Conception au niveau systeme de l'application de protocole sans fil Wimax

Now a days, Wireless systems are everywhere. They had a tremendous growth in recent years. From personnal area networks like bluethooth to local networks like Wifi, most of the communications systems contains wireless systems which have differents networks and users. A major problem of these systems is the interoperability and deployment of wireless networks. This is why a lot of research are made to find solutions and Wimax is one of them. Wimax (wireless interoperability for microwave access) is a metropolitan area network which use different transmission mode for pmp or mesh links to portable access due to OFDM modulation. With the improvement of Wireless technology and because of the tight costs and time-to-market constraints, the main challenge is to get fast and efficient design method. To meet these requirements, a method of conception, ESL is mainly used.;The main contribution of this work is the multilevel design on baseband of the PHY-OFDM layer of the IEEE 802.16 standard using an ESL (electronic system Level) environnement of software/hardware partitionning and the use of a multisystem cosimulation technique between the ESL model built with the SpaceStudio platform and a model built on Simulink for validation through cosimulation interfaces of heterogeous systems.;The conception flow of the application is declined on 3 part : the first part is the conception of a Simulink model which is used as a Testbench. The second part which is the core of our work represent the ESL based model. The third and last part is the FPGA implementation of the architecture created by the ESL platform.;This report is organized as follows: Chapter 1 discusses related work, Chapter 2 present the physical OFDM based layer of the IEEE 802.16 standard, Chapter 3 present the implementations of differents models, Chapter 4 discusses the results, the last Chapter present a conclusion of the report.;In this report, a design process of the physical layer of the IEEE 802.16 standard with the OFDM modulation using an ESL Eclipse-based platform of software/hardware platform is presented. This ESL environment, with his integrated tools, build embedded applications and architectures by refining the transaction-level communications to some pin and cycle-accurate protocols as well as the generation of synthesizable hardware from the system-level specifications. Those tools automate creation and modification of modules in an ESL design flow and make abstraction of all the implementation details to built an ESL architecture.;The results show how an ESL platform can provide an early mock-up of a design to refine it for an FPGA implementation and how it can use a cosimulation method for validation.