15#include "ns3/uinteger.h"
16#include <ns3/double.h>
18#include <ns3/mobility-model.h>
19#include <ns3/simulator.h>
20#include <ns3/string.h>
32 : m_streamsAssigned(false)
49 TypeId(
"ns3::TraceFadingLossModel")
51 .SetGroupName(
"Spectrum")
53 .AddAttribute(
"TraceFilename",
54 "Name of file to load a trace from.",
58 .AddAttribute(
"TraceLength",
59 "The total length of the fading trace (default value 10 s.)",
63 .AddAttribute(
"SamplesNum",
64 "The number of samples the trace is made of (default 10000)",
68 .AddAttribute(
"WindowSize",
69 "The size of the window for the fading trace (default value 0.5 s.)",
73 .AddAttribute(
"RbNum",
74 "The number of RB the trace is made of (default 100)",
80 "The number of RNG streams reserved for the fading model. The maximum number of "
81 "streams that are needed for an LTE FDD scenario is 2 * numUEs * numeNBs.",
112 std::ifstream ifTraceFile;
115 if (!ifTraceFile.good())
118 NS_ASSERT_MSG(ifTraceFile.good(),
" Fading trace file not found");
129 ifTraceFile >> sample;
130 rbTimeFadingTrace.push_back(sample);
158 (*itOff2).second = (*itVar).second->GetValue();
165 NS_LOG_LOGIC(
this <<
"insert new channel realization, m_windowOffsetMap.size () = "
169 startV->SetAttribute(
175 "not enough streams, consider increasing the StreamSetSize attribute");
184 .insert(std::pair<ChannelRealizationId_t, int>(mobilityPair, startV->GetValue()))
189 auto vit = rxPsd->ValuesBegin();
201 int index = ((*itOff).second + now_ms - lastUpdate_ms) %
m_samplesNum;
203 while (vit != rxPsd->ValuesEnd())
209 NS_LOG_INFO(
this <<
" FADING now " << now_ms <<
" offset " << (*itOff).second <<
" id "
210 << index <<
" fading " << fading);
212 power = 10 * std::log10(180000 * power);
214 NS_LOG_LOGIC(
this << subChannel << *vit << power << fading);
216 *vit = std::pow(10., ((power + fading) / 10)) / 180000;
243 "not enough streams, consider increasing the StreamSetSize attribute");
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Smart pointer class similar to boost::intrusive_ptr.
static Time Now()
Return the current simulation virtual time.
spectrum-aware propagation loss model
void SetNext(Ptr< SpectrumPropagationLossModel > next)
Used to chain various instances of SpectrumPropagationLossModel.
Hold variables of type string.
Simulation virtual time values and global simulation resolution.
int64_t GetMilliSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
double GetSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
fading loss model based on precalculated fading traces
uint32_t m_rbNum
RB number.
uint64_t m_streamSetSize
stream set size
Ptr< SpectrumValue > DoCalcRxPowerSpectralDensity(Ptr< const SpectrumSignalParameters > params, Ptr< const MobilityModel > a, Ptr< const MobilityModel > b) const override
Time m_traceLength
the trace time
std::string m_traceFile
the trace file name
Time m_lastWindowUpdate
time of last window update
void SetTraceLength(Time t)
Set the trace time.
uint32_t m_samplesNum
number of samples
std::pair< Ptr< const MobilityModel >, Ptr< const MobilityModel > > ChannelRealizationId_t
The couple of mobility node that form a fading channel realization.
~TraceFadingLossModel() override
int64_t DoAssignStreams(int64_t stream) override
Assign a fixed random variable stream number to the random variables used by this model.
std::vector< double > FadingTraceSample
Vector with fading samples in time domain (for a fixed RB)
uint32_t m_timeGranularity
time granularity
void SetTraceFileName(std::string fileName)
Set the trace file name.
bool m_streamsAssigned
is streams assigned?
static TypeId GetTypeId()
Get the type ID.
std::map< ChannelRealizationId_t, int > m_windowOffsetsMap
windows offsets map
std::map< ChannelRealizationId_t, Ptr< UniformRandomVariable > > m_startVariableMap
start variable map
uint64_t m_currentStream
the current stream
void LoadTrace()
Load trace function.
FadingTrace m_fadingTrace
fading trace
Time m_windowSize
window size
uint64_t m_lastStream
the last stream
void DoInitialize() override
Initialize() implementation.
a unique identifier for an interface.
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Hold an unsigned integer type.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
#define NS_ASSERT_MSG(condition, message)
At runtime, in debugging builds, if this condition is not true, the program prints the message to out...
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_LOG_LOGIC(msg)
Use NS_LOG to output a message of level LOG_LOGIC.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Ptr< T > CreateObject(Args &&... args)
Create an object by type, with varying number of constructor parameters.
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Time Seconds(double value)
Construct a Time in the indicated unit.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Ptr< const AttributeChecker > MakeUintegerChecker()
Ptr< const AttributeAccessor > MakeTimeAccessor(T1 a1)
Ptr< const AttributeAccessor > MakeUintegerAccessor(T1 a1)
Ptr< T > Copy(Ptr< T > object)
Return a deep copy of a Ptr.
Ptr< const AttributeChecker > MakeStringChecker()
Ptr< const AttributeAccessor > MakeStringAccessor(T1 a1)
Ptr< const AttributeChecker > MakeTimeChecker()
Helper to make an unbounded Time checker.