Data Providers: CommSystem: Cumulative Density Function

Cumulative density function is the probability that a parameter is less than or equal to a particular value. It's the integral of a probability density function up to this value. For a given parameter, this report provides each value, the number of samples less than this value, the percentage (i.e. probability mentioned above) and a log of the percentage.

Name	Description
Rcvd. Iso. Power	Received isotropic power is the power at the receiver before the pre-receive gains/losses and the receiver antenna gain added (in dBW). It is equal to the EIRP with all the channel losses as well as the bandwidth overlap applied.
Flux Density	The power from the desired transmitter crossing a unit area normal to the direction of wave propagation.
Spectral Flux Density	The dimensions are watts/(m^2 * Hz). The power is computed across the receiver's bandwidth (as seen by the receiver's RF front end). The bandwidth is the receiver's total bandwidth.
Rcvr Gain	Receiver Gain is the antenna gain (in dBi) of the receiver which is dependent on the antenna type used.
Tequivalent	The equivalent system temperature (in K) is specified by the user as a constant value or computed at each time step from the receiver system temperature parameters defined by the user.
g/T	G/T = (Receiver Gain)/(System Temperature at the Receiver). The ratio of the receive antenna gain G to the total system temperature T is the "figure of merit" for the receiver (in dB/K). The figure of merit is independent of the point where it is calculated. However, the gain and system temperature must be specified at the same point.
C/No	The carrier to noise density ratio (C/No) where C is the carrier power and No = kT (Boltzmann's constant x system temperature) is the noise density. It is equivalent to C/N with a normalized Bandwidth (B=1).
C/(No+Io)	The carrier to (noise + interference) ratio (C/(No+Io)) where C is the carrier power, No = kT (Boltzmann's constant * system temperature) and Io = interference power spectral density.
C/N	The carrier to noise ratio (C/N) where C is the carrier power and N = kTB (Boltzmann's constant x system temperature x bandwidth) is the noise power.
C/(N+I)	The carrier to (noise + interference) ratio (C/(N+I)) where C is the carrier power, N = kTB (Boltzmann's constant * system temperature * bandwidth) and I = interference power.
Eb/No	The energy per bit to noise ratio (Eb/No) where Eb is the energy per bit and No = kT (Boltzmann's constant * system temperature).
Eb/(No+Io)	The energy per bit to (noise + interference) ratio (Eb/(No+Io)) where Eb is the energy per bit, No = kT (Boltzmann's constant * system temperature) and Io = interference power spectral density.
C/I	C/I is the carrier power from the desired signal over the sum of all interferer powers.
Delta T/T	The ratio of interference power spectral density Io and receiver noise spectral density No.
Pwr Flux Density	The power crossing a unit area normal to the direction of wave propagation in watts per square meter (W/m^2).

Name

Description

Rcvd. Iso. Power

Received isotropic power is the power at the receiver before the pre-receive gains/losses and the receiver antenna gain added (in dBW). It is equal to the EIRP with all the channel losses as well as the bandwidth overlap applied.

Flux Density

The power from the desired transmitter crossing a unit area normal to the direction of wave propagation.

Spectral Flux Density

The dimensions are watts/(m^2 * Hz). The power is computed across the receiver's bandwidth (as seen by the receiver's RF front end). The bandwidth is the receiver's total bandwidth.

Rcvr Gain

Receiver Gain is the antenna gain (in dBi) of the receiver which is dependent on the antenna type used.

Tequivalent

The equivalent system temperature (in K) is specified by the user as a constant value or computed at each time step from the receiver system temperature parameters defined by the user.

g/T

G/T = (Receiver Gain)/(System Temperature at the Receiver). The ratio of the receive antenna gain G to the total system temperature T is the "figure of merit" for the receiver (in dB/K). The figure of merit is independent of the point where it is calculated. However, the gain and system temperature must be specified at the same point.

C/No

The carrier to noise density ratio (C/No) where C is the carrier power and No = kT (Boltzmann's constant x system temperature) is the noise density. It is equivalent to C/N with a normalized Bandwidth (B=1).

C/(No+Io)

The carrier to (noise + interference) ratio (C/(No+Io)) where C is the carrier power, No = kT (Boltzmann's constant * system temperature) and Io = interference power spectral density.

C/N

The carrier to noise ratio (C/N) where C is the carrier power and N = kTB (Boltzmann's constant x system temperature x bandwidth) is the noise power.

C/(N+I)

The carrier to (noise + interference) ratio (C/(N+I)) where C is the carrier power, N = kTB (Boltzmann's constant * system temperature * bandwidth) and I = interference power.

Eb/No

The energy per bit to noise ratio (Eb/No) where Eb is the energy per bit and No = kT (Boltzmann's constant * system temperature).

Eb/(No+Io)

The energy per bit to (noise + interference) ratio (Eb/(No+Io)) where Eb is the energy per bit, No = kT (Boltzmann's constant * system temperature) and Io = interference power spectral density.

C/I

C/I is the carrier power from the desired signal over the sum of all interferer powers.

Delta T/T

The ratio of interference power spectral density Io and receiver noise spectral density No.

Pwr Flux Density

The power crossing a unit area normal to the direction of wave propagation in watts per square meter (W/m^2).