Secure transmission of information by digital chaotic signals

González Marcos, Ana y Martín Pereda, José Antonio (2004). Secure transmission of information by digital chaotic signals. En: "Advanced Free-Space Optical Communications Techniques and Technologies", 25/10/2004, London, UK.

Descripción

Título: Secure transmission of information by digital chaotic signals
Autor/es:
  • González Marcos, Ana
  • Martín Pereda, José Antonio
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Advanced Free-Space Optical Communications Techniques and Technologies
Fechas del Evento: 25/10/2004
Lugar del Evento: London, UK
Título del Libro: Proceedings of SPIE
Fecha: 8 Diciembre 2004
Volumen: 5614
Materias:
Palabras Clave Informales: Amplifiers ; Chaos ; Logic ; Optical communications ; Optical computing ; Receivers ; Semiconductor lasers ; Telecommunications
Escuela: E.T.S.I. Telecomunicación (UPM)
Departamento: Tecnología Fotónica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Protecting signals is one of the main tasks in information transmission. A large number of different methods have been employed since many centuries ago. Most of them have been based on the use of certain signal added to the original one. When the composed signal is received, if the added signal is known, the initial information may be obtained. The main problem is the type of masking signal employed. One possibility is the use of chaotic signals, but they have a first strong limitation: the need to synchronize emitter and receiver. Optical communications systems, based on chaotic signals, have been proposed in a large number of papers. Moreover, because most of the communication systems are digital and conventional chaos generators are analogue, a conversion analogue-digital is needed. In this paper we will report a new system where the digital chaos is obtained from an optically programmable logic structure. This structure has been employed by the authors in optical computing and some previous results in chaotic signals have been reported. The main advantage of this new system is that an analogue-digital conversion is not needed. Previous works by the authors employed Self-Electrooptical Effect Devices but in this case more conventional structures, as semiconductor laser amplifiers, have been employed. The way to analyze the characteristics of digital chaotic signals will be reported as well as the method to synchronize the chaos generators located in the emitter and in the receiver.

Más información

ID de Registro: 22833
Identificador DC: http://oa.upm.es/22833/
Identificador OAI: oai:oa.upm.es:22833
URL Oficial: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=852864
Depositado por: Biblioteca ETSI Telecomunicación
Depositado el: 11 Mar 2014 07:37
Ultima Modificación: 21 Abr 2016 20:33
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