title: Privacy-preserving data aggregation protocols for wireless sensor networks: a survey.
abstract: Many wireless sensor network (WSN) applications require privacy-preserving aggregation of sensor data during transmission from the source nodes to the sink node. In this paper, we explore several existing privacy-preserving data aggregation (PPDA) protocols for WSNs in order to provide some insights on their current status. For this, we evaluate the PPDA protocols on the basis of such metrics as communication and computation costs in order to demonstrate their potential for supporting privacy-preserving data aggregation in WSNs. In addition, based on the existing research, we enumerate some important future research directions in the field of privacy-preserving data aggregation for WSNs.
authors.affiliation: Department of Computer Engineering, Chonbuk National University, Chonju, Chonbuk 561-756, Korea. rabindra@dblab.chonbuk.ac.kr
authors.forename: Rabindra
authors.initials: R
authors.lastname: Bista
authors.forename: Jae-Woo
authors.initials: JW
authors.lastname: Chang
mesh_terms: D016000:Cluster Analysis; D003195:Computer Communication Networks / Q000295:instrumentation*; D003625:Data Collection; D008962:Models, Theoretical; D018907:Privacy; D059015:Wireless Technology / Q000295:instrumentation*