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A Discrete-Event Network Simulator
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API
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Go to the documentation of this file.
21 #include "ns3/command-line.h"
22 #include "ns3/config.h"
23 #include "ns3/uinteger.h"
24 #include "ns3/boolean.h"
25 #include "ns3/double.h"
26 #include "ns3/string.h"
28 #include "ns3/yans-wifi-helper.h"
30 #include "ns3/mobility-helper.h"
31 #include "ns3/internet-stack-helper.h"
32 #include "ns3/ipv4-address-helper.h"
33 #include "ns3/udp-client-server-helper.h"
34 #include "ns3/packet-sink-helper.h"
35 #include "ns3/on-off-helper.h"
36 #include "ns3/ipv4-global-routing-helper.h"
37 #include "ns3/packet-sink.h"
38 #include "ns3/yans-wifi-channel.h"
60 int main (
int argc,
char *argv[])
64 double simulationTime = 10;
65 double distance = 1.0;
67 double minExpectedThroughput = 0;
68 double maxExpectedThroughput = 0;
71 cmd.AddValue (
"distance",
"Distance in meters between the station and the access point", distance);
72 cmd.AddValue (
"simulationTime",
"Simulation time in seconds", simulationTime);
73 cmd.AddValue (
"udp",
"UDP if set to 1, TCP otherwise", udp);
74 cmd.AddValue (
"useRts",
"Enable/disable RTS/CTS", useRts);
75 cmd.AddValue (
"mcs",
"if set, limit testing to a specific MCS (0-9)", mcs);
76 cmd.AddValue (
"minExpectedThroughput",
"if set, simulation fails if the lowest throughput is below this value", minExpectedThroughput);
77 cmd.AddValue (
"maxExpectedThroughput",
"if set, simulation fails if the highest throughput is above this value", maxExpectedThroughput);
78 cmd.Parse (argc,argv);
85 double prevThroughput [8];
86 for (uint32_t l = 0; l < 8; l++)
88 prevThroughput[l] = 0;
90 std::cout <<
"MCS value" <<
"\t\t" <<
"Channel width" <<
"\t\t" <<
"short GI" <<
"\t\t" <<
"Throughput" <<
'\n';
93 if (mcs >= 0 && mcs <= 9)
98 for (
int mcs = minMcs; mcs <= maxMcs; mcs++)
102 for (
int channelWidth = 20; channelWidth <= 160; )
104 if (mcs == 9 && channelWidth == 20)
109 for (
int sgi = 0; sgi < 2; sgi++)
111 uint32_t payloadSize;
135 std::ostringstream oss;
136 oss <<
"VhtMcs" << mcs;
137 wifi.SetRemoteStationManager (
"ns3::ConstantRateWifiManager",
"DataMode",
StringValue (oss.str ()),
142 mac.SetType (
"ns3::StaWifiMac",
147 staDevice =
wifi.Install (
phy,
mac, wifiStaNode);
149 mac.SetType (
"ns3::ApWifiMac",
158 Config::Set (
"/NodeList/*/DeviceList/*/$ns3::WifiNetDevice/HtConfiguration/ShortGuardIntervalSupported",
BooleanValue (sgi));
164 positionAlloc->
Add (Vector (0.0, 0.0, 0.0));
165 positionAlloc->
Add (Vector (distance, 0.0, 0.0));
166 mobility.SetPositionAllocator (positionAlloc);
168 mobility.SetMobilityModel (
"ns3::ConstantPositionMobilityModel");
176 stack.Install (wifiStaNode);
179 address.SetBase (
"192.168.1.0",
"255.255.255.0");
183 staNodeInterface =
address.Assign (staDevice);
184 apNodeInterface =
address.Assign (apDevice);
193 serverApp = server.Install (wifiStaNode.
Get (0));
198 client.SetAttribute (
"MaxPackets",
UintegerValue (4294967295u));
199 client.SetAttribute (
"Interval",
TimeValue (
Time (
"0.00002")));
200 client.SetAttribute (
"PacketSize",
UintegerValue (payloadSize));
208 uint16_t
port = 50000;
211 serverApp = packetSinkHelper.Install (wifiStaNode.
Get (0));
216 onoff.SetAttribute (
"OnTime",
StringValue (
"ns3::ConstantRandomVariable[Constant=1]"));
217 onoff.SetAttribute (
"OffTime",
StringValue (
"ns3::ConstantRandomVariable[Constant=0]"));
218 onoff.SetAttribute (
"PacketSize",
UintegerValue (payloadSize));
221 onoff.SetAttribute (
"Remote", remoteAddress);
232 uint64_t rxBytes = 0;
235 rxBytes = payloadSize * DynamicCast<UdpServer> (serverApp.
Get (0))->GetReceived ();
239 rxBytes = DynamicCast<PacketSink> (serverApp.
Get (0))->GetTotalRx ();
241 double throughput = (rxBytes * 8) / (simulationTime * 1000000.0);
245 std::cout << mcs <<
"\t\t\t" << channelWidth <<
" MHz\t\t\t" << sgi <<
"\t\t\t" << throughput <<
" Mbit/s" << std::endl;
248 if (mcs == 0 && channelWidth == 20 && sgi == 0)
250 if (throughput < minExpectedThroughput)
252 NS_LOG_ERROR (
"Obtained throughput " << throughput <<
" is not expected!");
257 if (mcs == 9 && channelWidth == 160 && sgi == 1)
259 if (maxExpectedThroughput > 0 && throughput > maxExpectedThroughput)
261 NS_LOG_ERROR (
"Obtained throughput " << throughput <<
" is not expected!");
266 if (throughput > previous)
268 previous = throughput;
272 NS_LOG_ERROR (
"Obtained throughput " << throughput <<
" is not expected!");
276 if (throughput > prevThroughput [index])
278 prevThroughput [index] = throughput;
282 NS_LOG_ERROR (
"Obtained throughput " << throughput <<
" is not expected!");
holds a vector of ns3::NetDevice pointers
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
AttributeValue implementation for DataRate.
Ptr< Application > Get(uint32_t i) const
Get the Ptr<Application> stored in this container at a given index.
static YansWifiChannelHelper Default(void)
Create a channel helper in a default working state.
Create a client application which sends UDP packets carrying a 32bit sequence number and a 64 bit tim...
Make it easy to create and manage PHY objects for the YANS model.
Parse command-line arguments.
void Add(Vector v)
Add a position to the list of positions.
void Set(std::string path, const AttributeValue &value)
AttributeValue implementation for Boolean.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
void Stop(Time stop)
Arrange for all of the Applications in this container to Stop() at the Time given as a parameter.
helps to create WifiNetDevice objects
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
AttributeValue implementation for Address.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
AttributeValue implementation for Ssid.
The IEEE 802.11 SSID Information Element.
Create a server application which waits for input UDP packets and uses the information carried into t...
Smart pointer class similar to boost::intrusive_ptr.
static void PopulateRoutingTables(void)
Build a routing database and initialize the routing tables of the nodes in the simulation.
static void Stop(void)
Tell the Simulator the calling event should be the last one executed.
a polymophic address class
A helper to make it easier to instantiate an ns3::OnOffApplication on a set of nodes.
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Simulation virtual time values and global simulation resolution.
static void Run(void)
Run the simulation.
Hold variables of type string.
A helper to make it easier to instantiate an ns3::PacketSinkApplication on a set of nodes.
#define NS_LOG_ERROR(msg)
Use NS_LOG to output a message of level LOG_ERROR.
static Ipv4Address GetAny(void)
void Start(Time start)
Arrange for all of the Applications in this container to Start() at the Time given as a parameter.
Time Seconds(double value)
Construct a Time in the indicated unit.
static void Destroy(void)
Execute the events scheduled with ScheduleDestroy().
holds a vector of ns3::Application pointers.
AttributeValue implementation for Time.
keep track of a set of node pointers.
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
Hold an unsigned integer type.
manage and create wifi channel objects for the YANS model.
create MAC layers for a ns3::WifiNetDevice.
void SetDefault(std::string name, const AttributeValue &value)
aggregate IP/TCP/UDP functionality to existing Nodes.
Helper class used to assign positions and mobility models to nodes.