author | Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
Wed, 02 Jan 2008 09:09:24 +0100 | |
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child 2336 | 28ce210b91bb |
permissions | -rw-r--r-- |
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/* -*- 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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*/ |
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#include "propagation-delay-model.h" |
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#include "ns3/random-variable.h" |
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#include "ns3/default-value.h" |
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#include "ns3/random-variable-default-value.h" |
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#include "ns3/mobility-model.h" |
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namespace ns3 { |
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enum ModelType |
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{ |
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RANDOM, |
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CONSTANT_SPEED |
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}; |
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static EnumDefaultValue<enum ModelType> g_modelType |
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("PropagationDelayModelType", |
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"The type of propagation delay model to use.", |
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CONSTANT_SPEED, "ConstantSpeed", |
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RANDOM, "Random", |
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0, (void*)0); |
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static NumericDefaultValue<double> g_speed |
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("PropagationDelayConstantSpeed", |
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"The speed (m/s) of propagation if a ConstantSpeed propagation delay model is used.", |
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300000000.0); |
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|
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static RandomVariableDefaultValue g_random |
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("PropagationDelayRandomDistribution", |
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"The delay distribution to use if a Random propagation delay model is used.", |
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"Uniform:0:1.0"); |
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|
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PropagationDelayModel::~PropagationDelayModel () |
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{} |
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Ptr<PropagationDelayModel> |
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PropagationDelayModel::CreateDefault (void) |
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{ |
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switch (g_modelType.GetValue ()) { |
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case CONSTANT_SPEED: |
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return CreateObject<ConstantSpeedPropagationDelayModel> (g_speed.GetValue ()); |
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break; |
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case RANDOM: |
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return CreateObject<RandomPropagationDelayModel> (); |
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break; |
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default: |
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NS_ASSERT (false); |
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return 0; |
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break; |
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} |
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} |
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RandomPropagationDelayModel::RandomPropagationDelayModel () |
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: m_variable (g_random.GetCopy ()) |
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{} |
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RandomPropagationDelayModel::RandomPropagationDelayModel (const RandomVariable &variable) |
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: m_variable (variable.Copy ()) |
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{} |
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RandomPropagationDelayModel::~RandomPropagationDelayModel () |
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{ |
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delete m_variable; |
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} |
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RandomPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const |
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{ |
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return Seconds (m_variable->GetValue ()); |
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} |
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ConstantSpeedPropagationDelayModel::ConstantSpeedPropagationDelayModel (double speed) |
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: m_speed (speed) |
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{} |
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ConstantSpeedPropagationDelayModel::GetDelay (Ptr<MobilityModel> a, Ptr<MobilityModel> b) const |
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{ |
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double distance = a->GetDistanceFrom (b); |
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double seconds = distance / m_speed; |
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return Seconds (seconds); |
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} |
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void |
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ConstantSpeedPropagationDelayModel::SetSpeed (double speed) |
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{ |
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m_speed = speed; |
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} |
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double |
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ConstantSpeedPropagationDelayModel::GetSpeed (void) const |
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{ |
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return m_speed; |
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} |
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} // namespace ns3 |