Performance Analysis of Reed-Solomon Codes Concatenated with Convolutional Codes over AWGN Channel

Kattaswamy Mergu

doi:10.11591/aptikom.j.csit.100

Abstract

With rapid growth in today’s technology, digital communication is playing a major role to provide hostile environment to meet various applications. In this communication, Coding plays a prominent role to contribute error free transmission through channel coding which improves capacity of a channel by adding some redundant bit to the original information. One way to provide a better performance of the communication system is by concatenating different types of channel coding techniques. The concatenation can be done either in parallel or serial. The primary aim of this paper is to concatenate the Reed-Solomon codes with Convolutional codes in series, which provides better results comparing with single coding techniques. The performance of the concatenation of Reed-Solomon codes with Convolutional codes can be evaluated by finding bit error rate with various values of signal-to-noise ratio over AWGN channel. The analytical result has been obtained by using MATLAB/OCTAVE.

Highlights

The function of the communication system is to transfer information from one source to another source called destination, through a communication channel
The purpose of the transmitter is to transform the message signal produced by the source of information into a form suitable for transmission over the channel
The sender encoders the data being sent by adding redundant bits, and receiver decodes the received string attempting to discover the location of the errors and correcting the errors

Summary

Introduction

The function of the communication system is to transfer information from one source (or point) to another source called destination, through a communication channel. The purpose of the transmitter is to transform the message signal produced by the source of information into a form suitable for transmission over the channel. The receiver has the task of operating on the received signal so as to reconstruct a recognizable form of the original message signal and to deliver it to the user destination. The sender encoders the data being sent by adding redundant bits, and receiver decodes the received string attempting to discover the location of the errors and correcting the errors. The field of channel coding is concerned with sending a stream of data at the highest possible rate over a given communication channel and decoding the original data reliably at the receiver using encoding and decoding algorithms. Concatenation codes form a class of error correcting codes used to achieve a low bit error rate

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