A Discrete-Event Network Simulator
API
wifi-simple-adhoc.cc
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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;
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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.
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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
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18 */
19
20// This script configures two nodes on an 802.11b physical layer, with
21// 802.11b NICs in adhoc mode, and by default, sends one packet of 1000
22// (application) bytes to the other node. The physical layer is configured
23// to receive at a fixed RSS (regardless of the distance and transmit
24// power); therefore, changing position of the nodes has no effect.
25//
26// There are a number of command-line options available to control
27// the default behavior. The list of available command-line options
28// can be listed with the following command:
29// ./ns3 run "wifi-simple-adhoc --help"
30//
31// For instance, for this configuration, the physical layer will
32// stop successfully receiving packets when rss drops below -97 dBm.
33// To see this effect, try running:
34//
35// ./ns3 run "wifi-simple-adhoc --rss=-97 --numPackets=20"
36// ./ns3 run "wifi-simple-adhoc --rss=-98 --numPackets=20"
37// ./ns3 run "wifi-simple-adhoc --rss=-99 --numPackets=20"
38//
39// Note that all ns-3 attributes (not just the ones exposed in the below
40// script) can be changed at command line; see the documentation.
41//
42// This script can also be helpful to put the Wifi layer into verbose
43// logging mode; this command will turn on all wifi logging:
44//
45// ./ns3 run "wifi-simple-adhoc --verbose=1"
46//
47// When you are done, you will notice two pcap trace files in your directory.
48// If you have tcpdump installed, you can try this:
49//
50// tcpdump -r wifi-simple-adhoc-0-0.pcap -nn -tt
51//
52
53#include "ns3/command-line.h"
54#include "ns3/config.h"
55#include "ns3/double.h"
56#include "ns3/string.h"
57#include "ns3/log.h"
58#include "ns3/yans-wifi-helper.h"
59#include "ns3/mobility-helper.h"
60#include "ns3/ipv4-address-helper.h"
61#include "ns3/yans-wifi-channel.h"
62#include "ns3/mobility-model.h"
63#include "ns3/internet-stack-helper.h"
64
65using namespace ns3;
66
67NS_LOG_COMPONENT_DEFINE ("WifiSimpleAdhoc");
68
70{
71 while (socket->Recv ())
72 {
73 NS_LOG_UNCOND ("Received one packet!");
74 }
75}
76
78 uint32_t pktCount, Time pktInterval )
79{
80 if (pktCount > 0)
81 {
82 socket->Send (Create<Packet> (pktSize));
83 Simulator::Schedule (pktInterval, &GenerateTraffic,
84 socket, pktSize,pktCount - 1, pktInterval);
85 }
86 else
87 {
88 socket->Close ();
89 }
90}
91
92int 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 (__FILE__);
102 cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
103 cmd.AddValue ("rss", "received signal strength", rss);
104 cmd.AddValue ("packetSize", "size of application packet sent", packetSize);
105 cmd.AddValue ("numPackets", "number of packets generated", numPackets);
106 cmd.AddValue ("interval", "interval (seconds) between packets", interval);
107 cmd.AddValue ("verbose", "turn on all WifiNetDevice log components", verbose);
108 cmd.Parse (argc, argv);
109 // Convert to time object
110 Time interPacketInterval = Seconds (interval);
111
112 // Fix non-unicast data rate to be the same as that of unicast
113 Config::SetDefault ("ns3::WifiRemoteStationManager::NonUnicastMode",
114 StringValue (phyMode));
115
117 c.Create (2);
118
119 // The below set of helpers will help us to put together the wifi NICs we want
121 if (verbose)
122 {
123 wifi.EnableLogComponents (); // Turn on all Wifi logging
124 }
125 wifi.SetStandard (WIFI_STANDARD_80211b);
126
127 YansWifiPhyHelper wifiPhy;
128 // This is one parameter that matters when using FixedRssLossModel
129 // set it to zero; otherwise, gain will be added
130 wifiPhy.Set ("RxGain", DoubleValue (0) );
131 // ns-3 supports RadioTap and Prism tracing extensions for 802.11b
132 wifiPhy.SetPcapDataLinkType (WifiPhyHelper::DLT_IEEE802_11_RADIO);
133
134 YansWifiChannelHelper wifiChannel;
135 wifiChannel.SetPropagationDelay ("ns3::ConstantSpeedPropagationDelayModel");
136 // The below FixedRssLossModel will cause the rss to be fixed regardless
137 // of the distance between the two stations, and the transmit power
138 wifiChannel.AddPropagationLoss ("ns3::FixedRssLossModel","Rss",DoubleValue (rss));
139 wifiPhy.SetChannel (wifiChannel.Create ());
140
141 // Add a mac and disable rate control
142 WifiMacHelper wifiMac;
143 wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
144 "DataMode",StringValue (phyMode),
145 "ControlMode",StringValue (phyMode));
146 // Set it to adhoc mode
147 wifiMac.SetType ("ns3::AdhocWifiMac");
148 NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, c);
149
150 // Note that with FixedRssLossModel, the positions below are not
151 // used for received signal strength.
153 Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
154 positionAlloc->Add (Vector (0.0, 0.0, 0.0));
155 positionAlloc->Add (Vector (5.0, 0.0, 0.0));
156 mobility.SetPositionAllocator (positionAlloc);
157 mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
158 mobility.Install (c);
159
160 InternetStackHelper internet;
161 internet.Install (c);
162
164 NS_LOG_INFO ("Assign IP Addresses.");
165 ipv4.SetBase ("10.1.1.0", "255.255.255.0");
167
168 TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
169 Ptr<Socket> recvSink = Socket::CreateSocket (c.Get (0), tid);
170 InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 80);
171 recvSink->Bind (local);
173
174 Ptr<Socket> source = Socket::CreateSocket (c.Get (1), tid);
175 InetSocketAddress remote = InetSocketAddress (Ipv4Address ("255.255.255.255"), 80);
176 source->SetAllowBroadcast (true);
177 source->Connect (remote);
178
179 // Tracing
180 wifiPhy.EnablePcap ("wifi-simple-adhoc", devices);
181
182 // Output what we are doing
183 NS_LOG_UNCOND ("Testing " << numPackets << " packets sent with receiver rss " << rss );
184
185 Simulator::ScheduleWithContext (source->GetNode ()->GetId (),
186 Seconds (1.0), &GenerateTraffic,
187 source, packetSize, numPackets, interPacketInterval);
188
189 Simulator::Run ();
190 Simulator::Destroy ();
191
192 return 0;
193}
Parse command-line arguments.
Definition: command-line.h:229
This class can be used to hold variables of floating point type such as 'double' or 'float'.
Definition: double.h:41
an Inet address class
aggregate IP/TCP/UDP functionality to existing Nodes.
void Install(std::string nodeName) const
Aggregate implementations of the ns3::Ipv4, ns3::Ipv6, ns3::Udp, and ns3::Tcp classes onto the provid...
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
void SetBase(Ipv4Address network, Ipv4Mask mask, Ipv4Address base="0.0.0.1")
Set the base network number, network mask and base address.
Ipv4InterfaceContainer Assign(const NetDeviceContainer &c)
Assign IP addresses to the net devices specified in the container based on the current network prefix...
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:41
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Helper class used to assign positions and mobility models to nodes.
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.
uint32_t GetId(void) const
Definition: node.cc:109
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.
virtual bool SetAllowBroadcast(bool allowBroadcast)=0
Configure whether broadcast datagram transmissions are allowed.
virtual Ptr< Node > GetNode(void) const =0
Return the node this socket is associated with.
virtual int Connect(const Address &address)=0
Initiate a connection to a remote host.
virtual int Close(void)=0
Close a socket.
void SetRecvCallback(Callback< void, Ptr< Socket > > receivedData)
Notify application when new data is available to be read.
Definition: socket.cc:128
virtual Ptr< Packet > Recv(uint32_t maxSize, uint32_t flags)=0
Read data from the socket.
virtual int Bind(const Address &address)=0
Allocate a local endpoint for this socket.
Hold variables of type string.
Definition: string.h:41
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:103
a unique identifier for an interface.
Definition: type-id.h:59
Vector3D Vector
Vector alias typedef for compatibility with mobility models.
Definition: vector.h:324
helps to create WifiNetDevice objects
Definition: wifi-helper.h:323
create MAC layers for a ns3::WifiNetDevice.
void SetType(std::string type, Args &&... args)
void SetPcapDataLinkType(SupportedPcapDataLinkTypes dlt)
Set the data link type of PCAP traces to be used.
Definition: wifi-helper.cc:574
void Set(std::string name, const AttributeValue &v)
Definition: wifi-helper.cc:141
manage and create wifi channel objects for the YANS model.
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())
Ptr< YansWifiChannel > Create(void) const
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())
Make it easy to create and manage PHY objects for the YANS model.
void SetChannel(Ptr< YansWifiChannel > channel)
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:849
#define NS_LOG_UNCOND(msg)
Output the requested message unconditionally.
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
#define NS_LOG_INFO(msg)
Use NS_LOG to output a message of level LOG_INFO.
Definition: log.h:281
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1244
@ WIFI_STANDARD_80211b
devices
Definition: first.py:39
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Ts... > MakeCallback(R(T::*memPtr)(Ts...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Definition: callback.h:1648
cmd
Definition: second.py:35
wifi
Definition: third.py:99
mobility
Definition: third.py:107
bool verbose
uint32_t pktSize
packet size used for the simulation (in bytes)
Definition: wifi-bianchi.cc:89
static const uint32_t packetSize
Pcket size generated at the AP.
void ReceivePacket(Ptr< Socket > socket)
static void GenerateTraffic(Ptr< Socket > socket, uint32_t pktSize, uint32_t pktCount, Time pktInterval)