--- a/src/lte/model/jakes-fading-loss-model.cc Fri May 11 14:02:54 2012 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,330 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2010 TELEMATICS LAB, DEE - Politecnico di Bari
- *
- * 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: Giuseppe Piro <g.piro@poliba.it>
- */
-
-#include <cmath>
-#include <ns3/log.h>
-#include "jakes-fading-loss-model.h"
-#include <ns3/simulator.h>
-#include <stdint.h>
-#include "stdlib.h"
-#include "lte-phy.h"
-#include <ns3/mobility-model.h>
-
-#include "JakesTraces/multipath_v0_M6.h"
-#include "JakesTraces/multipath_v0_M8.h"
-#include "JakesTraces/multipath_v0_M10.h"
-#include "JakesTraces/multipath_v0_M12.h"
-
-#include "JakesTraces/multipath_v3_M6.h"
-#include "JakesTraces/multipath_v3_M8.h"
-#include "JakesTraces/multipath_v3_M10.h"
-#include "JakesTraces/multipath_v3_M12.h"
-
-#include "JakesTraces/multipath_v30_M6.h"
-#include "JakesTraces/multipath_v30_M8.h"
-#include "JakesTraces/multipath_v30_M10.h"
-#include "JakesTraces/multipath_v30_M12.h"
-
-#include "JakesTraces/multipath_v120_M6.h"
-#include "JakesTraces/multipath_v120_M8.h"
-#include "JakesTraces/multipath_v120_M10.h"
-#include "JakesTraces/multipath_v120_M12.h"
-
-
-NS_LOG_COMPONENT_DEFINE ("JakesFadingLossModel");
-
-namespace ns3 {
-
-
-NS_OBJECT_ENSURE_REGISTERED (JakesFadingLossModel);
-
-JakesFadingLossModel::JakesFadingLossModel ()
- : m_nbOfPaths (1, 4),
- m_startJakes (1, 2000),
- m_phy (0)
-{
- NS_LOG_FUNCTION (this);
- SetSamplingPeriod (0.5); // default value
-}
-
-
-TypeId
-JakesFadingLossModel::GetTypeId (void)
-{
- static TypeId tid = TypeId ("ns3::JakesFadingLossModel")
- .SetParent<DiscreteTimeLossModel> ()
- .AddConstructor<JakesFadingLossModel> ()
- ;
- return tid;
-}
-
-
-JakesFadingLossModel::~JakesFadingLossModel ()
-{
- m_phy = 0;
-}
-
-
-void
-JakesFadingLossModel::SetPhy (Ptr<LtePhy> phy)
-{
- NS_LOG_FUNCTION (this);
- m_phy = phy;
-
- SetValue ();
-}
-
-
-Ptr<LtePhy>
-JakesFadingLossModel::GetPhy (void)
-{
- NS_LOG_FUNCTION (this);
- return m_phy;
-}
-
-
-void
-JakesFadingLossModel::SetValue (void)
-{
- NS_LOG_FUNCTION (this);
-
- m_multipath.clear ();
-
- int downlinkSubChannels = GetPhy ()->GetDownlinkSubChannels ().size ();
-
- Ptr<MobilityModel> mobility = GetPhy ()->GetDownlinkSpectrumPhy ()->GetMobility ()->GetObject<MobilityModel> ();
- Vector speedVector = mobility->GetVelocity ();
-
- double speed = sqrt (pow (speedVector.x,2) + pow (speedVector.y,2));
-
- NS_LOG_FUNCTION (this << mobility << speedVector << speed);
-
-
- /*
- * Several 3GPP standards propose a simulation scenario to use duirng the
- * LTE performance evaluation. In particular they suggest to consider these
- * user speeds: 0, 3, 30, 120 km/h. To this aim, we should map user speed
- * into one of the suggested values.
- */
- if (speed < 3.)
- {
- speed = 0;
- }
- else if (speed < 30.)
- {
- speed = 3.;
- }
- else if (speed < 120.)
- {
- speed = 30.;
- }
- else
- {
- speed = 120;
- }
-
- NS_LOG_FUNCTION (this << mobility << speedVector << speed);
-
-
- /*
- * Jackes Model.
- * Jakes popularised a model for Rayleigh fading based on summing sinusoids
- * William C. Jakes, Editor (February 1, 1975).
- * Microwave Mobile Communications.
- * New York: John Wiley & Sons Inc. ISBN 0-471-43720-4
- */
-
- // number of path = M
- // x = 1 -> M=6, x = 2 -> M=8, x = 3 -> M=10, x = 4 -> M=12
- int x = static_cast<int> (m_nbOfPaths.GetValue ());
-
- for (int i = 0; i < downlinkSubChannels; i++)
- {
- // StartJakes allow us to select a window of 0.5ms into the Jakes realization lasting 3s.
- int startJakes = static_cast<int> (m_startJakes.GetValue ());
-
- MultipathForTimeDomain multipathForTimeDomain;
-
- if (x == 1)
- {
- // SELECTED 6 MULTIPLE PATH FOR JAKES MODEL
- if (speed == 0)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M6_v_0 [j + startJakes]);
- }
- }
- if (speed == 3)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M6_v_3 [j + startJakes]);
- }
- }
- if (speed == 30)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M6_v_30 [j + startJakes]);
- }
- }
- if (speed == 120)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M6_v_120 [j + startJakes]);
- }
- }
- }
-
- else if (x == 2)
- {
- // SELECTED 6 MULTIPLE PATH FOR JAKES MODEL
- if (speed == 0)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M8_v_0 [j + startJakes]);
- }
- }
- if (speed == 3)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M8_v_3 [j + startJakes]);
- }
- }
- if (speed == 30)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M8_v_30 [j + startJakes]);
- }
- }
- if (speed == 120)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M8_v_120 [j + startJakes]);
- }
- }
- }
-
- else if (x == 3)
- {
- // SELECTED 6 MULTIPLE PATH FOR JAKES MODEL
- if (speed == 0)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M10_v_0 [j + startJakes]);
- }
- }
- if (speed == 3)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M10_v_3 [j + startJakes]);
- }
- }
- if (speed == 30)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M10_v_30 [j + startJakes]);
- }
- }
- if (speed == 120)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M10_v_120 [j + startJakes]);
- }
- }
- }
-
- else if (x == 4)
- {
- // SELECTED 6 MULTIPLE PATH FOR JAKES MODEL
- if (speed == 0)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M12_v_0 [j + startJakes]);
- }
- }
- if (speed == 3)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M12_v_3 [j + startJakes]);
- }
- }
- if (speed == 30)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M12_v_30 [j + startJakes]);
- }
- }
- if (speed == 120)
- {
- for (int j = 0; j < 500; j++)
- {
- multipathForTimeDomain.push_back (multipath_M12_v_120 [j + startJakes]);
- }
- }
- }
- else
- {
- std::cout << " ERROR: Jaks's Model, incorrect M value" << std::endl;
- }
-
-
- m_multipath.push_back (multipathForTimeDomain);
- }
-
- SetLastUpdate ();
-}
-
-double
-JakesFadingLossModel::GetValue (int subChannel)
-{
- NS_LOG_FUNCTION (this);
- if (NeedForUpdate ())
- {
- SetValue ();
- SetLastUpdate ();
- }
-
- int now_ms = static_cast<int> (Simulator::Now ().GetSeconds () * 1000);
- int lastUpdate_ms = static_cast<int> (GetLastUpdate ().GetSeconds () * 1000);
- int index = now_ms - lastUpdate_ms;
-
- NS_LOG_FUNCTION (this << subChannel << now_ms
- << lastUpdate_ms << index << m_multipath.at (subChannel).at (index));
-
- return m_multipath.at (subChannel).at (index);
-}
-
-
-
-} // namespace ns3