한국통신학회논문지 B : 네트워크 및 융합 서비스, v.35, no.9, pp.1305-1313
ISSN
1226-4717
Publisher
한국통신학회 (KICS)
Language
Korean
Type
Journal Article
Abstract
지난 몇 년간 무선 개인 거리 네트워크는 (WPAN)는 다양한 건강관리 응용분야에서 널리 연구되어왔다. 그러나, 하드웨어 장치의 한계성으로 인해 WPAN의 효용성에 대한 문제점이 도출되었다. 이를 개선하고자 무선 인체통신 네트워크 (WBAN: Wireless Body Area Network)의 개념이 탄생하였고 이러한 WBAN을 위하여 다용도의 MAC계층 프로토콜을 설계할 필요성이 대두됐다. 더불어, 환자에게 긴급 상황이 발생했을 경우, 최종 목적지로 긴급메세지가 전해지는 우선권을 가진 메커니즘이 필요하게 되었다. 본 논문은 WBAN을 위한 복합 우선순위 MAC이라 일컬어지는 우선순위 메커니즘에 대해 기술한다. 또한, 시뮬레이션의 확장을 통해, 평균 패킷 지연 시간을 최소화 할 수 있는 MAC 프로토콜을 제안한다. 이들을 통해, 환자에게 긴급 상황이 발생했을 때 충분한 도움시간과 의학적 치료지원 시간이 제공 될 수 있도록 한다. NS-2를 기반으로 한 성능평가 시뮬레이션을 통해, 우리의 복합 우선순위 MAC의 뛰어난 성능과 유용성을 입증한다.
KSP Keywords
body area network(BAN), wireless body area network
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