FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication equipment and can be used for wireless data transmission. Computing devices implement communication using new signals developed to reduce failures for primary band users. These new signals can be shaped by measurement or other determination of signals used by primary users and development of signals using a modulation circuit or other parameters of signals, which provide for inconsiderable failure for primary users. Such methods make non-used and/or insufficiently used sections of a radio spectrum, such as empty gaps between television channels accessible for users. New signals can be generated based on software-defined radio devices inside computing devices or by switching between modulation circuits supported with common wireless cards of a network interface.
EFFECT: technical result consists in improvement of demodulation efficiency of a received signal.
19 cl, 12 dwg
