Privacy preservation in wireless sensor networks: A state-of-the-art survey

Na Li, Nan Zhang, Sajal K. Das, Bhavani Thuraisingham

Research output: Contribution to journalArticlepeer-review

274 Scopus citations


Much of the existing work on wireless sensor networks (WSNs) has focused on addressing the power and computational resource constraints of WSNs by the design of specific routing, MAC, and cross-layer protocols. Recently, there have been heightened privacy concerns over the data collected by and transmitted through WSNs. The wireless transmission required by a WSN, and the self-organizing nature of its architecture, makes privacy protection for WSNs an especially challenging problem. This paper provides a state-of-the-art survey of privacy-preserving techniques for WSNs. In particular, we review two main categories of privacy-preserving techniques for protecting two types of private information, data-oriented and context-oriented privacy, respectively. We also discuss a number of important open challenges for future research. Our hope is that this paper sheds some light on a fruitful direction of future research for privacy preservation in WSNs.

Original languageEnglish (US)
Pages (from-to)1501-1514
Number of pages14
JournalAd Hoc Networks
Issue number8
StatePublished - Nov 2009

All Science Journal Classification (ASJC) codes

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications


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