Guaranteeing Real-Time Services for Industrial Wireless Sensor Networks With IEEE 802.15.4

Autor:	Poh Kit Chong, Seong-eun Yoo, Daeyoung Kim, Eun-Chang Choi, Jae-Doo Huh, Yoonmee Doh, Minh-Long Pham
Rok vydání:	2010
Předmět:	Schedule business.industry Computer science Real-time computing Scheduling (computing) Extended superframe Control and Systems Engineering Sensor node Resource management Superframe Electrical and Electronic Engineering Transceiver business Wireless sensor network IEEE 802.15 Computer network
Zdroj:	IEEE Transactions on Industrial Electronics. 57:3868-3876
ISSN:	1557-9948 0278-0046
DOI:	10.1109/tie.2010.2040630
Popis:	Industrial applications of wireless sensor networks require timeliness in exchanging messages among nodes. Although IEEE 802.15.4 provides a superframe structure for real-time communication, a real-time message-scheduling algorithm is still required to schedule a large number of real-time messages to meet their timing constraints. We propose a distance-constrained real-time offline message-scheduling algorithm which generates the standard specific parameters such as beacon order, superframe order, and guaranteed-time-slot information and allocates each periodic real-time message to superframe slots for a given message set. The proposed scheduling algorithm is evaluated and analyzed extensively through simulations. In addition, a guaranteed time service is implemented in a typical industrial sensor node platform with a well-known IEEE 802.15.4-compliant transceiver CC2420 and ATmega128L to verify the feasibility of the guaranteed time service with the schedule generated by the proposed scheduling algorithm. Through experiments, we prove that the real system runs accurately according to the schedule calculated by the proposed algorithm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3a5fe89d4de64d45a9e9373c5c9d832f https://doi.org/10.1109/tie.2010.2040630 Zobrazit plný text záznamu