Osypchuk S. Improving the information efficiency of wireless transmission systems on the basis of reallocation the communication channel resources.

The aim of the research is to develop ways to improve the information efficiency of wireless communication systems based on the redistribution of channel resources. Studies are conducted using the following methods for communication channel resource reallocation: OFDM, multi-position modulation, LDPC. The following methods are proposed: method for determining the optimal frequency and power conditions reallocation of resources in the channel with known parameters in the emission the OFDM signals; the method for determining ultra-long block LDPC codes for predetermined characteristics of reliability in the known channel parameters; the method of forming a signal-code constructions for the channel with known parameters with using OFDM; method for adaptive selecting a modulation type, characterized in that it uses best performance in a spatial region of the base station radiation, and allows to determine the preferred form of modulation for each terminal depending on the distance from the base station to maximize performance criterion wireless communication system.