Spectrum sensing and information transmission method with energy collection in cognitive wireless network
A cognitive wireless network and information transmission technology, applied in transmission monitoring, transmission systems, electrical components, etc., can solve the problem of energy reduction in spectrum sensing, and achieve the effects of no need for replacement, improved reliability, and extended service life
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[0025] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0026] Such as figure 1 As shown, the primary user transmitter PU T and receiver PU R In the primary user network, there is one cognitive user SU and N cognitive relays in the cognitive wireless network, denoted as {SR i |i=1,2,...,N}, where SU has the function of collecting space radio frequency signal energy, figure 2 is a time slot diagram, and the period of spectrum sensing and information transmission is T, which is divided into the primary user detection phase, the reporting phase and the data transmission phase in time order, and the time is τ respectively D T, τ R T and (1-τ D -τ R ) T, τ D and τ R are the overheads of detection primary user stage and report stage respectively,...
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