ELECO 2009 Invited Talks

COGNITIVE & ENCRYPTED COMMUNICATIONS Yahya LAKYS1, Balwant GODARA2, Alain FABRE1 1IMS - ENSEIRB, UMR 5218 CNRS, 1 Avenue du Dr. Schweitzer, BP 99, Talence 33402, France E-mails: yahya.lakys@ims-bordeaux.fr and fabre@ims-bordeaux.fr 2Institut Supérieur d’Electronique de Paris, 28 rue Notre Dame des Champs Paris 75006, France E-mail: bgodara@isep.fr Abstract – Several communications techniques are currently being investigated: software radio, cognitive radio and encrypted communications are first of all presented in the first part of this paper. The second part makes the state of the art of research on agile and reconfigurable filters, passive as well as active, necessary for transceivers.