/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ /* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation; * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Author: Tim Schubert */ #ifndef ISL_PROPAGATION_LOSS_MODEL_H #define ISL_PROPAGATION_LOSS_MODEL_H #include #include /** * \file * \ingroup leo * * Declaration of IslPropagationLossModel */ #define LEO_EARTH_RAD 6.371009e6 namespace ns3 { /** * \ingroup leo * \brief An approximate model for the propagation loss between any two low * earth orbit satellites using the line-of-sight * */ class IslPropagationLossModel : public PropagationLossModel { public: /** * \brief Get the type ID. * \return the object TypeId */ static TypeId GetTypeId (void); /// constructor IslPropagationLossModel (); /// destructor virtual ~IslPropagationLossModel (); /** * \brief Check if there is a direc line-of-sight between the two points * * Assumes earth is spherical. * * \param a first point * \param b second point * \return true iff there is a line-of-sight between the points */ static bool GetLos (Ptr a, Ptr b); private: /** * Returns the Rx Power taking into account only the particular * PropagationLossModel. * * \param txPowerDbm current transmission power (in dBm) * \param a the mobility model of the source * \param b the mobility model of the destination * \returns the reception power after adding/multiplying propagation loss (in dBm) */ virtual double DoCalcRxPower (double txPowerDbm, Ptr a, Ptr b) const; virtual int64_t DoAssignStreams (int64_t stream); }; } #endif /* SATELLITE_ISL_PROPAGATION_LOSS_MODEL_H */