A Discrete-Event Network Simulator
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wifi-clear-channel-cmu.cc
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1/*
2 * Copyright (c) 2009 The Boeing Company
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 * Author: Guangyu Pei <guangyu.pei@boeing.com>
18 */
19
20#include "ns3/command-line.h"
21#include "ns3/config.h"
22#include "ns3/double.h"
23#include "ns3/gnuplot.h"
24#include "ns3/internet-stack-helper.h"
25#include "ns3/ipv4-address-helper.h"
26#include "ns3/log.h"
27#include "ns3/mobility-helper.h"
28#include "ns3/mobility-model.h"
29#include "ns3/string.h"
30#include "ns3/yans-wifi-channel.h"
31#include "ns3/yans-wifi-helper.h"
32
33using namespace ns3;
34
35NS_LOG_COMPONENT_DEFINE("ClearChannelCmu");
36
42class Experiment
43{
44 public:
50 Experiment(std::string name);
59 uint32_t Run(const WifiHelper& wifi,
60 const YansWifiPhyHelper& wifiPhy,
61 const WifiMacHelper& wifiMac,
62 const YansWifiChannelHelper& wifiChannel);
63
64 private:
75 void SetPosition(Ptr<Node> node, Vector position);
81 Vector GetPosition(Ptr<Node> node);
95 void GenerateTraffic(Ptr<Socket> socket, uint32_t pktSize, uint32_t pktCount, Time pktInterval);
96
99};
100
102{
103}
104
105Experiment::Experiment(std::string name)
106 : m_output(name)
107{
109}
110
111void
112Experiment::SetPosition(Ptr<Node> node, Vector position)
113{
114 Ptr<MobilityModel> mobility = node->GetObject<MobilityModel>();
115 mobility->SetPosition(position);
116}
117
118Vector
120{
121 Ptr<MobilityModel> mobility = node->GetObject<MobilityModel>();
122 return mobility->GetPosition();
123}
124
125void
127{
128 Ptr<Packet> packet;
129 while ((packet = socket->Recv()))
130 {
131 m_pktsTotal++;
132 }
133}
134
137{
138 TypeId tid = TypeId::LookupByName("ns3::UdpSocketFactory");
141 sink->Bind(local);
142 sink->SetRecvCallback(MakeCallback(&Experiment::ReceivePacket, this));
143 return sink;
144}
145
146void
149 uint32_t pktCount,
150 Time pktInterval)
151{
152 if (pktCount > 0)
153 {
154 socket->Send(Create<Packet>(pktSize));
155 Simulator::Schedule(pktInterval,
157 this,
158 socket,
159 pktSize,
160 pktCount - 1,
161 pktInterval);
162 }
163 else
164 {
165 socket->Close();
166 }
167}
168
170Experiment::Run(const WifiHelper& wifi,
171 const YansWifiPhyHelper& wifiPhy,
172 const WifiMacHelper& wifiMac,
173 const YansWifiChannelHelper& wifiChannel)
174{
175 m_pktsTotal = 0;
176
178 c.Create(2);
179
180 InternetStackHelper internet;
181 internet.Install(c);
182
183 YansWifiPhyHelper phy = wifiPhy;
184 phy.SetChannel(wifiChannel.Create());
185
186 NetDeviceContainer devices = wifi.Install(phy, wifiMac, c);
187
188 MobilityHelper mobility;
189 Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator>();
190 positionAlloc->Add(Vector(0.0, 0.0, 0.0));
191 positionAlloc->Add(Vector(5.0, 0.0, 0.0));
192 mobility.SetPositionAllocator(positionAlloc);
193 mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
194 mobility.Install(c);
195
197 NS_LOG_INFO("Assign IP Addresses.");
198 ipv4.SetBase("10.1.1.0", "255.255.255.0");
199 Ipv4InterfaceContainer i = ipv4.Assign(devices);
200
201 Ptr<Socket> recvSink = SetupPacketReceive(c.Get(0));
202
203 TypeId tid = TypeId::LookupByName("ns3::UdpSocketFactory");
204 Ptr<Socket> source = Socket::CreateSocket(c.Get(1), tid);
205 InetSocketAddress remote = InetSocketAddress(Ipv4Address("255.255.255.255"), 80);
206 source->SetAllowBroadcast(true);
207 source->Connect(remote);
208 uint32_t packetSize = 1014;
209 uint32_t maxPacketCount = 200;
210 Time interPacketInterval = Seconds(1.);
213 this,
214 source,
216 maxPacketCount,
217 interPacketInterval);
219
221
222 return m_pktsTotal;
223}
224
225int
226main(int argc, char* argv[])
227{
228 std::ofstream outfile("clear-channel.plt");
229
230 const std::vector<std::string> modes{
231 "DsssRate1Mbps",
232 "DsssRate2Mbps",
233 "DsssRate5_5Mbps",
234 "DsssRate11Mbps",
235 };
236
237 CommandLine cmd(__FILE__);
238 cmd.Parse(argc, argv);
239
240 Gnuplot gnuplot = Gnuplot("clear-channel.eps");
241
242 for (uint32_t i = 0; i < modes.size(); i++)
243 {
244 std::cout << modes[i] << std::endl;
245 Gnuplot2dDataset dataset(modes[i]);
246
247 for (double rss = -102.0; rss <= -80.0; rss += 0.5)
248 {
250 dataset.SetStyle(Gnuplot2dDataset::LINES);
251
253 wifi.SetStandard(WIFI_STANDARD_80211b);
254 WifiMacHelper wifiMac;
255 Config::SetDefault("ns3::WifiRemoteStationManager::NonUnicastMode",
256 StringValue(modes[i]));
257 wifi.SetRemoteStationManager("ns3::ConstantRateWifiManager",
258 "DataMode",
259 StringValue(modes[i]),
260 "ControlMode",
261 StringValue(modes[i]));
262 wifiMac.SetType("ns3::AdhocWifiMac");
263
264 YansWifiPhyHelper wifiPhy;
265 YansWifiChannelHelper wifiChannel;
266 wifiChannel.SetPropagationDelay("ns3::ConstantSpeedPropagationDelayModel");
267 wifiChannel.AddPropagationLoss("ns3::FixedRssLossModel", "Rss", DoubleValue(rss));
268
269 NS_LOG_DEBUG(modes[i]);
270 experiment = Experiment(modes[i]);
271 wifiPhy.Set("TxPowerStart", DoubleValue(15.0));
272 wifiPhy.Set("TxPowerEnd", DoubleValue(15.0));
273 wifiPhy.Set("RxGain", DoubleValue(0));
274 wifiPhy.Set("RxNoiseFigure", DoubleValue(7));
275 uint32_t pktsRecvd = experiment.Run(wifi, wifiPhy, wifiMac, wifiChannel);
276 dataset.Add(rss, pktsRecvd);
277 }
278
279 gnuplot.AddDataset(dataset);
280 }
281 gnuplot.SetTerminal("postscript eps color enh \"Times-BoldItalic\"");
282 gnuplot.SetLegend("RSS(dBm)", "Number of packets received");
283 gnuplot.SetExtra("set xrange [-102:-83]");
284 gnuplot.GenerateOutput(outfile);
285 outfile.close();
286
287 return 0;
288}
WiFi adhoc experiment class.
Definition: wifi-adhoc.cc:45
uint32_t Run(const WifiHelper &wifi, const YansWifiPhyHelper &wifiPhy, const WifiMacHelper &wifiMac, const YansWifiChannelHelper &wifiChannel)
Run an experiment.
void GenerateTraffic(Ptr< Socket > socket, uint32_t pktSize, uint32_t pktCount, Time pktInterval)
Generate the traffic.
void ReceivePacket(Ptr< Socket > socket)
Receive a packet.
void SetPosition(Ptr< Node > node, Vector position)
Set the position of a node.
Gnuplot2dDataset m_output
The output dataset.
Definition: wifi-adhoc.cc:98
Ptr< Socket > SetupPacketReceive(Ptr< Node > node)
Setup the receiving socket.
uint32_t m_pktsTotal
Total number of received packets.
Experiment(std::string name)
Constructor.
Vector GetPosition(Ptr< Node > node)
Get the position of a node.
Parse command-line arguments.
Definition: command-line.h:232
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition: double.h:42
Class to represent a 2D points plot.
Definition: gnuplot.h:116
void SetStyle(Style style)
Definition: gnuplot.cc:359
a simple class to generate gnuplot-ready plotting commands from a set of datasets.
Definition: gnuplot.h:370
void AddDataset(const GnuplotDataset &dataset)
Definition: gnuplot.cc:796
void SetLegend(const std::string &xLegend, const std::string &yLegend)
Definition: gnuplot.cc:776
void SetTerminal(const std::string &terminal)
Definition: gnuplot.cc:764
void GenerateOutput(std::ostream &os)
Writes gnuplot commands and data values to a single output stream.
Definition: gnuplot.cc:802
void SetExtra(const std::string &extra)
Definition: gnuplot.cc:783
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:42
static Ipv4Address GetAny()
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Helper class used to assign positions and mobility models to nodes.
Keep track of the current position and velocity of an object.
holds a vector of ns3::NetDevice pointers
keep track of a set of node pointers.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:77
static EventId Schedule(const Time &delay, FUNC f, Ts &&... args)
Schedule an event to expire after delay.
Definition: simulator.h:571
static void Destroy()
Execute the events scheduled with ScheduleDestroy().
Definition: simulator.cc:142
static void Run()
Run the simulation.
Definition: simulator.cc:178
static Ptr< Socket > CreateSocket(Ptr< Node > node, TypeId tid)
This method wraps the creation of sockets that is performed on a given node by a SocketFactory specif...
Definition: socket.cc:72
Hold variables of type string.
Definition: string.h:56
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:105
a unique identifier for an interface.
Definition: type-id.h:59
static TypeId LookupByName(std::string name)
Get a TypeId by name.
Definition: type-id.cc:836
helps to create WifiNetDevice objects
Definition: wifi-helper.h:324
create MAC layers for a ns3::WifiNetDevice.
void SetType(std::string type, Args &&... args)
void Set(std::string name, const AttributeValue &v)
Definition: wifi-helper.cc:163
manage and create wifi channel objects for the YANS model.
void SetPropagationDelay(std::string name, Ts &&... args)
void AddPropagationLoss(std::string name, Ts &&... args)
Ptr< YansWifiChannel > Create() const
Make it easy to create and manage PHY objects for the YANS model.
void experiment(std::string queue_disc_type)
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:894
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition: log.h:268
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:275
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1326
@ WIFI_STANDARD_80211b
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Definition: callback.h:704
ns cmd
Definition: second.py:40
ns wifi
Definition: third.py:95
ns mobility
Definition: third.py:105
uint32_t pktSize
packet size used for the simulation (in bytes)
static const uint32_t packetSize
Packet size generated at the AP.
Ptr< PacketSink > sink
Pointer to the packet sink application.
Definition: wifi-tcp.cc:55