inet::physicallayer::LayeredErrorModelBase Class Reference

#include <LayeredErrorModelBase.h>

Inheritance diagram for inet::physicallayer::LayeredErrorModelBase:

Protected Member Functions
virtual const IReceptionPacketModel *	computePacketModel (const LayeredTransmission *transmission, double packetErrorRate) const
virtual const IReceptionBitModel *	computeBitModel (const LayeredTransmission *transmission, double bitErrorRate) const
virtual const IReceptionSymbolModel *	computeSymbolModel (const LayeredTransmission *transmission, double symbolErrorRate) const

Additional Inherited Members
Public Types inherited from inet::IPrintableObject
enum	PrintLevel {   PRINT_LEVEL_TRACE, PRINT_LEVEL_DEBUG, PRINT_LEVEL_DETAIL, PRINT_LEVEL_INFO,   PRINT_LEVEL_COMPLETE = INT_MIN }
enum	PrintFlag { PRINT_FLAG_FORMATTED = (1 << 0), PRINT_FLAG_MULTILINE = (1 << 1) }
Public Member Functions inherited from inet::physicallayer::ILayeredErrorModel
virtual const IReceptionPacketModel *	computePacketModel (const LayeredTransmission *transmission, const ISnir *snir) const =0
	Computes the packet domain representation at the receiver using a simplified model for the underlying domains. More...
virtual const IReceptionBitModel *	computeBitModel (const LayeredTransmission *transmission, const ISnir *snir) const =0
	Computes the bit domain representation at the receiver using a simplified model for the underlying domains. More...
virtual const IReceptionSymbolModel *	computeSymbolModel (const LayeredTransmission *transmission, const ISnir *snir) const =0
	Computes the symbol domain representation at the receiver using a simplified model for the underlying domains. More...
virtual const IReceptionSampleModel *	computeSampleModel (const LayeredTransmission *transmission, const ISnir *snir) const =0
	Computes the sample domain representation at the receiver using a simplified model for the underlying domains. More...
Public Member Functions inherited from inet::IPrintableObject
virtual	~IPrintableObject ()
virtual std::ostream &	printToStream (std::ostream &stream, int level, int evFlags=0) const
	Prints this object to the provided output stream. More...
virtual std::string	printToString () const
virtual std::string	printToString (int level, int evFlags=0) const
virtual std::string	getInfoStringRepresentation (int evFlags=0) const
virtual std::string	getDetailStringRepresentation (int evFlags=0) const
virtual std::string	getDebugStringRepresentation (int evFlags=0) const
virtual std::string	getTraceStringRepresentation (int evFlags=0) const
virtual std::string	getCompleteStringRepresentation (int evFlags=0) const

Member Function Documentation

computeBitModel()

const IReceptionBitModel * inet::physicallayer::LayeredErrorModelBase::computeBitModel ( const LayeredTransmission *  transmission, double  bitErrorRate  ) const

protectedvirtual

{
    const TransmissionBitModel *transmissionBitModel = check_and_cast<const TransmissionBitModel *>(transmission->getBitModel());
    if (bitErrorRate == 0)
        return new ReceptionBitModel(transmissionBitModel->getHeaderLength(), transmissionBitModel->getHeaderBitRate(), transmissionBitModel->getDataLength(), transmissionBitModel->getDataBitRate(), new BitVector(*transmissionBitModel->getBits()), bitErrorRate);
    else {
        BitVector *receivedBits = new BitVector(*transmissionBitModel->getBits());
        for (unsigned int i = 0; i < receivedBits->getSize(); i++) {
            if (uniform(0, 1) < bitErrorRate)
                receivedBits->toggleBit(i);
        }
        return new ReceptionBitModel(transmissionBitModel->getHeaderLength(), transmissionBitModel->getHeaderBitRate(), transmissionBitModel->getDataLength(), transmissionBitModel->getDataBitRate(), receivedBits, bitErrorRate);
    }
}

Referenced by inet::physicallayer::ApskLayeredErrorModel::computeBitModel(), and inet::physicallayer::StochasticLayeredErrorModel::computeBitModel().

computePacketModel()

const IReceptionPacketModel * inet::physicallayer::LayeredErrorModelBase::computePacketModel ( const LayeredTransmission *  transmission, double  packetErrorRate  ) const

protectedvirtual

{
    auto transmissionPacketModel = check_and_cast<const TransmissionPacketModel *>(transmission->getPacketModel());
    auto transmittedPacket = transmissionPacketModel->getPacket();
    auto receivedPacket = transmittedPacket->dup();
    if (packetErrorRate != 0 && uniform(0, 1) < packetErrorRate)
        receivedPacket->setBitError(true);
    receivedPacket->addTagIfAbsent<ErrorRateInd>()->setPacketErrorRate(packetErrorRate);
    return new ReceptionPacketModel(receivedPacket, transmissionPacketModel->getBitrate(), packetErrorRate);
}

Referenced by inet::physicallayer::ApskLayeredErrorModel::computePacketModel().

computeSymbolModel()

const IReceptionSymbolModel * inet::physicallayer::LayeredErrorModelBase::computeSymbolModel ( const LayeredTransmission *  transmission, double  symbolErrorRate  ) const

protectedvirtual

{
    if (symbolErrorRate == 0) {
        const TransmissionSymbolModel *transmissionSymbolModel = check_and_cast<const TransmissionSymbolModel *>(transmission->getSymbolModel());
        return new ReceptionSymbolModel(transmissionSymbolModel->getHeaderSymbolLength(), transmissionSymbolModel->getHeaderSymbolRate(), transmissionSymbolModel->getPayloadSymbolLength(), transmissionSymbolModel->getPayloadSymbolRate(), new std::vector<const ISymbol *>(*transmissionSymbolModel->getSymbols()), symbolErrorRate);
    }
    else {
        const TransmissionSymbolModel *transmissionSymbolModel = check_and_cast<const TransmissionSymbolModel *>(transmission->getSymbolModel());
        const ApskModulationBase *modulation = check_and_cast<const ApskModulationBase *>(transmissionSymbolModel->getPayloadModulation());
        const std::vector<const ISymbol *> *transmittedSymbols = transmissionSymbolModel->getSymbols();
        std::vector<const ISymbol *> *receivedSymbols = new std::vector<const ISymbol *>();
        for (auto& transmittedSymbols_i : *transmittedSymbols) {
            if (uniform(0, 1) < symbolErrorRate) {
                const ApskSymbol *transmittedSymbol = check_and_cast<const ApskSymbol *>(transmittedSymbols_i);
                ShortBitVector bits = modulation->demapToBitRepresentation(transmittedSymbol);
                int errorIndex = intuniform(0, bits.getSize() - 1);
                bits.setBit(errorIndex, !bits.getBit(errorIndex));
                const ApskSymbol *receivedSymbol = modulation->mapToConstellationDiagram(bits);
                receivedSymbols->push_back(receivedSymbol);
            }
            else
                receivedSymbols->push_back(transmittedSymbols_i);
        }
        return new ReceptionSymbolModel(transmissionSymbolModel->getHeaderSymbolLength(), transmissionSymbolModel->getHeaderSymbolRate(), transmissionSymbolModel->getPayloadSymbolLength(), transmissionSymbolModel->getPayloadSymbolRate(), receivedSymbols, symbolErrorRate);
    }
}

Referenced by inet::physicallayer::ApskLayeredErrorModel::computeSymbolModel(), and inet::physicallayer::StochasticLayeredErrorModel::computeSymbolModel().

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The documentation for this class was generated from the following files:

• LayeredErrorModelBase.h
• LayeredErrorModelBase.cc