NS-3
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#include <half-duplex-ideal-phy.h>
This PHY layer implementation realizes an ideal OFDM PHY which transmits half-duplex (i.e., it can either receive or transmit at a given time). The device is ideal in the sense that: 1) it uses an error model based on the Shannon capacity, which assumes ideal channel coding; 2) it uses ideal signal acquisition, i.e., preamble detection and synchronization are always successful 3) it has no PHY layer overhead
Being half duplex, if a RX is ongoing but a TX is requested, the RX is aborted and the TX is started. Of course, no RX can be performed while there is an ongoing TX.
The use of OFDM is modeled by means of the Spectrum framework. By calling the method SetTxPowerSpectralDensity(), the user can specify how much of the spectrum is used, how many subcarriers are used, and what power is allocated to each subcarrier.
The user can also specify the PHY rate at which communications take place by using SetRate(). This is equivalent to choosing a particular modulation and coding scheme.
The use of the ShannonSpectrumErrorModel allows us to account for the following aspects in determining whether a transmission is successful or not:
PHY states
get the associated NetDevice instance
Implements ns3::SpectrumPhy.
get the associated MobilityModel instance
Implements ns3::SpectrumPhy.
DataRate ns3::HalfDuplexIdealPhy::GetRate | ( | ) | const |
Ptr<const SpectrumModel> ns3::HalfDuplexIdealPhy::GetRxSpectrumModel | ( | ) | const [virtual] |
Implements ns3::SpectrumPhy.
SpectrumType ns3::HalfDuplexIdealPhy::GetSpectrumType | ( | ) |
Get the SpectrumType used by this PHY
static TypeId ns3::HalfDuplexIdealPhy::GetTypeId | ( | void | ) | [static] |
This method returns the TypeId associated to ns3::HalfDuplexIdealPhy.
This object is accessible through the following paths with Config::Set and Config::Connect:
Attributes defined for this type:
TraceSources defined for this type:
Reimplemented from ns3::SpectrumPhy.
void ns3::HalfDuplexIdealPhy::SetChannel | ( | Ptr< SpectrumChannel > | c | ) | [virtual] |
set the associated NetDevice instance
d | the NetDevice instance |
Implements ns3::SpectrumPhy.
void ns3::HalfDuplexIdealPhy::SetGenericPhyRxEndErrorCallback | ( | GenericPhyRxEndErrorCallback | c | ) |
set the callback for the end of a RX in error, as part of the interconnections betweenthe PHY and the MAC
c | the callback |
void ns3::HalfDuplexIdealPhy::SetGenericPhyRxEndOkCallback | ( | GenericPhyRxEndOkCallback | c | ) |
set the callback for the successful end of a RX, as part of the interconnections betweenthe PHY and the MAC
c | the callback |
void ns3::HalfDuplexIdealPhy::SetGenericPhyRxStartCallback | ( | GenericPhyRxStartCallback | c | ) |
set the callback for the start of RX, as part of the interconnections betweenthe PHY and the MAC
c | the callback |
void ns3::HalfDuplexIdealPhy::SetGenericPhyTxEndCallback | ( | GenericPhyTxEndCallback | c | ) |
set the callback for the end of a TX, as part of the interconnections betweenthe PHY and the MAC
c | the callback |
Set the mobility model associated with this device.
m | the mobility model |
Implements ns3::SpectrumPhy.
void ns3::HalfDuplexIdealPhy::SetNoisePowerSpectralDensity | ( | Ptr< const SpectrumValue > | noisePsd | ) |
noisePsd | the Noise Power Spectral Density in power units (Watt, Pascal...) per Hz. |
void ns3::HalfDuplexIdealPhy::SetRate | ( | DataRate | rate | ) |
set the PHY rate to be used by this PHY.
rate |
void ns3::HalfDuplexIdealPhy::SetTxPowerSpectralDensity | ( | Ptr< SpectrumValue > | txPsd | ) |
set the Power Spectral Density of outgoing signals in power units (Watt, Pascal...) per Hz.
txPsd |
void ns3::HalfDuplexIdealPhy::StartRx | ( | Ptr< PacketBurst > | p, |
Ptr< const SpectrumValue > | rxPsd, | ||
SpectrumType | st, | ||
Time | duration | ||
) | [virtual] |
Notify the SpectrumPhy instance of an incoming waveform
p | the PacketBurst associated with the incoming waveform |
rxPsd | the Power Spectral Density of the incoming waveform. The units of the PSD are the same specified for SpectrumChannel::StartTx(). |
st | spectrum type |
duration | the duration of the incoming waveform |
Implements ns3::SpectrumPhy.
Start a transmission
p | the packet to be transmitted |