Abstract
An Underwater Acoustic Wireless Sensor Network (UA-WSN) consists of many resource-constrained Underwater Sensor Nodes (USNs), which are deployed to perform collaborative monitoring tasks over a given region. One way to preserve network connectivity while guaranteing other network QoS is to deploy some Relay Nodes (RNs) in the networks, in which RNs’ function is more powerful than USNs and their cost is more expensive. This paper addresses Constrained Low-interference Relay Node Deployment (C-LRND) problem for 3-D UA-WSNs in which the RNs are placed at a subset of candidate locations to ensure connectivity between the USNs, under both the number of RNs deployed and the value of total incremental interference constraints. We first prove that it is NP-hard, then present a general approximation algorithm framework and get two polynomial time O(1)-approximation algorithms.
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Li, D., Li, Z., Ma, W., Chen, W. (2010). Constrained Low-Interference Relay Node Deployment for Underwater Acoustic Wireless Sensor Networks. In: Wu, W., Daescu, O. (eds) Combinatorial Optimization and Applications. COCOA 2010. Lecture Notes in Computer Science, vol 6509. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17461-2_23
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DOI: https://doi.org/10.1007/978-3-642-17461-2_23
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-17460-5
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