Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7016
Title: Maximizing lifetime of event-unobservable wireless sensor networks
Authors: Bıçakcı, Kemal
Gültekin, Hakan
Tavlı, Bülent
Bağcı, İbrahim Ethem
Keywords: Wireless sensor networks
Contextual privacy
Transactional confidentiality
Privacy
Location privacy
Event-unobservability
Linear Programming
Issue Date: 2011
Publisher: Elsevier
Abstract: In wireless sensor networks (WSNs) contextual information such as the information regarding whether, when, and where the data is collected cannot be protected using only traditional measures (e.g., encryption). Contextual information can be protected against global eavesdroppers by periodic packet transmission combined with dummy traffic filtering at proxy nodes. In this paper, through a Linear Programming (LP) framework, we analyze lifetime limits of WSNs preserving event-unobservability with different proxy assignment methodologies. We show that to maximize the network lifetime data flow should pass through multiple proxies that are organized as a general directed graph rather than as a tree. (C) 2011 Elsevier B.V. All rights reserved.
URI: https://doi.org/10.1016/j.csi.2011.01.001
https://hdl.handle.net/20.500.11851/7016
ISSN: 0920-5489
1872-7018
Appears in Collections:Bilgisayar Mühendisliği Bölümü / Department of Computer Engineering
Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Endüstri Mühendisliği Bölümü / Department of Industrial Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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