Engineering and Technology Journal

Abstract

This paper presents a class derived from convolutional code called turbo code. The
performance of turbo code is investigated through examining the effect of different constraint
length, the effect of changing rate, and the effect of interleaver on the performance of turbo
code with presence burst errors.
The performance of turbo code is investigates through computer simulation, by using
MATLAB program.
The simulation encoder is composed of two identical RSC component encoder with parallel
concatenated, separated by interleaver.The turbo code simulation results are shown
graphically for different constraint length, in hard and soft decision. Also the simulation
results are shown for case with interleaver and without interleaver.