PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

Exact and approximate balanced data gathering in energy-constrained sensor networks
Patrik Floréen, Petteri Kaski, Jukka Kohonen and Pekka Orponen
Theoretical Computer Science 2004.


We consider the problem of gathering data from a wireless multi-hop network of energy-constrained sensor nodes to a common base station. Specifically, we aim to balance the total amount of data received from the sensor network during its lifetime against a requirement of sufficient coverage for all the sensor locations surveyed. Our main contribution lies in formulating this balanced data gathering task, studying the effects of balancing, and proposing an approximation algorithm for the problem. Based on an LP network flow formulation, we present experimental results on both optimal and approximate data routing designs, in open transmission ranges and with impenetrable obstacles between the nodes.

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EPrint Type:Article
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Theory & Algorithms
ID Code:316
Deposited By:Jukka Kohonen
Deposited On:05 December 2004