Localized Flooding Backbone Construction for Location Privacy in Sensor Networks

Source and destination location privacy is a challenging and important problem in sensor networks. Nevertheless, privacy preserving communication in sensor networks is still a virgin land. In this paper, we propose to protect location privacy via a flooding backbone, which is modeled by a minimum connected dominating set (MCDS) in unit-disk graphs. We design an efficient and localized algorithm to compute an approximate MCDS. Theoretical analysis indicates that our algorithm generates a connected dominating set (CDS) with a size at most 148 · opt + 37, where opt is the cardinality of a MCDS. To our best knowledge, this algorithm is the first localized algorithm with a constant performance ratio for CDS construction in unit-disk graphs.

• Type: Conference
• Year: 2007
• Where: SNPD
• Authors: Yingchang Xiang, Dechang Chen, Xiuzhen Cheng, Kai Xing, Min Song
• Keywords: Artificial Intelligence, Connected Dominating Set, Location Privacy, Sensor Networks, SNPD 2007