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학술대회 Dynamic Duty Cycle Adaptation to Real-Time Data in IEEE 802.15.4 Based WSN
Cited 17 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
임재한, 장병태
Consumer Communications and Networking Conference (CCNC) 2008, pp.353-357
07MD1500, USN 인프라 기반 텔레매틱스 응용 서비스 기술개발, 박종현
The IEEE 802.15.4 standard [1] employs the periodic listen and sleep mechanism for supporting low power consumption. However, such a mechanism can cause long packet delay which makes it difficult to support the successful transmission of real-time data in time. In this paper, we present a new algorithm that adapts the duty cycle to the existence and status of real-time data in the IEEE 802.15.4 based WSN, in order to reduce the packet delay of real-time data and support time-bounded delivery of real-time data. By checking the existence and status of real-time data in the message queue of each device, the device determines whether it has to change the duty cycle. Through ns-2 simulation, we have shown that the network performance becomes better. © IEEE.
KSP 제안 키워드
Duty Cycle Adaptation, Duty cycle(DC), IEEE 802.15.4 standard, Network performance, Network simulator-2(NS2), Ns-2 Simulation, Packet Delay, Real-time data, dynamic duty cycle, low power consumption, message queue