The expressions for the error probability, the average number of possible repetitions, and the average consumption of energy for the coded communication system with information feedback are obtained. A simple effective method of the threshold control in the feedback channel receiver is suggested when the Gaussian noise is present in the system. This method makes possible to avoid the useless consumption of energy in the coded system when the signal to noise ratio on the feedback channel is small and to improve the efficiency in other cases. A new technical patented scheme of a processing algorithm is described.
Keywords: Coded communication system with information feedback, Gaussian white noise, linear systematic codes, error probability, feedback communication systems, information feedback, CSIF functioning, cosmic pathfinders, phase modulation, threshold functioning, channel coder, repetitions
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