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Optimal QoS sampling frequency assignment for real-time wireless sensor networks

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4 Author(s)
Xue Liu ; Dept. of Comput. Sci., Univ. of Illinois, Urbana-Champaign, Urbana, IL, USA ; Qixin Wang ; Lui Sha ; Wenbo He

How to allocate computing and communication resources in a way that maximizes the effectiveness of control and signal processing has been an important area of research. The characteristic of a multi-hop real-time wireless sensor network raises new challenges. First, the constraints are more complicated and a new solution method is needed. Second, we need a distributed solution to achieve scalability. This paper presents solutions to both of the new challenges. The first solution to the optimal frequency allocation is a centralized solution that can handle the more general form of constraints as compared with prior research. The second solution is a distributed version for large networks using a pricing scheme. It is capable of incremental adjustment when utility functions change.

Published in:

Real-Time Systems Symposium, 2003. RTSS 2003. 24th IEEE

Date of Conference:

3-5 Dec. 2003