Variable Meaning

α Propagation exponent (as in rα).

λ Signal wavelength.

σ Radar cross section (in same units as λ and Rmax).

θ Angle from earth station to antenna boresight.

admission Logical variable indicating whether an admission control system issues a grant to a device, or not.

Bradar Radar emission bandwidth.

Bsensed Instantaneous sensed bandwidth.

B Bandwidth in Hz.

bearing View angle from earth station to interference source.

Cnet Capacity of the network to deliver information.

C0 Mean transmission capacity.

dB dB(x) = 10log10(x).

D(n) Quantity of data delivered for user n.

dAP-C Distance from an access point to the most distant client that can be serviced.

dAP-V Distance from an access point to the closest interference victim that might be impacted by the AP or one of its clients.

dC-C Distance from an access point's client to the closest interference victim that might be impacted by the AP or one of its clients.

EffArchitecture Architecture effectiveness metric, in terms of data capacity, over the spectrum and area whose usage was precluded.

EffSpectrum Spectrum effectiveness, in terms of data delivered across a range, over the spectrum, area, and time whose usage is precluded.

elevation Angle to satellite above the horizon.

f Operating frequency (in MHz).

Gant Antenna gain over isotropic (in dB units).

GLNA Gain of the amplifier stage in volts.

I Interference power.

I0 Worst-case interference range, out to where other uses of the spectrum are precluded.

I(n) User n's interference range, out to a range where other users of the spectrum are precluded.

IIP2volts Second-order intercept point in volts.

IIP3volts Third-order intercept point in volts.

interference Logical variable indicating whether a grant issued by an admission control system issues will actually cause interference to a protected node or network.

k Boltzmann constant.

k Range ratio, namely the mean ratio of actual to maximum communications range.

LP Path loss over a general distance (d), or between two specific points (x, y).

lat Earth station latitude.