Desarrollo de una aplicación para analizar el impacto de la longitud del prefijo cíclico en sistemas OFDM.

Abstract

The objective of this titration project is to develop an application in MATLAB to analyze the impact of cyclic prefix length in OFDM (Orthogonal Frequency Division Multiplexing) systems. The application will display the results in terms of BER (Bit Error Rate) vs SNR (Signal to Noise Ratio) and BER vs delay. In chapter one the theoretical framework of the project is described, OFDM systems are analyzed, specifically the cyclic prefix, later a brief study of the wireless channel and channel models is carried out: AWGN, Rayleigh and Rician. Chapter two details how the application is implemented in MATLAB, specifically in App Designer. For this, the constitutive blocks of the application are analyzed, for example, the panel for the general configuration of the parameters by the user, and the presentation of the results according to the terms indicated above. The results obtained from the application performance tests and the validation of the results presented by the application. Finally, in chapter four the conclusions reached at the end of the project are presented.