On Real-Time Capacity Limits of Multihop Wireless Sensor Networks

Authors:
Tarek F. Abdelzaher;Shashi Prabh;Raghu Kiran
Affiliations:
University of Virginia;University of Virginia;University of Virginia
Venue:
RTSS '04 Proceedings of the 25th IEEE International Real-Time Systems Symposium
Year:
2004

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Abstract

Multihop wireless sensor networks have recently emerged as an important embedded computing platform. This paper defines a quantitative notion of real-time capacity of a wireless network. Real-time capacity describes how much real-time data the network can transfer by their deadlines. A capacity bound is derived that can be used as a sufficient schedulability condition for a class of fixed-priority packet scheduling algorithms. Using this bound, a designer can perform capacity planning prior to network deployment to ensure satisfaction of applicationsý real-time requirements.