Reliable and Secure Cooperative Communication for Wireless Sensor Networks Making Use of Cooperative Jamming with Physical Layer Security

Authors:
Vandana Milind Rohokale;Neeli Rashmi Prasad;Ramjee Prasad
Affiliations:
Center for TeleInFrastruktur, Aalborg University, Aalborg, Denmark;Center for TeleInFrastruktur, Aalborg University, Aalborg, Denmark;Center for TeleInFrastruktur, Aalborg University, Aalborg, Denmark
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

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Abstract

Interference is generally considered as the redundant and unwanted occurrence in wireless communication. This research work proposes a novel cooperative jamming mechanism for scalable networks like wireless sensor networks which makes use of friendly interference to confuse the eavesdropper and increase its uncertainty about the source message. The communication link is built with the help of Information theoretic source and channel coding mechanisms. The whole idea is to make use of normally inactive relay nodes in the selective Decode and Forward cooperative communication and let them work as cooperative jamming sources to increase the equivocation of the eavesdropper. In this work, eavesdropper's equivocation is compared with the main channel in terms of mutual information and secrecy capacity.