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wifi-simple-infra.cc
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1 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2009 The Boeing Company
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  */
19 
20 //
21 // This script configures two nodes on an 802.11b physical layer, with
22 // 802.11b NICs in infrastructure mode, and by default, the station sends
23 // one packet of 1000 (application) bytes to the access point. The
24 // physical layer is configured
25 // to receive at a fixed RSS (regardless of the distance and transmit
26 // power); therefore, changing position of the nodes has no effect.
27 //
28 // There are a number of command-line options available to control
29 // the default behavior. The list of available command-line options
30 // can be listed with the following command:
31 // ./waf --run "wifi-simple-infra --help"
32 //
33 // For instance, for this configuration, the physical layer will
34 // stop successfully receiving packets when rss drops below -97 dBm.
35 // To see this effect, try running:
36 //
37 // ./waf --run "wifi-simple-infra --rss=-97 --numPackets=20"
38 // ./waf --run "wifi-simple-infra --rss=-98 --numPackets=20"
39 // ./waf --run "wifi-simple-infra --rss=-99 --numPackets=20"
40 //
41 // Note that all ns-3 attributes (not just the ones exposed in the below
42 // script) can be changed at command line; see the documentation.
43 //
44 // This script can also be helpful to put the Wifi layer into verbose
45 // logging mode; this command will turn on all wifi logging:
46 //
47 // ./waf --run "wifi-simple-infra --verbose=1"
48 //
49 // When you are done, you will notice two pcap trace files in your directory.
50 // If you have tcpdump installed, you can try this:
51 //
52 // tcpdump -r wifi-simple-infra-0-0.pcap -nn -tt
53 //
54 
55 #include "ns3/core-module.h"
56 #include "ns3/network-module.h"
57 #include "ns3/mobility-module.h"
58 #include "ns3/config-store-module.h"
59 #include "ns3/wifi-module.h"
60 #include "ns3/internet-module.h"
61 
62 #include <iostream>
63 #include <fstream>
64 #include <vector>
65 #include <string>
66 
67 NS_LOG_COMPONENT_DEFINE ("WifiSimpleInfra");
68 
69 using namespace ns3;
70 
72 {
73  NS_LOG_UNCOND ("Received one packet!");
74 }
75 
76 static void GenerateTraffic (Ptr<Socket> socket, uint32_t pktSize,
77  uint32_t pktCount, Time pktInterval )
78 {
79  if (pktCount > 0)
80  {
81  socket->Send (Create<Packet> (pktSize));
82  Simulator::Schedule (pktInterval, &GenerateTraffic,
83  socket, pktSize,pktCount-1, pktInterval);
84  }
85  else
86  {
87  socket->Close ();
88  }
89 }
90 
91 
92 int main (int argc, char *argv[])
93 {
94  std::string phyMode ("DsssRate1Mbps");
95  double rss = -80; // -dBm
96  uint32_t packetSize = 1000; // bytes
97  uint32_t numPackets = 1;
98  double interval = 1.0; // seconds
99  bool verbose = false;
100 
101  CommandLine cmd;
102 
103  cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
104  cmd.AddValue ("rss", "received signal strength", rss);
105  cmd.AddValue ("packetSize", "size of application packet sent", packetSize);
106  cmd.AddValue ("numPackets", "number of packets generated", numPackets);
107  cmd.AddValue ("interval", "interval (seconds) between packets", interval);
108  cmd.AddValue ("verbose", "turn on all WifiNetDevice log components", verbose);
109 
110  cmd.Parse (argc, argv);
111  // Convert to time object
112  Time interPacketInterval = Seconds (interval);
113 
114  // disable fragmentation for frames below 2200 bytes
115  Config::SetDefault ("ns3::WifiRemoteStationManager::FragmentationThreshold", StringValue ("2200"));
116  // turn off RTS/CTS for frames below 2200 bytes
117  Config::SetDefault ("ns3::WifiRemoteStationManager::RtsCtsThreshold", StringValue ("2200"));
118  // Fix non-unicast data rate to be the same as that of unicast
119  Config::SetDefault ("ns3::WifiRemoteStationManager::NonUnicastMode",
120  StringValue (phyMode));
121 
122  NodeContainer c;
123  c.Create (2);
124 
125  // The below set of helpers will help us to put together the wifi NICs we want
126  WifiHelper wifi;
127  if (verbose)
128  {
129  wifi.EnableLogComponents (); // Turn on all Wifi logging
130  }
132 
134  // This is one parameter that matters when using FixedRssLossModel
135  // set it to zero; otherwise, gain will be added
136  wifiPhy.Set ("RxGain", DoubleValue (0) );
137  // ns-3 supports RadioTap and Prism tracing extensions for 802.11b
139 
140  YansWifiChannelHelper wifiChannel;
141  wifiChannel.SetPropagationDelay ("ns3::ConstantSpeedPropagationDelayModel");
142  // The below FixedRssLossModel will cause the rss to be fixed regardless
143  // of the distance between the two stations, and the transmit power
144  wifiChannel.AddPropagationLoss ("ns3::FixedRssLossModel","Rss",DoubleValue (rss));
145  wifiPhy.SetChannel (wifiChannel.Create ());
146 
147  // Add a non-QoS upper mac, and disable rate control
149  wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
150  "DataMode",StringValue (phyMode),
151  "ControlMode",StringValue (phyMode));
152 
153  // Setup the rest of the upper mac
154  Ssid ssid = Ssid ("wifi-default");
155  // setup sta.
156  wifiMac.SetType ("ns3::StaWifiMac",
157  "Ssid", SsidValue (ssid),
158  "ActiveProbing", BooleanValue (false));
159  NetDeviceContainer staDevice = wifi.Install (wifiPhy, wifiMac, c.Get (0));
160  NetDeviceContainer devices = staDevice;
161  // setup ap.
162  wifiMac.SetType ("ns3::ApWifiMac",
163  "Ssid", SsidValue (ssid));
164  NetDeviceContainer apDevice = wifi.Install (wifiPhy, wifiMac, c.Get (1));
165  devices.Add (apDevice);
166 
167  // Note that with FixedRssLossModel, the positions below are not
168  // used for received signal strength.
169  MobilityHelper mobility;
170  Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
171  positionAlloc->Add (Vector (0.0, 0.0, 0.0));
172  positionAlloc->Add (Vector (5.0, 0.0, 0.0));
173  mobility.SetPositionAllocator (positionAlloc);
174  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
175  mobility.Install (c);
176 
177  InternetStackHelper internet;
178  internet.Install (c);
179 
180  Ipv4AddressHelper ipv4;
181  NS_LOG_INFO ("Assign IP Addresses.");
182  ipv4.SetBase ("10.1.1.0", "255.255.255.0");
183  Ipv4InterfaceContainer i = ipv4.Assign (devices);
184 
185  TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
186  Ptr<Socket> recvSink = Socket::CreateSocket (c.Get (0), tid);
188  recvSink->Bind (local);
190 
191  Ptr<Socket> source = Socket::CreateSocket (c.Get (1), tid);
192  InetSocketAddress remote = InetSocketAddress (Ipv4Address ("255.255.255.255"), 80);
193  source->SetAllowBroadcast (true);
194  source->Connect (remote);
195 
196  // Tracing
197  wifiPhy.EnablePcap ("wifi-simple-infra", devices);
198 
199  // Output what we are doing
200  NS_LOG_UNCOND ("Testing " << numPackets << " packets sent with receiver rss " << rss );
201 
203  Seconds (1.0), &GenerateTraffic,
204  source, packetSize, numPackets, interPacketInterval);
205 
206  Simulator::Stop (Seconds (30.0));
207  Simulator::Run ();
209 
210  return 0;
211 }
212 
void AddPropagationLoss(std::string name, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:79
an Inet address class
static Ipv4Address GetAny(void)
Hold a bool native type.
Definition: boolean.h:38
tuple devices
Definition: first.py:32
holds a vector of std::pair of Ptr and interface index.
Ptr< YansWifiChannel > Create(void) const
void SetRemoteStationManager(std::string type, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
Definition: wifi-helper.cc:73
hold variables of type string
Definition: string.h:18
virtual bool SetAllowBroadcast(bool allowBroadcast)=0
Configure whether broadcast datagram transmissions are allowed.
Make it easy to create and manage PHY objects for the yans model.
virtual void SetType(std::string type, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
int main(int argc, char *argv[])
static void Run(void)
Run the simulation until one of:
Definition: simulator.cc:157
static void GenerateTraffic(Ptr< Socket > socket, uint32_t pktSize, uint32_t pktCount, Time pktInterval)
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:170
void SetPcapDataLinkType(enum SupportedPcapDataLinkTypes dlt)
Set the data link type of PCAP traces to be used.
aggregate IP/TCP/UDP functionality to existing Nodes.
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:223
void Set(std::string name, const AttributeValue &v)
static YansWifiPhyHelper Default(void)
Create a phy helper in a default working state.
static EventId Schedule(Time const &time, MEM mem_ptr, OBJ obj)
Schedule an event to expire at the relative time "time" is reached.
Definition: simulator.h:825
helps to create WifiNetDevice objects
Definition: wifi-helper.h:88
a 3d vector
Definition: vector.h:31
Include Radiotap link layer information.
virtual NetDeviceContainer Install(const WifiPhyHelper &phy, const WifiMacHelper &mac, NodeContainer c) const
Definition: wifi-helper.cc:102
void SetChannel(Ptr< YansWifiChannel > channel)
void Install(Ptr< Node > node) const
"Layout" a single node according to the current position allocator type.
void Add(NetDeviceContainer other)
Append the contents of another NetDeviceContainer to the end of this container.
holds a vector of ns3::NetDevice pointers
virtual void SetStandard(enum WifiPhyStandard standard)
Definition: wifi-helper.cc:96
Callback< R > MakeCallback(R(T::*memPtr)(void), OBJ objPtr)
Definition: callback.h:1242
static NqosWifiMacHelper Default(void)
Create a mac helper in a default working state.
void SetRecvCallback(Callback< void, Ptr< Socket > >)
Notify application when new data is available to be read.
Definition: socket.cc:127
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:70
static void ScheduleWithContext(uint32_t context, Time const &time, MEM mem_ptr, OBJ obj)
Schedule an event with the given context.
Definition: simulator.h:905
create non QoS-enabled MAC layers for a ns3::WifiNetDevice.
Parse command-line arguments.
Definition: command-line.h:177
static void Destroy(void)
Every event scheduled by the Simulator::insertAtDestroy method is invoked.
Definition: simulator.cc:121
virtual int Connect(const Address &address)=0
Initiate a connection to a remote host.
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:667
virtual int Bind(const Address &address)=0
Allocate a local endpoint for this socket.
keep track of a set of node pointers.
DSSS PHY (Clause 15) and HR/DSSS PHY (Clause 18)
void SetMobilityModel(std::string type, std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue(), std::string n8="", const AttributeValue &v8=EmptyAttributeValue(), std::string n9="", const AttributeValue &v9=EmptyAttributeValue())
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
#define NS_LOG_UNCOND(msg)
Output the requested message unconditionaly.
manage and create wifi channel objects for the yans model.
The IEEE 802.11 SSID Information Element.
Definition: ssid.h:35
Helper class used to assign positions and mobility models to nodes.
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:38
static void EnableLogComponents(void)
Helper to enable all WifiNetDevice log components with one statement.
Definition: wifi-helper.cc:142
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
uint32_t GetId(void) const
Definition: node.cc:106
virtual Ptr< Node > GetNode(void) const =0
Return the node this socket is associated with.
void AddValue(const std::string &name, const std::string &help, T &value)
Add a program argument, assigning to POD.
Definition: command-line.h:435
static void Stop(void)
If an event invokes this method, it will be the last event scheduled by the Simulator::run method bef...
Definition: simulator.cc:165
Ptr< Node > Get(uint32_t i) const
Get the Ptr stored in this container at a given index.
hold objects of type ns3::Ssid
void Parse(int argc, char *argv[])
Parse the program arguments.
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
void SetPropagationDelay(std::string name, std::string n0="", const AttributeValue &v0=EmptyAttributeValue(), std::string n1="", const AttributeValue &v1=EmptyAttributeValue(), std::string n2="", const AttributeValue &v2=EmptyAttributeValue(), std::string n3="", const AttributeValue &v3=EmptyAttributeValue(), std::string n4="", const AttributeValue &v4=EmptyAttributeValue(), std::string n5="", const AttributeValue &v5=EmptyAttributeValue(), std::string n6="", const AttributeValue &v6=EmptyAttributeValue(), std::string n7="", const AttributeValue &v7=EmptyAttributeValue())
void EnablePcap(std::string prefix, Ptr< NetDevice > nd, bool promiscuous=false, bool explicitFilename=false)
Enable pcap output the indicated net device.
virtual int Send(Ptr< Packet > p, uint32_t flags)=0
Send data (or dummy data) to the remote host.
void SetPositionAllocator(Ptr< PositionAllocator > allocator)
Set the position allocator which will be used to allocate the initial position of every node initiali...
virtual int Close(void)=0
Close a socket.
Hold a floating point type.
Definition: double.h:41
a unique identifier for an interface.
Definition: type-id.h:49
void ReceivePacket(Ptr< Socket > socket)
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="0.0.0.1")
Set the base network number, network mask and base address.
bool verbose
static TypeId LookupByName(std::string name)
Definition: type-id.cc:535