我必须建立一个拓扑结构，其中2个节点通过wifi网络或蜂窝网络连接。
在ns-3中，我找不到这样做的例子。
如何构建拓扑结构？
NS3只有4G网络模块、WiMax和LTE。NS3没有2G或3G模块。
这里是使用蜂窝网络和Wifi网络的组合来创建向汇聚节点发送UDP分组的源节点的拓扑的示例。
LTE网络+Wifi网络
#include "ns3/lte-helper.h"
#include "ns3/epc-helper.h"
#include "ns3/core-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/wifi-module.h"
#include "ns3/csma-module.h"
#include "ns3/network-module.h"
#include "ns3/applications-module.h"
#include "ns3/mobility-module.h"
#include "ns3/config-store-module.h"
#include "ns3/wimax-module.h"
#include "ns3/internet-module.h"
#include "ns3/global-route-manager.h"
#include "ns3/ipcs-classifier-record.h"
#include "ns3/service-flow.h"
#include <iostream>
#include "ns3/ipv4-global-routing-helper.h"
#include "ns3/mobility-module.h"
#include "ns3/lte-module.h"
#include "ns3/point-to-point-helper.h"
#include <iomanip>
#include <string>
#include <fstream>
#include <vector>
NS_LOG_COMPONENT_DEFINE ("WimaxSimpleExample");
using namespace ns3;
int main (int argc, char *argv[])
{
Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
bool verbose = false;
int duration = 500, schedType = 0;
uint16_t numberOfUEs=2; //Default number of ues attached to each eNodeB
Ptr<LteHelper> lteHelper; //Define LTE
Ptr<EpcHelper> epcHelper; //Define EPC
NodeContainer remoteHostContainer; //Define the Remote Host
NetDeviceContainer internetDevices; //Define the Network Devices in the Connection between EPC and the remote host
Ptr<Node> pgw; //Define the Packet Data Network Gateway(P-GW)
Ptr<Node> remoteHost; //Define the node of remote Host
InternetStackHelper internet; //Define the internet stack
PointToPointHelper p2ph; //Define Connection between EPC and the Remote Host
Ipv4AddressHelper ipv4h; //Ipv4 address helper
Ipv4StaticRoutingHelper ipv4RoutingHelper; //Ipv4 static routing helper
Ptr<Ipv4StaticRouting> remoteHostStaticRouting;
Ipv4InterfaceContainer internetIpIfaces; //Ipv4 interfaces
CommandLine cmd;
cmd.AddValue ("scheduler", "type of scheduler to use with the network devices", schedType);
cmd.AddValue ("duration", "duration of the simulation in seconds", duration);
cmd.AddValue ("verbose", "turn on all WimaxNetDevice log components", verbose);
cmd.Parse (argc, argv);
LogComponentEnable ("UdpClient", LOG_LEVEL_INFO);
LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);
//LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
//LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
NodeContainer ssNodes;
NodeContainer bsNodes;
ssNodes.Create (2);
bsNodes.Create (1);
uint32_t nCsma = 3;
NodeContainer p2pNodes;
p2pNodes.Create (2);
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
NetDeviceContainer p2pDevices;
p2pDevices = pointToPoint.Install (p2pNodes);
NodeContainer csmaNodes;
csmaNodes.Add (p2pNodes.Get (1));
csmaNodes.Create (nCsma);
CsmaHelper csma;
csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));
NetDeviceContainer csmaDevices;
csmaDevices = csma.Install (csmaNodes);
NodeContainer wifiApNode = p2pNodes.Get (0);
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi = WifiHelper::Default ();
wifi.SetRemoteStationManager ("ns3::AarfWifiManager");
NqosWifiMacHelper mac = NqosWifiMacHelper::Default ();
Ssid ssid = Ssid ("ns-3-ssid");
mac.SetType ("ns3::StaWifiMac",
"Ssid", SsidValue (ssid),
"ActiveProbing", BooleanValue (false));
NetDeviceContainer staDevices;
staDevices = wifi.Install (phy, mac, ssNodes);
mac.SetType ("ns3::ApWifiMac",
"Ssid", SsidValue (ssid));
NetDeviceContainer apDevices;
apDevices = wifi.Install (phy, mac, wifiApNode);
MobilityHelper mobility1;
mobility1.SetPositionAllocator ("ns3::GridPositionAllocator",
"MinX", DoubleValue (0.0),
"MinY", DoubleValue (0.0),
"DeltaX", DoubleValue (5.0),
"DeltaY", DoubleValue (10.0),
"GridWidth", UintegerValue (3),
"LayoutType", StringValue ("RowFirst"));
mobility1.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility1.Install (wifiApNode);
(wifiApNode.Get(0) -> GetObject<ConstantPositionMobilityModel>()) -> SetPosition(Vector(100.0, 501.0, 0.0));
InternetStackHelper stack1;
stack1.Install (csmaNodes);
stack1.Install (wifiApNode);
stack1.Install (ssNodes);
Ipv4AddressHelper address1;
address1.SetBase ("11.1.1.0", "255.255.255.0");
Ipv4InterfaceContainer p2pInterfaces;
p2pInterfaces = address1.Assign (p2pDevices);
address1.SetBase ("11.1.2.0", "255.255.255.0");
Ipv4InterfaceContainer csmaInterfaces;
csmaInterfaces = address1.Assign (csmaDevices);
address1.SetBase ("11.1.3.0", "255.255.255.0");
address1.Assign (staDevices);
address1.Assign (apDevices);
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps1 = echoServer.Install (csmaNodes.Get (nCsma));
serverApps1.Start (Seconds (1.0));
serverApps1.Stop (Seconds (duration+0.1));
UdpEchoClientHelper echoClient (csmaInterfaces.GetAddress (nCsma), 9);
echoClient.SetAttribute ("MaxPackets", UintegerValue (1000));
echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));
echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
ApplicationContainer clientApps1 =
echoClient.Install (ssNodes.Get (0));
clientApps1.Start (Seconds (2.0));
clientApps1.Stop (Seconds (duration+0.1));
Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
//pointToPoint.EnablePcapAll ("third");
phy.EnablePcap ("third", apDevices.Get (0));
//csma.EnablePcap ("third", csmaDevices.Get (0), true);
lteHelper = CreateObject<LteHelper> ();
epcHelper = CreateObject<EpcHelper> ();
lteHelper->SetEpcHelper (epcHelper);
lteHelper->SetSchedulerType("ns3::RrFfMacScheduler");
lteHelper->SetAttribute ("PathlossModel",
StringValue ("ns3::FriisPropagationLossModel"));
pgw = epcHelper->GetPgwNode ();
remoteHostContainer.Create (1);
remoteHost = remoteHostContainer.Get (0);
internet.Install (remoteHostContainer);
p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.010)));
internetDevices = p2ph.Install (pgw, remoteHost);
ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
internetIpIfaces = ipv4h.Assign (internetDevices);
remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
std::cout << "2. Installing LTE+EPC+remotehost. Done!" << std::endl;
MobilityHelper mobility;
Ptr<ListPositionAllocator> positionAlloc;
positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (0.0, 500.0, 0.0)); //STA
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantVelocityMobilityModel");
mobility.Install(ssNodes.Get(0));
Ptr<ConstantVelocityMobilityModel> cvm = ssNodes.Get(0)->GetObject<ConstantVelocityMobilityModel>();
cvm->SetVelocity(Vector (5, 0, 0)); //move to left to right 10.0m/s
positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (0.0, 500.0, 10.0)); //MAG1AP
positionAlloc->Add (Vector (0.0, 510.0, 0.0)); //MAG2AP
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility.Install (NodeContainer(bsNodes.Get(0),ssNodes.Get(1)));
NetDeviceContainer ssDevs, bsDevs;
bsDevs = lteHelper->InstallEnbDevice (bsNodes);
ssDevs=lteHelper->InstallUeDevice (ssNodes);
for (uint16_t j=0; j < numberOfUEs; j++)
{
lteHelper->Attach (ssDevs.Get(j), bsDevs.Get(0));
}
Ipv4InterfaceContainer iueIpIface;
iueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ssDevs));
lteHelper->ActivateEpsBearer (ssDevs, EpsBearer (EpsBearer::NGBR_VIDEO_TCP_DEFAULT), EpcTft::Default ());
UdpServerHelper udpServer;
ApplicationContainer serverApps;
UdpClientHelper udpClient;
ApplicationContainer clientApps;
udpServer = UdpServerHelper (100);
serverApps = udpServer.Install (ssNodes.Get (0));
serverApps.Start (Seconds (6));
serverApps.Stop (Seconds (duration));
udpClient = UdpClientHelper (iueIpIface.GetAddress (0), 100);
udpClient.SetAttribute ("MaxPackets", UintegerValue (200000));
udpClient.SetAttribute ("Interval", TimeValue (Seconds (0.004)));
udpClient.SetAttribute ("PacketSize", UintegerValue (1024));
clientApps = udpClient.Install (remoteHost);
clientApps.Start (Seconds (6));
clientApps.Stop (Seconds (duration));
lteHelper->EnableTraces ();
NS_LOG_INFO ("Starting simulation.....");
Simulator::Stop(Seconds(duration));
Simulator::Run ();
Simulator::Destroy ();
NS_LOG_INFO ("Done.");
return 0;
}
WiMax网络+Wifi网络
#include "ns3/core-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/wifi-module.h"
#include "ns3/csma-module.h"
#include "ns3/network-module.h"
#include "ns3/applications-module.h"
#include "ns3/mobility-module.h"
#include "ns3/config-store-module.h"
#include "ns3/wimax-module.h"
#include "ns3/internet-module.h"
#include "ns3/global-route-manager.h"
#include "ns3/ipcs-classifier-record.h"
#include "ns3/service-flow.h"
#include <iostream>
NS_LOG_COMPONENT_DEFINE ("WimaxSimpleExample");
using namespace ns3;
int main (int argc, char *argv[])
{
bool verbose = false;
int duration = 1000, schedType = 0;
WimaxHelper::SchedulerType scheduler = WimaxHelper::SCHED_TYPE_SIMPLE;
CommandLine cmd;
cmd.AddValue ("scheduler", "type of scheduler to use with the network devices", schedType);
cmd.AddValue ("duration", "duration of the simulation in seconds", duration);
cmd.AddValue ("verbose", "turn on all WimaxNetDevice log components", verbose);
cmd.Parse (argc, argv);
LogComponentEnable ("UdpClient", LOG_LEVEL_INFO);
LogComponentEnable ("UdpServer", LOG_LEVEL_INFO);
//LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
//LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
switch (schedType)
{
case 0:
scheduler = WimaxHelper::SCHED_TYPE_SIMPLE;
break;
case 1:
scheduler = WimaxHelper::SCHED_TYPE_MBQOS;
break;
case 2:
scheduler = WimaxHelper::SCHED_TYPE_RTPS;
break;
default:
scheduler = WimaxHelper::SCHED_TYPE_SIMPLE;
}
NodeContainer ssNodes;
NodeContainer bsNodes;
ssNodes.Create (2);
bsNodes.Create (1);
uint32_t nCsma = 3;
NodeContainer p2pNodes;
p2pNodes.Create (2);
PointToPointHelper pointToPoint;
pointToPoint.SetDeviceAttribute ("DataRate", StringValue ("5Mbps"));
pointToPoint.SetChannelAttribute ("Delay", StringValue ("2ms"));
NetDeviceContainer p2pDevices;
p2pDevices = pointToPoint.Install (p2pNodes);
NodeContainer csmaNodes;
csmaNodes.Add (p2pNodes.Get (1));
csmaNodes.Create (nCsma);
CsmaHelper csma;
csma.SetChannelAttribute ("DataRate", StringValue ("100Mbps"));
csma.SetChannelAttribute ("Delay", TimeValue (NanoSeconds (6560)));
NetDeviceContainer csmaDevices;
csmaDevices = csma.Install (csmaNodes);
NodeContainer wifiApNode = p2pNodes.Get (0);
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
phy.SetChannel (channel.Create ());
WifiHelper wifi = WifiHelper::Default ();
wifi.SetRemoteStationManager ("ns3::AarfWifiManager");
NqosWifiMacHelper mac = NqosWifiMacHelper::Default ();
Ssid ssid = Ssid ("ns-3-ssid");
mac.SetType ("ns3::StaWifiMac",
"Ssid", SsidValue (ssid),
"ActiveProbing", BooleanValue (false));
NetDeviceContainer staDevices;
staDevices = wifi.Install (phy, mac, ssNodes);
mac.SetType ("ns3::ApWifiMac",
"Ssid", SsidValue (ssid));
NetDeviceContainer apDevices;
apDevices = wifi.Install (phy, mac, wifiApNode);
MobilityHelper mobility1;
mobility1.SetPositionAllocator ("ns3::GridPositionAllocator",
"MinX", DoubleValue (0.0),
"MinY", DoubleValue (0.0),
"DeltaX", DoubleValue (5.0),
"DeltaY", DoubleValue (10.0),
"GridWidth", UintegerValue (3),
"LayoutType", StringValue ("RowFirst"));
mobility1.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility1.Install (wifiApNode);
(wifiApNode.Get(0) -> GetObject<ConstantPositionMobilityModel>()) -> SetPosition(Vector(800.0, 0.0, 0.0));
InternetStackHelper stack1;
stack1.Install (csmaNodes);
stack1.Install (wifiApNode);
stack1.Install (ssNodes);
Ipv4AddressHelper address1;
address1.SetBase ("11.1.1.0", "255.255.255.0");
Ipv4InterfaceContainer p2pInterfaces;
p2pInterfaces = address1.Assign (p2pDevices);
address1.SetBase ("11.1.2.0", "255.255.255.0");
Ipv4InterfaceContainer csmaInterfaces;
csmaInterfaces = address1.Assign (csmaDevices);
address1.SetBase ("11.1.3.0", "255.255.255.0");
address1.Assign (staDevices);
address1.Assign (apDevices);
UdpEchoServerHelper echoServer (9);
ApplicationContainer serverApps1 = echoServer.Install (csmaNodes.Get (nCsma));
serverApps1.Start (Seconds (1.0));
serverApps1.Stop (Seconds (duration));
UdpEchoClientHelper echoClient (csmaInterfaces.GetAddress (nCsma), 9);
echoClient.SetAttribute ("MaxPackets", UintegerValue (1000));
echoClient.SetAttribute ("Interval", TimeValue (Seconds (1.)));
echoClient.SetAttribute ("PacketSize", UintegerValue (1024));
ApplicationContainer clientApps1 =
echoClient.Install (ssNodes.Get (0));
clientApps1.Start (Seconds (2.0));
clientApps1.Stop (Seconds (duration));
Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
//pointToPoint.EnablePcapAll ("third");
phy.EnablePcap ("third", apDevices.Get (0));
//csma.EnablePcap ("third", csmaDevices.Get (0), true);
WimaxHelper wimax;
NetDeviceContainer ssDevs, bsDevs;
ssDevs = wimax.Install (ssNodes,
WimaxHelper::DEVICE_TYPE_SUBSCRIBER_STATION,
WimaxHelper::SIMPLE_PHY_TYPE_OFDM,
scheduler);
bsDevs = wimax.Install (bsNodes, WimaxHelper::DEVICE_TYPE_BASE_STATION, WimaxHelper::SIMPLE_PHY_TYPE_OFDM, scheduler);
wimax.EnableAscii ("bs-devices", bsDevs);
wimax.EnableAscii ("ss-devices", ssDevs);
Ptr<SubscriberStationNetDevice> ss[2];
for (int i = 0; i < 2; i++)
{
ss[i] = ssDevs.Get (i)->GetObject<SubscriberStationNetDevice> ();
ss[i]->SetModulationType (WimaxPhy::MODULATION_TYPE_QAM16_12);
}
Ptr<BaseStationNetDevice> bs;
bs = bsDevs.Get (0)->GetObject<BaseStationNetDevice> ();
MobilityHelper mobility;
Ptr<ListPositionAllocator> positionAlloc;
positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (-1061.0, 70.0, 0.0)); //STA
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantVelocityMobilityModel");
mobility.Install(ssNodes.Get(0));
Ptr<ConstantVelocityMobilityModel> cvm = ssNodes.Get(0)->GetObject<ConstantVelocityMobilityModel>();
cvm->SetVelocity(Vector (5, 0, 0)); //move to left to right 10.0m/s
positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (-0.0, 40.0, 0.0)); //MAG1AP
positionAlloc->Add (Vector (0.0, 40.0, 0.0)); //MAG2AP
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility.Install (NodeContainer(bsNodes.Get(0),ssNodes.Get(1)));
InternetStackHelper stack;
stack.Install (bsNodes);
//stack.Install (ssNodes);
Ipv4AddressHelper address;
address.SetBase ("10.1.1.0", "255.255.255.0");
Ipv4InterfaceContainer SSinterfaces = address.Assign (ssDevs);
Ipv4InterfaceContainer BSinterface = address.Assign (bsDevs);
if (verbose)
{
wimax.EnableLogComponents (); // Turn on all wimax logging
}
/*------------------------------*/
UdpServerHelper udpServer;
ApplicationContainer serverApps;
UdpClientHelper udpClient;
ApplicationContainer clientApps;
udpServer = UdpServerHelper (100);
serverApps = udpServer.Install (ssNodes.Get (0));
serverApps.Start (Seconds (6));
serverApps.Stop (Seconds (duration));
udpClient = UdpClientHelper (SSinterfaces.GetAddress (0), 100);
udpClient.SetAttribute ("MaxPackets", UintegerValue (1200));
udpClient.SetAttribute ("Interval", TimeValue (Seconds (0.5)));
udpClient.SetAttribute ("PacketSize", UintegerValue (1024));
clientApps = udpClient.Install (ssNodes.Get (1));
clientApps.Start (Seconds (6));
clientApps.Stop (Seconds (duration));
Simulator::Stop (Seconds (duration + 0.1));
wimax.EnablePcap ("wimax-simple-ss0", ssNodes.Get (0)->GetId (), ss[0]->GetIfIndex ());
wimax.EnablePcap ("wimax-simple-ss1", ssNodes.Get (1)->GetId (), ss[1]->GetIfIndex ());
wimax.EnablePcap ("wimax-simple-bs0", bsNodes.Get (0)->GetId (), bs->GetIfIndex ());
IpcsClassifierRecord DlClassifierUgs (Ipv4Address ("0.0.0.0"),
Ipv4Mask ("0.0.0.0"),
SSinterfaces.GetAddress (0),
Ipv4Mask ("255.255.255.255"),
0,
65000,
100,
100,
17,
1);
ServiceFlow DlServiceFlowUgs = wimax.CreateServiceFlow (ServiceFlow::SF_DIRECTION_DOWN,
ServiceFlow::SF_TYPE_RTPS,
DlClassifierUgs);
IpcsClassifierRecord UlClassifierUgs (SSinterfaces.GetAddress (1),
Ipv4Mask ("255.255.255.255"),
Ipv4Address ("0.0.0.0"),
Ipv4Mask ("0.0.0.0"),
0,
65000,
100,
100,
17,
1);
ServiceFlow UlServiceFlowUgs = wimax.CreateServiceFlow (ServiceFlow::SF_DIRECTION_UP,
ServiceFlow::SF_TYPE_RTPS,
UlClassifierUgs);
ss[0]->AddServiceFlow (DlServiceFlowUgs);
ss[1]->AddServiceFlow (UlServiceFlowUgs);
NS_LOG_INFO ("Starting simulation.....");
Simulator::Run ();
ss[0] = 0;
ss[1] = 0;
bs = 0;
Simulator::Destroy ();
NS_LOG_INFO ("Done.");
return 0;
}
代码属于GPL2下的作者：https://code.google.com/p/tesis-ns3/source/browse/trunk/lena/scratch/?r=5