38 .SetGroupName (
"Wifi")
52 double EbNo = snr * signalSpread / phyRate;
53 double z = std::sqrt (EbNo);
54 double ber = 0.5 * erfc (z);
63 double EbNo = snr * signalSpread / phyRate;
64 double z = std::sqrt ((1.5 *
Log2 (m) * EbNo) / (m - 1.0));
65 double z1 = ((1.0 - 1.0 / std::sqrt (m)) * erfc (z));
66 double z2 = 1 - std::pow ((1 - z1), 2);
67 double ber = z2 /
Log2 (m);
68 NS_LOG_INFO (
"Qam m=" << m <<
" rate=" << phyRate <<
" snr=" << snr <<
" ber=" << ber);
87 double retval =
Factorial (n) / (
Factorial (k) *
Factorial (n - k)) * std::pow (p, static_cast<double> (k)) * std::pow (1 - p, static_cast<double> (n - k));
95 unsigned int dstart = (d + 1) / 2;
96 unsigned int dend = d;
99 for (
unsigned int i = dstart; i < dend; i++)
110 unsigned int dstart = d / 2 + 1;
111 unsigned int dend = d;
114 for (
unsigned int i = dstart; i < dend; i++)
118 pd += 0.5 *
Binomial (d / 2, ber, d);
141 uint32_t signalSpread, uint64_t phyRate,
142 uint32_t dFree, uint32_t adFree)
const
144 NS_LOG_FUNCTION (
this << snr << nbits << signalSpread << phyRate << dFree << adFree);
145 double ber =
GetBpskBer (snr, signalSpread, phyRate);
151 double pmu = adFree * pd;
153 double pms = std::pow (1 - pmu, nbits);
159 uint32_t signalSpread,
161 uint32_t m, uint32_t dFree,
162 uint32_t adFree, uint32_t adFreePlusOne)
const
164 NS_LOG_FUNCTION (
this << snr << nbits << signalSpread << phyRate << m << dFree << adFree << adFreePlusOne);
165 double ber =
GetQamBer (snr, m, signalSpread, phyRate);
172 double pmu = adFree * pd;
175 pmu += adFreePlusOne * pd;
177 double pms = std::pow (1 - pmu, nbits);
367 NS_ASSERT (
"undefined DSSS/HR-DSSS datarate");
static TypeId GetTypeId(void)
Get the type ID.
double CalculatePdEven(double ber, unsigned int d) const
double CalculatePd(double ber, unsigned int d) const
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by "...
This class mimics the TXVECTOR which is to be passed to the PHY in order to define the parameters whi...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file...
double CalculatePdOdd(double ber, unsigned int d) const
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
double GetFecBpskBer(double snr, uint64_t nbits, uint32_t signalSpread, uint64_t phyRate, uint32_t dFree, uint32_t adFree) const
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
static double GetDsssDbpskSuccessRate(double sinr, uint64_t nbits)
Return the chunk success rate of the differential BPSK.
the interface for Wifi's error models
uint8_t GetChannelWidth(void) const
uint16_t GetConstellationSize(void) const
Model the error rate for different modulations.
uint64_t GetDataRate(uint8_t channelWidth, uint16_t guardInterval, uint8_t nss) const
double GetBpskBer(double snr, uint32_t signalSpread, uint64_t phyRate) const
Return BER of BPSK with the given parameters.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
virtual double GetChunkSuccessRate(WifiMode mode, WifiTxVector txVector, double snr, uint64_t nbits) const
A pure virtual method that must be implemented in the subclass.
static double GetDsssDqpskCck5_5SuccessRate(double sinr, uint64_t nbits)
Return the chunk success rate of the differential encoded QPSK for 5.5Mbps data rate.
uint32_t Factorial(uint32_t k) const
Return k!
uint64_t GetPhyRate(uint8_t channelWidth, uint16_t guardInterval, uint8_t nss) const
double Binomial(uint32_t k, double p, uint32_t n) const
Return Binomial distribution for a given k, p, and n.
double GetFecQamBer(double snr, uint64_t nbits, uint32_t signalSpread, uint64_t phyRate, uint32_t m, uint32_t dfree, uint32_t adFree, uint32_t adFreePlusOne) const
WifiModulationClass GetModulationClass() const
static double GetDsssDqpskSuccessRate(double sinr, uint64_t nbits)
Return the chunk success rate of the differential encoded QPSK.
WifiMode GetMode(void) const
SpectrumValue Log2(const SpectrumValue &arg)
double GetQamBer(double snr, unsigned int m, uint32_t signalSpread, uint64_t phyRate) const
Return BER of QAM-m with the given parameters.
a unique identifier for an interface.
WifiCodeRate GetCodeRate(void) const
TypeId SetParent(TypeId tid)
Set the parent TypeId.
static double GetDsssDqpskCck11SuccessRate(double sinr, uint64_t nbits)
Return the chunk success rate of the differential encoded QPSK for 11Mbps data rate.