Performance Analysis of Error Correction Code for Mobile OFDM System Using Channel Modelling

Spectral efficiency is one of the important parameter in order to achieve higher performance in mobile communication environment using modulation and Coding technique. In mobile communication applications higher capacity and data rates is the basic requirement for the reliable communication Forward error correction coding such as convolutional coding (CC) is applied to improve the BER and spectral efficiency of a OFDM system. In this paper, we present the performance of OFDM system with different modulation techniques (16-PSK and 16-QAM) by using forward error correcting codes (convolution code and Reed Solomon code). We performed simulation for RS-CC codes. Here the outer code is RS code and the inner code is CC. The information bits go into the RS encoder and the output of RS encoder is the input of the CC encoder. Performance analyzed using Matlab simulator.