬 수 있다. 그리고 이웃 셀들에 대한 자원 예약 요청 비율에 따라 차별화 된 자원 예약을 실시하여 전체적인 자원 예약 성공율 및 대역폭 이용율을 향상시킨다.

Keywords

References

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