INTERFACAGE DES SYSTEMES CELLULAIRES CDMA AVEC LA TRANSMISSION PAR FIBRE OPTIQUE

The cellular radiocommunication systems evolution results from the increasing needs in bandwidth and subscription density. Thus, a system permitting the transportation of great quantity of informations is required in the transmission. In the present work is presented a solution permitting the use of the optical fiber as a system of transmission . For that, some theorical studies have been achieved concerning the concept of spreading spectrum technique as well as its use for the cellular radiocommunication systems and the Synchronous Digital Hierarchy SDH permitting the transmission by means of the optical fiber. A chapter is devoted to interface these two systems as well as the working systems of the different equipments used. A simulation permits to observe the behaviour of the system and to measure its performance by varying a certain number of technique parameters.