The Applied Research of Convolutional Turbo Code Based on WiMAX Protocol

Because most practical communication systems need possessing higher bandwidth efficiency, this article increases the bandwidth efficiency through the two aspects of code rate and modulation mode, that is, by combining CTC(convolutional turbo code) in WiMax protocol with MSK modulation and applying them in the practical communication systems. The simulation result shows the combination of CTC and MSK modulation possesses not only a stronger error correcting capability but also a higher bandwidth efficiency, i.e. , it´s more applicable in the practical communication systems.