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103 lines
2.7 KiB
C++
103 lines
2.7 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005,2006,2007 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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* Contributions: Timo Bingmann <timo.bingmann@student.kit.edu>
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* Contributions: Gary Pei <guangyu.pei@boeing.com> for fixed RSS
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* Contributions: Tom Hewer <tomhewer@mac.com> for two ray ground model
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* Pavel Boyko <boyko@iitp.ru> for matrix
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*/
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#include "ns3/log.h"
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#include "ns3/mobility-model.h"
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#include "math.h"
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#include "isl-propagation-loss-model.h"
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namespace ns3 {
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NS_LOG_COMPONENT_DEFINE ("IslPropagationLossModel");
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NS_OBJECT_ENSURE_REGISTERED (IslPropagationLossModel);
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TypeId
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IslPropagationLossModel::GetTypeId (void)
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{
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static TypeId tid = TypeId ("ns3::IslPropagationLossModel")
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.SetParent<PropagationLossModel> ()
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.SetGroupName ("Leo")
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.AddConstructor<IslPropagationLossModel> ()
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;
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return tid;
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}
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IslPropagationLossModel::IslPropagationLossModel ()
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{
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}
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IslPropagationLossModel::~IslPropagationLossModel ()
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{
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}
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const double
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IslPropagationLossModel::EARTH_RAD = 6.3781E6;
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bool
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IslPropagationLossModel::GetLos (Ptr<MobilityModel> a, Ptr<MobilityModel> b)
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{
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// origin of LOS
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Vector3D o = a->GetPosition ();
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double ol = o.GetLength ();
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// second point of LOS
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Vector3D bp = b->GetPosition ();
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double bl = bp.GetLength ();
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// unit vector
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Vector3D u = Vector3D ((o.x-bp.x)/bl, (o.y-bp.y)/bl, (o.z-bp.z)/bl);
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// center point of sphere is 0
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double uo = (u.x*o.x) + (u.y*o.y) + (u.z*o.z);
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double delta = (uo*uo) - (ol*ol - (EARTH_RAD*EARTH_RAD));
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return delta < 0;
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}
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double
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IslPropagationLossModel::DoCalcRxPower (double txPowerDbm,
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Ptr<MobilityModel> a,
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Ptr<MobilityModel> b) const
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{
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// primitivec cut-of at 1000 km
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if (!GetLos (a, b))
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{
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return 0.0;
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}
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double rxc = 0.0;//-m_variable->GetValue ();
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NS_LOG_DEBUG ("attenuation coefficient="<<rxc<<"Db");
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return txPowerDbm + rxc;
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}
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int64_t
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IslPropagationLossModel::DoAssignStreams (int64_t stream)
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{
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return 0;
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}
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};
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