Noise Level¶

class NoiseLevel[source]¶

Bases: ScalarDimension, Serializable

Base class for all noise level configuration classes.

abstract get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

abstract property level: float[source]¶

Scalar level of the represented noise.

Raises:: ValueError – If the noise level is negative.

General Noise Level¶

class ThermalNoise(temparature)[source]¶

Bases: NoiseLevel

Thermal noise configuration.

Parameters:: temparature (float) – Absolute temparature in Kelvin.

classmethod Deserialize(process)[source]¶

Deserialize an object’s state.

Objects cannot be deserialized directly, instead a Factory must be instructed to carry out the deserialization process.

Parameters:: process (DeserializationProcess) – The current stage of the deserialization process. This object is generated by the Factory and provides an interface to deserialization methods supporting multiple backends.
Return type:: ThermalNoise
Returns:: The deserialized object.

get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

serialize(process)[source]¶

Serialize this object’s state.

Objects cannot be serialized directly, instead a Factory must be instructed to carry out the serialization process.

Parameters:: process (SerializationProcess) – The current stage of the serialization process. This object is generated by the Factory and provides an interface to serialization methods supporting multiple backends.
Return type:: None

property level: float[source]¶

Absolute temparature in Kelvin.

Raises:: ValueError – If the temparature is negative.

property title: str[source]¶

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.

class N0(power)[source]¶

Bases: NoiseLevel

Fixed noise power configuration.

Parameters:: power (float) – Noise power in Watt.

classmethod Deserialize(process)[source]¶

Deserialize an object’s state.

Objects cannot be deserialized directly, instead a Factory must be instructed to carry out the deserialization process.

Parameters:: process (DeserializationProcess) – The current stage of the deserialization process. This object is generated by the Factory and provides an interface to deserialization methods supporting multiple backends.
Return type:: N0
Returns:: The deserialized object.

get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

serialize(process)[source]¶

Serialize this object’s state.

Objects cannot be serialized directly, instead a Factory must be instructed to carry out the serialization process.

Parameters:: process (SerializationProcess) – The current stage of the serialization process. This object is generated by the Factory and provides an interface to serialization methods supporting multiple backends.
Return type:: None

property level: float[source]¶

Power of the noise in Watt.

Raises:: ValueError – If the noise power is negative.

property power: float[source]¶

Power of the noise level in Watt.

Raises:: ValueError – If the noise power is negative.

property title: str[source]¶

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.

class SNR(snr, reference, channel=None)[source]¶

Bases: NoiseLevel

Signal-to-noise ratio configuration.

Parameters:

snr (float) – Expected signal-to-noise ratio.
reference (Device | Transmitter | Receiver) – Reference of the noise level, i.e. with which power or energy was the signal generated.
channel (Channel | None) – Channel instance over which the signal was propagated. For channel models that consider propagation losses the noise power is scaled accordingly.

classmethod Deserialize(process)[source]¶

Deserialize an object’s state.

Objects cannot be deserialized directly, instead a Factory must be instructed to carry out the deserialization process.

Parameters:: process (DeserializationProcess) – The current stage of the deserialization process. This object is generated by the Factory and provides an interface to deserialization methods supporting multiple backends.
Return type:: SNR
Returns:: The deserialized object.

get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

serialize(process)[source]¶

Serialize this object’s state.

Objects cannot be serialized directly, instead a Factory must be instructed to carry out the serialization process.

Parameters:: process (SerializationProcess) – The current stage of the serialization process. This object is generated by the Factory and provides an interface to serialization methods supporting multiple backends.
Return type:: None

property level: float[source]¶

Linear signal power to noise power ratio.

Raises:: ValueError – If the ratio negative.

property reference: Device | Transmitter | Receiver[source]¶

Reference to which the noise level is scaled.

Can be either a device, transmitter or receiver. If assigned to a device,

property snr: float[source]¶

Linear signal power to noise power ratio.

Raises:: ValueError – If the ratio negative.

property title: str[source]¶

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.

Communication Noise Level¶

class CommunicationNoiseLevel(reference, level=inf)[source]¶

Bases: NoiseLevel

Base class for all communication noise level configuration classes.

Parameters:

reference (BaseModem | CommunicationWaveform) – Reference with respect to which the noise level is defined.
level (float) – Noise level relative to the reference’

property level: float[source]¶

Communication relative noise level.

Raises:: ValueError – For non-positive noise levels.

property reference: BaseModem | CommunicationWaveform[source]¶

Reference of the noise level.

Returns: Reference of the noise level.

Eb/N0¶

The bit energy to noise power spectral density ratio (Eb/N0) is a fundamental parameter in digital communication systems. It is defined as the ratio of the energy per bit to the noise power spectral density. The Eb/N0 is a key parameter in the design of digital communication systems, and is used to determine the minimum signal-to-noise ratio required to achieve a certain bit error rate.

class EBN0(reference, level=inf)[source]¶

Bases: CommunicationNoiseLevel

Fixed noise power configuration.

Parameters:

reference (BaseModem | CommunicationWaveform) – Reference with respect to which the noise level is defined.
level (float) – Noise level relative to the reference’

get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

property title: str[source]¶

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.

Es/N0¶

The symbol energy to noise power spectral density ratio (ES/N0) is a measure of the signal-to-noise ratio (SNR) in a communication system. It is defined as the ratio of the energy per symbol to the noise power spectral density. The ES/N0 is a key parameter in the design of digital communication systems, and is used to determine the required signal-to-noise ratio for a given bit error rate.

class ESN0(reference, level=inf)[source]¶

Bases: CommunicationNoiseLevel

Fixed noise power configuration.

Parameters:

reference (BaseModem | CommunicationWaveform) – Reference with respect to which the noise level is defined.
level (float) – Noise level relative to the reference’

get_power(bandwidth)[source]¶

Power of the noise level.

Parameters:: bandwidth (float) – Bandwidth of the assumed band in Hz.
Return type:: float
Returns:: Mean square voltage of the noise level.

property title: str[source]¶

Title of the scalar dimension.

Displayed in plots and tables during simulation runtime.