Observatorio de I+D+i UPM

Descripción
This paper presents an artificial noise strategy to increase physical-layer security in Cognitive Wireless Sensor Networks (CWSN). Spectrum sensing, information sharing and collaborative cognitive features are used to avoid eavesdropping attacks. Artificial noise generation is proposed to conceal the secret message to be transmitted. One important design parameter, the ratio of power allocated to the information bearing signal versus the artificial noise ? is defined. A simulation framework has been used to simulate different scenarios. The simulations results show that there is a near-optimal ? value, from 0.8 until 0.96 depending on the number of collaborator nodes, increasing with the number of relay nodes in the network. Also, the simulations show that the more nodes used for the collaboration strategy the less noise per signal is needed for the same Secrecy Outage Probability. As a result, the artificial noise strategy is seen to be highly effective for increasing the secrecy in CWSN
Internacional	Si
Nombre congreso	8th International Wireless Communications and Mobile Computing Conference
Tipo de participación	960
Lugar del congreso	Limassol, Cyprus
Revisores	Si
ISBN o ISSN	978-1-4577-1378-1
DOI	10.1109/IWCMC.2012.6314346
Fecha inicio congreso	27/08/2012
Fecha fin congreso	31/08/2012
Desde la página	1023
Hasta la página	1027
Título de las actas	Wireless Communications and Mobile Computing Conference (IWCMC), 2012 8th International

Esta actividad pertenece a memorias de investigación

• Autor: Alvaro Araujo Pinto (UPM)
• Autor: Elena Romero Perales (UPM)
• Autor: Octavio Nieto-Taladriz Garcia (UPM)
• Autor: Javier Blesa Martinez (UPM)

• Creador: Grupo de Investigación: Laboratorio de Sistemas Integrados (LSI)
• Departamento: Ingeniería Electrónica