期刊
AD HOC NETWORKS
卷 6, 期 4, 页码 621-655出版社
ELSEVIER
DOI: 10.1016/j.adhoc.2007.05.003
关键词
Node placement; Positioning; Wireless sensor networks; Node relocation
The major challenge in designing wireless sensor networks (WSNs) is the support of the functional, such as data latency, and the non-functional, such as data integrity, requirements while coping with the computation, energy and communication constraints. Careful node placement can be a very effective optimization means for achieving the desired design goals. In this paper, we report on the current state of the research on optimized node placement in WSNs. We highlight the issues, identify the various objectives and enumerate the different models and formulations. We categorize the placement strategies into static and dynamic depending on whether the optimization is performed at the time of deployment or while the network is operational, respectively. We further classify the published techniques based on the role that the node plays in the network and the primary performance objective considered. The paper also highlights open problems in this area of research. (C) 2007 Elsevier B.V. All rights reserved.
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