Cross-layer enhanced source location privacy in sensor networks

Min Shao, Wenhui Hu, Sencun Zhu, Guohong Cao, Srikanth Krishnamurthy, Tom La Porta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

46 Scopus citations

Abstract

Source location privacy is an important issue in sensor network monitoring applications. It is difficult to be addressed by traditional security mechanisms, because an external attacker may perform simple traffic analysis to trace back to the event source. Solutions such as flooding or using dummy messages have the drawback of introducing a large amount of message overhead. In this paper, we avoid using network-wide dummy messages by utilizing beacons at the MAC layer. Beacons are sent out regularly, which essentially forms a constant-rate of dummy messages. Using beacons to replace the dummy messages may increase the delivery delay of event information because beacons are only sent out at the predefined beacon interval, but this latency can be controlled. To do this, we propose a crosslayer solution in which the event information is first propagated several hops through a MAC-layer beacon. Then, it is propagated at the routing layer to the destination to avoid further beacon delays. Simulation results show that our cross-layer solutions can maintain low message overhead and high privacy, while controlling delay.

Original languageEnglish (US)
Title of host publication2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON 2009
DOIs
StatePublished - 2009
Event6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON 2009 - Rome, Italy
Duration: Jun 22 2009Jun 26 2009

Publication series

Name2009 6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON 2009

Other

Other6th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON 2009
CountryItaly
CityRome
Period6/22/096/26/09

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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