Add draft of X2 handover example
This commit is contained in:
Manuel Requena
158
src/lte/examples/lena-x2-handover.cc
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158
src/lte/examples/lena-x2-handover.cc
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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2012 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
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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: Manuel Requena <manuel.requena@cttc.es>
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*/
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#include "ns3/core-module.h"
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#include "ns3/network-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/mobility-module.h"
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#include "ns3/lte-module.h"
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#include "ns3/applications-module.h"
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#include "ns3/point-to-point-module.h"
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#include "ns3/config-store.h"
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//#include "ns3/gtk-config-store.h"
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using namespace ns3;
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/**
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* Sample simulation script for a X2-based handover.
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* It instantiates two eNodeB, attaches one UE to the 'source' eNB and
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* triggers a handover of the UE towards the 'target' eNB.
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*/
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NS_LOG_COMPONENT_DEFINE ("EpcX2HandoverExample");
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int
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main (int argc, char *argv[])
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{
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LogLevel logLevel = (LogLevel)(LOG_PREFIX_FUNC | LOG_PREFIX_TIME | LOG_LEVEL_ALL);
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LogComponentEnable ("LteHelper", logLevel);
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LogComponentEnable ("EpcHelper", logLevel);
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LogComponentEnable ("EpcEnbApplication", logLevel);
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LogComponentEnable ("EpcX2", logLevel);
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LogComponentEnable ("EpcSgwPgwApplication", logLevel);
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LogComponentEnable ("LteEnbRrc", logLevel);
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LogComponentEnable ("LteEnbNetDevice", logLevel);
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LogComponentEnable ("LteUeRrc", logLevel);
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LogComponentEnable ("LteUeNetDevice", logLevel);
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uint16_t numberOfUes = 1;
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uint16_t numberOfEnbs = 2;
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double simTime = 4.0;
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double distance = 60.0;
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// Command line arguments
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CommandLine cmd;
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cmd.AddValue("numberOfUes", "Number of UEs", numberOfUes);
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cmd.AddValue("numberOfEnbs", "Number of eNodeBs", numberOfEnbs);
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cmd.AddValue("simTime", "Total duration of the simulation (in seconds)",simTime);
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cmd.Parse(argc, argv);
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Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
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Ptr<EpcHelper> epcHelper = CreateObject<EpcHelper> ();
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lteHelper->SetEpcHelper (epcHelper);
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lteHelper->SetSchedulerType("ns3::RrFfMacScheduler");
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Ptr<Node> pgw = epcHelper->GetPgwNode ();
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// Create a single RemoteHost
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NodeContainer remoteHostContainer;
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remoteHostContainer.Create (1);
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Ptr<Node> remoteHost = remoteHostContainer.Get (0);
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InternetStackHelper internet;
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internet.Install (remoteHostContainer);
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// Create the Internet
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PointToPointHelper p2ph;
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p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
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p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
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p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.010)));
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NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
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Ipv4AddressHelper ipv4h;
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ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
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Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
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// Routing of the Internet Host (towards the LTE network)
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Ipv4StaticRoutingHelper ipv4RoutingHelper;
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Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
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// interface 0 is localhost, 1 is the p2p device
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remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
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NodeContainer ueNodes;
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NodeContainer enbNodes;
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enbNodes.Create(numberOfEnbs);
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ueNodes.Create(numberOfUes);
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// Install Mobility Model
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Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
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for (uint16_t i = 0; i < numberOfEnbs; i++)
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{
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positionAlloc->Add (Vector(distance * i, 0, 0));
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}
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MobilityHelper mobility;
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mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
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mobility.SetPositionAllocator(positionAlloc);
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mobility.Install(enbNodes);
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mobility.Install(ueNodes);
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// Install LTE Devices in eNB and UEs
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NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice (enbNodes);
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NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice (ueNodes);
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// Attach all UEs to the first eNodeB
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for (uint16_t i = 0; i < numberOfUes; i++)
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{
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lteHelper->Attach (ueLteDevs.Get(i), enbLteDevs.Get(0));
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}
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// Install the IP stack on the UEs
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internet.Install (ueNodes);
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Ipv4InterfaceContainer ueIpIface;
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ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueLteDevs));
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// Assign IP address to UEs, and install applications
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for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
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{
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Ptr<Node> ueNode = ueNodes.Get (u);
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// Set the default gateway for the UE
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Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
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ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
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}
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// Activate an EPS Bearer (including Radio Bearer) between UEs and its eNB
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lteHelper->ActivateEpsBearer (ueLteDevs, EpsBearer (EpsBearer::NGBR_VIDEO_TCP_DEFAULT), EpcTft::Default ());
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// Add X2 inteface
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lteHelper->AddX2Interface (enbNodes);
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// X2-based Handover
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lteHelper->HandoverRequest (Seconds (2.0), ueNodes.Get (0), enbNodes.Get (0), enbNodes.Get (1));
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Simulator::Stop(Seconds(simTime));
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Simulator::Run();
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// GtkConfigStore config;
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// config.ConfigureAttributes();
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Simulator::Destroy();
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return 0;
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}
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@@ -61,6 +61,9 @@ def build(bld):
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'model/trace-fading-loss-model.cc',
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'model/epc-enb-application.cc',
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'model/epc-sgw-pgw-application.cc',
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'model/epc-x2-sap.cc',
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'model/epc-x2-header.cc',
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'model/epc-x2.cc',
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'model/epc-tft.cc',
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'model/epc-tft-classifier.cc',
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'model/lte-mi-error-model.cc'
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@@ -157,6 +160,9 @@ def build(bld):
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'model/epc-gtpu-header.h',
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'model/epc-enb-application.h',
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'model/epc-sgw-pgw-application.h',
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'model/epc-x2-sap.h',
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'model/epc-x2-header.h',
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'model/epc-x2.h',
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'test/lte-test-downlink-sinr.h',
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'test/lte-test-uplink-sinr.h',
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'test/lte-test-link-adaptation.h',
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