245 lines
8.8 KiB
C++
245 lines
8.8 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2009 University of Washington
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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//
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// This program configures a grid (default 5x5) of nodes on an
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// 802.11b physical layer, with
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// 802.11b NICs in adhoc mode, and by default, sends one packet of 1000
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// (application) bytes to node 1.
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//
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// The default layout is like this, on a 2-D grid.
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//
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// n20 n21 n22 n23 n24
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// n15 n16 n17 n18 n19
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// n10 n11 n12 n13 n14
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// n5 n6 n7 n8 n9
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// n0 n1 n2 n3 n4
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//
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// the layout is affected by the parameters given to GridPositionAllocator;
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// by default, GridWidth is 5 and numNodes is 25..
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//
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// There are a number of command-line options available to control
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// the default behavior. The list of available command-line options
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// can be listed with the following command:
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// ./waf --run "wifi-simple-adhoc-grid --help"
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//
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// Note that all ns-3 attributes (not just the ones exposed in the below
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// script) can be changed at command line; see the ns-3 documentation.
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//
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// For instance, for this configuration, the physical layer will
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// stop successfully receiving packets when distance increases beyond
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// the default of 500m.
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// To see this effect, try running:
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//
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// ./waf --run "wifi-simple-adhoc-grid --distance=500"
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// ./waf --run "wifi-simple-adhoc-grid --distance=1000"
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// ./waf --run "wifi-simple-adhoc-grid --distance=1500"
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//
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// The source node and sink node can be changed like this:
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//
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// ./waf --run "wifi-simple-adhoc-grid --sourceNode=20 --sinkNode=10"
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//
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// This script can also be helpful to put the Wifi layer into verbose
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// logging mode; this command will turn on all wifi logging:
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//
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// ./waf --run "wifi-simple-adhoc-grid --verbose=1"
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//
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// By default, trace file writing is off-- to enable it, try:
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// ./waf --run "wifi-simple-adhoc-grid --tracing=1"
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//
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// When you are done tracing, you will notice many pcap trace files
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// in your directory. If you have tcpdump installed, you can try this:
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//
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// tcpdump -r wifi-simple-adhoc-grid-0-0.pcap -nn -tt
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//
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#include "ns3/command-line.h"
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#include "ns3/config.h"
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#include "ns3/uinteger.h"
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#include "ns3/double.h"
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#include "ns3/string.h"
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#include "ns3/log.h"
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#include "ns3/yans-wifi-helper.h"
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#include "ns3/mobility-helper.h"
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#include "ns3/ipv4-address-helper.h"
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#include "ns3/yans-wifi-channel.h"
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#include "ns3/mobility-model.h"
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#include "ns3/olsr-helper.h"
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#include "ns3/ipv4-static-routing-helper.h"
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#include "ns3/ipv4-list-routing-helper.h"
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#include "ns3/internet-stack-helper.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("WifiSimpleAdhocGrid");
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void ReceivePacket (Ptr<Socket> socket)
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{
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while (socket->Recv ())
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{
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NS_LOG_UNCOND ("Received one packet!");
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}
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}
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static void GenerateTraffic (Ptr<Socket> socket, uint32_t pktSize,
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uint32_t pktCount, Time pktInterval )
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{
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if (pktCount > 0)
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{
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socket->Send (Create<Packet> (pktSize));
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Simulator::Schedule (pktInterval, &GenerateTraffic,
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socket, pktSize,pktCount - 1, pktInterval);
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}
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else
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{
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socket->Close ();
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}
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}
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int main (int argc, char *argv[])
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{
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std::string phyMode ("DsssRate1Mbps");
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double distance = 500; // m
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uint32_t packetSize = 1000; // bytes
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uint32_t numPackets = 1;
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uint32_t numNodes = 25; // by default, 5x5
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uint32_t sinkNode = 0;
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uint32_t sourceNode = 24;
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double interval = 1.0; // seconds
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bool verbose = false;
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bool tracing = false;
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CommandLine cmd (__FILE__);
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cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
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cmd.AddValue ("distance", "distance (m)", distance);
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cmd.AddValue ("packetSize", "size of application packet sent", packetSize);
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cmd.AddValue ("numPackets", "number of packets generated", numPackets);
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cmd.AddValue ("interval", "interval (seconds) between packets", interval);
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cmd.AddValue ("verbose", "turn on all WifiNetDevice log components", verbose);
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cmd.AddValue ("tracing", "turn on ascii and pcap tracing", tracing);
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cmd.AddValue ("numNodes", "number of nodes", numNodes);
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cmd.AddValue ("sinkNode", "Receiver node number", sinkNode);
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cmd.AddValue ("sourceNode", "Sender node number", sourceNode);
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cmd.Parse (argc, argv);
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// Convert to time object
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Time interPacketInterval = Seconds (interval);
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// Fix non-unicast data rate to be the same as that of unicast
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Config::SetDefault ("ns3::WifiRemoteStationManager::NonUnicastMode",
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StringValue (phyMode));
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NodeContainer c;
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c.Create (numNodes);
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// The below set of helpers will help us to put together the wifi NICs we want
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WifiHelper wifi;
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if (verbose)
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{
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wifi.EnableLogComponents (); // Turn on all Wifi logging
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}
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YansWifiPhyHelper wifiPhy = YansWifiPhyHelper::Default ();
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// set it to zero; otherwise, gain will be added
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wifiPhy.Set ("RxGain", DoubleValue (-10) );
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// ns-3 supports RadioTap and Prism tracing extensions for 802.11b
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wifiPhy.SetPcapDataLinkType (WifiPhyHelper::DLT_IEEE802_11_RADIO);
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YansWifiChannelHelper wifiChannel;
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wifiChannel.SetPropagationDelay ("ns3::ConstantSpeedPropagationDelayModel");
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wifiChannel.AddPropagationLoss ("ns3::FriisPropagationLossModel");
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wifiPhy.SetChannel (wifiChannel.Create ());
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// Add an upper mac and disable rate control
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WifiMacHelper wifiMac;
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wifi.SetStandard (WIFI_PHY_STANDARD_80211b);
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wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
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"DataMode",StringValue (phyMode),
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"ControlMode",StringValue (phyMode));
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// Set it to adhoc mode
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wifiMac.SetType ("ns3::AdhocWifiMac");
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NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, c);
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MobilityHelper mobility;
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mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
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"MinX", DoubleValue (0.0),
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"MinY", DoubleValue (0.0),
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"DeltaX", DoubleValue (distance),
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"DeltaY", DoubleValue (distance),
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"GridWidth", UintegerValue (5),
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"LayoutType", StringValue ("RowFirst"));
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mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
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mobility.Install (c);
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// Enable OLSR
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OlsrHelper olsr;
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Ipv4StaticRoutingHelper staticRouting;
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Ipv4ListRoutingHelper list;
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list.Add (staticRouting, 0);
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list.Add (olsr, 10);
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InternetStackHelper internet;
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internet.SetRoutingHelper (list); // has effect on the next Install ()
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internet.Install (c);
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Ipv4AddressHelper ipv4;
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NS_LOG_INFO ("Assign IP Addresses.");
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ipv4.SetBase ("10.1.1.0", "255.255.255.0");
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Ipv4InterfaceContainer i = ipv4.Assign (devices);
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TypeId tid = TypeId::LookupByName ("ns3::UdpSocketFactory");
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Ptr<Socket> recvSink = Socket::CreateSocket (c.Get (sinkNode), tid);
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InetSocketAddress local = InetSocketAddress (Ipv4Address::GetAny (), 80);
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recvSink->Bind (local);
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recvSink->SetRecvCallback (MakeCallback (&ReceivePacket));
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Ptr<Socket> source = Socket::CreateSocket (c.Get (sourceNode), tid);
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InetSocketAddress remote = InetSocketAddress (i.GetAddress (sinkNode, 0), 80);
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source->Connect (remote);
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if (tracing == true)
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{
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AsciiTraceHelper ascii;
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wifiPhy.EnableAsciiAll (ascii.CreateFileStream ("wifi-simple-adhoc-grid.tr"));
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wifiPhy.EnablePcap ("wifi-simple-adhoc-grid", devices);
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// Trace routing tables
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Ptr<OutputStreamWrapper> routingStream = Create<OutputStreamWrapper> ("wifi-simple-adhoc-grid.routes", std::ios::out);
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olsr.PrintRoutingTableAllEvery (Seconds (2), routingStream);
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Ptr<OutputStreamWrapper> neighborStream = Create<OutputStreamWrapper> ("wifi-simple-adhoc-grid.neighbors", std::ios::out);
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olsr.PrintNeighborCacheAllEvery (Seconds (2), neighborStream);
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// To do-- enable an IP-level trace that shows forwarding events only
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}
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// Give OLSR time to converge-- 30 seconds perhaps
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Simulator::Schedule (Seconds (30.0), &GenerateTraffic,
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source, packetSize, numPackets, interPacketInterval);
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// Output what we are doing
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NS_LOG_UNCOND ("Testing from node " << sourceNode << " to " << sinkNode << " with grid distance " << distance);
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Simulator::Stop (Seconds (33.0));
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Simulator::Run ();
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Simulator::Destroy ();
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return 0;
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}
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