Increasing of Information Reliability of Digital Systems with QAM/COFDM-Modulation

Ensuring of a high level of information reliability is one of the most important tasks of the synthesis of digital communication systems for various applications. In this paper for improving the reliability of the information in the systems with QAM/COFDM-modulated signal it is suggested to use the code signal sign on base of coders and decoders (codecs) with distributors on multiple delay lines (MDL); the advantages of the principle of self-synchronization while substantially reducing of the guard intervals in the structure of the transmitted signals are discussed; possibility of excluding the analog signals from the channel is shown.