Performance of a communication system with information feedback by using an entire systematic code scheme and a divided code scheme

The performance of the communication systems with information feedback driven by white Gaussian noise is analyzed. We are considering two cases of performance of these kinds of communication systems: when they are using code schemes on both channels and when they used a divided code scheme. On the basis of general expressions for these communication systems, we determine the main statistic parameters of some common code schemes. Finally, we compare the performance of this two methods graphically.