where C, T, ω C, t 1, and t 2 are the maximum coherence value of the correlation coefficient, the inverse of the frequency bandwidth, the central angular frequency of the passband, and the start and end of the lag times used for the stretching technique, respectively.
Then, the effect of the bandwidth of central wavelengths on model performance was determined based on the interaction between central wavelength and bandwidth expansion.
Resource constraints include a limited energy, low bandwidth, limited processing capability of the central processing unit, limited storing capacity of the storage device, and short communication range.
Spectrum handoff is extremely challenging in CR networks, especially in cognitive radio mobile ad hoc networks (CR-MANETs), because of frequent topologic variations, limited power, limited channel transmission range, bandwidth constraints, and lack of the central controlling entity.
Each band in the frequency domain is bandwidth dependant of the filter central frequency.
The converter presents a broad conversion band with high polarization conversion ratio (>0.95) in terahertz frequency over a bandwidth which is 25.8% of the central frequency.
The results indicated that the optimal bandwidth varies with the changes of the central wavelength and with the interaction between the two bands in one vegetation index.
It sweeps the channel with a bandwidth of MHz around the central frequency GHz.
The proposed solution of the central frequency and bandwidth assignment for the CR consists of the following steps: the admission control, the bandwidth reservation, and the spectrum assignment.
Modulation introduces a spread of frequencies into the RF signal, but the frequency bandwidth of the net RF signal generally remains a small fraction of the central, carrier frequency.
