A New Parallel Concatenated Coding Transceiver System Using Three Convolutional-Interleaver Sections

Abstract

Channel coding is an important stage in any communication system and is used for improving the Bit Error Rate (BER) performance in wireless digital communication systems in various communication channels such as the Additive White Gaussian Noise (AWGN), Rayleight, Ricean channels, and so on. One of the important types of channel coding is the Concatenated coding. This type of coding achieves low BER with large gain especially in the AWGN channel. In the presented paper, a new coding system is proposed and simulated based on parallel concatenated coding. Three convolutional encoders are used with various interleaver block length. The proposed coding system is simulated using Matlab package ver. R2007a. Low BER values are achieved with convolutional rate of 1/4 with interleaver length N = 4000 bit as compared with other interleaver length and convolutional rates.