Optimization of a Software Defined Radio multi-standard system using Graph Theory

Dedications To my parents i Acknowledgments First of all, I want to thank God for giving me the patience, will, and courage to finish this thesis and has bestowed upon me his blessings all along these years. Many have provided me with help and encouragement during this thesis and it is my pleasure to acknowledge their guidance and support. I would like to begin by conveying my deep and sincere gratitude to my devoted supervisors , Professor Amine EL SAHILI and Professor Yves LOUET for their continuous help and understanding, and for always believing in my capabalities especially when I was lost for a while. With all their support, I started an exciting research journey and was able to draw a map of this journey, hoping that it can lead the way for useful results in the future. I wish to express my warmest thanks to my parents who have given me endless love and support in all my decisions, and for all their understanding and patience throughout my educational life. I am very thankful to Professor Francis LAU and Professor Stphane PERENNES for first having accepted to review my thesis, and then their precious time for reading and evaluating the work. I am grateful to Professor Oussama BAZZI for honoring me by accepting to be the chair person of my committee. I would like to further thank Dr. Samer LAHOUD and Dr. Ali AL GHOUWAYEL for accepting to participate to my committee and their valuable remarks. I want to thank Dr. Ali AL GHOUWAYEL for having presented my supervisors one to another, thus participating to create this successful joint Ph.D work between the two universities ; the Lebanese University (Hadath Campus) and Suplec (Rennes campus). I wish to thank all my friends for their friendship and the pleasant atmosphere that they have created inside and outside the SCEE lab. I particularly want to thank my dear friend and colleague Salma BOURBIA for her major contribution to practice and improve my French language, as well as her availability and help concerning any queries or problems that I have faced in the programming field during my thesis work. Finally, I would like to acknowledge the financial support provided by EGIDE (Centre franà §ais pour l'Accueil et les changes internationaux) and the AUF (Agence Universi-taire de la Francophonie) during some periods of my Ph.D studies.