NDLI: A New Approach to Task Allocation in Wireless Sensor Actor Networks

Content Provider	IEEE Xplore Digital Library
Author	Momeni, H. Sharifi, M. Sedighian, S.
Copyright Year	2009
Abstract	Since wireless sensor actor networks (WSANs) interact with critical physical environments, one of the important issues of WSANs is real-time considerations. Existing WSANs suffer from the lack of a real-time task allocation in support of real-time communication and coordination. In this paper we present a two level task allocation mechanism. We first break end-to-end periodic tasks into real-time jobs, and then use appropriate algorithms for sensing tasks and acting tasks. To formally state our approach, we propose a model for WSANs using graph transformation systems. Using this formalism we analyze the correctness of our algorithms. We show that the proposed algorithms guarantee that the tasks complete their activities before their deadlines expire. To show the efficiency of our algorithms we have simulated the model. Simulation results showed an improvement of 65 percent in deadline hit ratio comparing our approach to FIFO algorithm.
Starting Page	73
Ending Page	78
File Size	469029
Page Count	6
File Format	PDF
ISBN	9780769537436
DOI	10.1109/CICSYN.2009.51
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-23
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Wireless sensor networks Energy consumption Processor scheduling Clustering algorithms Computer architecture Sensor systems Computer networks Intelligent sensors Computational intelligence
Content Type	Text
Resource Type	Article

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