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학술지 QoS-Guaranteed Slot Allocation Algorithm for Efficient Medium Access in HR-WPAN
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저자
성정식, 이현정, 강태규, 허재두
발행일
201512
출처
ETRI Journal, v.37 no.6, pp.1242-1250
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.15.0115.0299
협약과제
13VC5100, 멜티센서 기반의 데이터 통신모듈과 드라이버 IC/프로세서 제어부품을 탑재한 200cc이하의 LED 시스템조명 엔진모듈 기술개발, 강태규
초록
It is very important to provide a parameterized quality of service (QoS) using traffic specification (TSPEC), such as mean data rate, maximum burst size, and peak data rate, when packets from the application layer need to be transmitted with guaranteed services in a high-rate wireless personal area network (HR-WPAN). As medium resources are limited, the optimal medium time required for each device needs to be estimated to share the resources efficiently among devices. This paper proposes a variable-service interval-based resource allocation algorithm to efficiently make a reservation of medium resources based on a parameterized QoS. In other words, the proposed algorithm calculates the number of medium access slots (MASs) based on TSPEC, local resources, and local conditions and determines suitable locations for the MASs within a superframe to accommodate more devices. The simulation results show that the proposed algorithm can accommodate more devices and has greater than 10% resource allocation efficiency in an HR-WPAN compared to existing schemes.
키워드
DRP, MAC resource allocation, MAS, QoS guarantee, Traffic specification
KSP 제안 키워드
Allocation efficiency, Existing schemes, Guaranteed services, High rate, Maximum burst size, Medium Access, Optimal medium, QoS guarantee, Resource allocation algorithm, Wireless personal area network(WPAN), application layer