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Cooperative jam Technique to Increase Physical-layer Security in CWSN

Authors:
Alvaro Araujo
Javier Blesa
Elena Romero
Octavio Nieto-Taladriz

Keywords: WSN; cognitive; jamming; collaborative; security

Abstract:
This paper considers the problem of secure communication in Wireless Sensor Networks in the presence of non-colluding passive eavesdroppers. Cognitive networks capabilities such as spectrum sensing, share information and collaboration to optimize the communications can be used to avoid attacks. A collaborative jamming technique is proposed to increase Cognitive Wireless Sensor Networks security and a counter measurement against eavesdropped attacks. Three types of scenarios are defined: attacker location known, attacker location unknown, and attacker and relay co-location. Each new scenario adds a difficulty to the countermeasure to the previous one. Simulations show as Secrecy Outage Probability decreases until 10% with a standard number of relay nodes in the network. As a result, cooperative jamming strategies are seen to be highly effective for increasing the secrecy in Wireless Sensors Networks.

Pages: 11 to 14

Copyright: Copyright (c) IARIA, 2012

Publication date: April 29, 2012

Published in: conference

ISSN: 2308-4251

ISBN: 978-1-61208-197-7

Location: Chamonix, France

Dates: from April 29, 2012 to May 4, 2012