False Data Elimination in Heterogeneous Wireless Sensor Networks Using Location-Based Selection of Aggregator Nodes

ABSTRACT

The false data injected by the compromised sensor nodes in heterogeneous wireless sensor networks are not only a threat to data integrity but also consume bandwidth and power unnecessarily. The existing mechanisms for eliminating the injected false data are carried out with a fixed set of aggregator nodes. This causes battery drain at the aggregator nodes, leading to reduced network lifetime. Hence, it is necessary to reduce the battery drain by changing the aggregator nodes at regular intervals. The periodic change of aggregator nodes introduces the problem of pair-wise key establishment among the sensor nodes. This paper aims at eliminating the injected false data in heterogeneous wireless sensor networks. It also addresses the issue of battery drain at the aggregator nodes by periodically selecting the aggregator nodes based on location, exploiting the heterogeneity of the sensor nodes in the network. The problem of pair-wise key establishment is resolved by using a suitably modified cryptographic scheme based on Jacobian elliptic Chebyshev rational map. This modification is due to the fact that the original scheme is easily breakable.

Keywords:

• False data elimination
• Heterogeneous wireless sensor networks
• Jacobian elliptic Chebyshev rational map
• Location-based aggregator selection
• Pair-wise key establishment

Additional information

Notes on contributors

M. K. Sandhya

M.K. Sandhya received her Bachelor of Engineering in computer science and engineering from Easwari Engineering College for Women affiliated to University of Madras and Master of Engineering in computer science and engineering from Sri Venkateswara College of Engineering affiliated to Anna University, Chennai. She is currently pursuing research at Anna University. Her area of research is security issues in wireless sensor networks. She is a life member of ISTE.

E-mail: [email protected]

K. Murugan

K. Murugan received his PhD degree under the Faculty of Information and Communication Engineering at Anna University, Chennai. He did his Master degree in computer science and engineering, at National Institute of Technology (Formerly REC), Tiruchirapalli. He is currently working as associate professor in Ramanujan Computing Centre, Anna University, Chennai, India. He is a life member of ISTE, IETE and CSI. His area of interest includes mobile computing, MANETs and wireless sensor networks.

E-mail: [email protected]

P. Devaraj

P. Devaraj received Master of Science degree in mathematics from Manonmaniam Sundaranar University in 1993 and Master of Philosophy degree in mathematics from Department of Mathematics, Madurai Kamaraj University in 1994. He has obtained his PhD degree in harmonic analysis from Indian Institute of Technology, Bombay in 2000. He has also worked for two years in the Research and Development laboratory of Tata Infotech Ltd. He is currently working as assistant professor in the Department of Mathematics, College of Engineering Guindy Campus, Anna University, Chennai, India. His research interests include cryptography, image processing and harmonic analysis.

E-mail: [email protected]