한국통신학회논문지 B : 네트워크 및 융합 서비스, v.28, no.12A, pp.975-982
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
본 논문에서는 이동 패킷망에서 단말의 핸드오프에도 불구하고 QoS를 지속적으로 보장하기 위한 방안으로서의 연결 수락 제어 기법을 제시하고자 한다. 제안하는 연결 수락 제어 기법은 기본적으로 시간 선택적 대역 예약 방식을 기반으로 하고 있으면서도 예약 메카니즘을 단순화하여 시그널링 및 컴퓨팅 오버헤드를 줄이고 있다. 또한, 예약 파라미터들에 대한 적응적 제어를 통해 연결 수락 제어의 성능을 최적화하고 있다. 컴퓨터 모의 실험을 통해 제안하는 연결 수락 제어 기법에 대한 성능 평가를 하였으며, 그 결과 대역폭을 예약하지 않는 방식에 비해 신규호 차단확률 및 대역폭 이용 효율의 저하는 감내할 수 있는 수준을 유지하면서 핸드오프 차단 확률은 현격히 좋아짐을 확인하였다.
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