Diseño, simulación e implementación de códigos de canal en sistemas ofdm

Abstract

Communication systems look for transmitting a message from one end to another reliably; throw a channel in which the signals can suffer attenuation, delay and interference. To mitigate some of this effects it has been designed the OFDM modulation which improves data transmitting over wide bands using orthogonal subcarriers to each other, each one containing information. However, this systems is vulnerable to the effects of flat channels and frequency selective channels, as a consequence the signal is distorted introducing errors in frames. One of the techniques to improve the performance of these systems is through the channel coding. In this document the performance of an OFDM communication system with error rate parameter, for a linear block coding with rate R=2/5 and convolutional coding rate R=1/3 is analyzed.