#ifndef WIRELESS_CHANNEL_H #define WIRELESS_CHANNEL_H #include <boost/shared_ptr.hpp> #include "channel.hpp" class PathLoss; typedef boost::shared_ptr<PathLoss> PathLossPtr; class Fading; typedef boost::shared_ptr<Fading> FadingPtr; class WirelessCommSignal; typedef boost::shared_ptr<WirelessCommSignal> WirelessCommSignalPtr; class WirelessChannel : public Channel { public:    typedef boost::shared_ptr<WirelessChannel> WirelessChannelPtr;    static inline WirelessChannelPtr create(PathLossPtr pathLossModel);    static inline WirelessChannelPtr create(PathLossPtr pathLossModel,       FadingPtr fadingModel);    virtual double getRecvdStrength(const WirelessCommSignal& signal,       const PhysicalLayer& receiver) const;    virtual bool signalHasError(double signalSinr,       const WirelessCommSignal& signal) const; protected:    WirelessChannel(PathLossPtr pathLossModel);    WirelessChannel(PathLossPtr pathLossModel, FadingPtr fadingModel); private:    static const bool m_DEBUG_SIGNAL_STRENGTH = false;    PathLossPtr m_pathLossModel;    FadingPtr m_fadingModel; }; typedef boost::shared_ptr<WirelessChannel> WirelessChannelPtr; // Inline Functions inline WirelessChannelPtr WirelessChannel::create(    PathLossPtr pathLossModel) {    WirelessChannelPtr p(new WirelessChannel(pathLossModel));    return p; } inline WirelessChannelPtr WirelessChannel::create(    PathLossPtr pathLossModel, FadingPtr fadingModel) {    WirelessChannelPtr p(new WirelessChannel(pathLossModel, fadingModel));    return p; } // Overloaded Operators #endif // WIRELESS_CHANNEL_H