Ber Analysis Based On Convolutional Coded Ofdm For Digital Audio Broadcasting System

Abstract

Wireless communications is a primary constituent of communication domain which supports wide range of wireless technologies ranging from ultra-small to ultra-large distances. High data rates, low complexity and interference-free system are the requirements of modern communication systems; OFDM model satisfies all the requirements with ease and became the best alternative for applications like 3GPP, 4G-LTE, Wi-Fi and WiMAX. Coded OFDM is designedto meet the desired requirements of DAB application with high accuracy. The convolutional channel based multimedia signal broadcasting scheme is proposed in this work. It is shown in the experimental results that the turbo codes prove to be better when the input data is a low data rate signal. However, for high data rate signal like speech and image convolutional codes proves a better choice.