0946a77009
This change reorganises the Wi-Fi MAC high classes in attempt to reduce duplication of functionality that is required for more than one of the MAC high models. A new class called RegularWifiMac has been created. This derives from the abstract WifiMac, and is parent of AdhocWifiMac, StaWifiMac, ApWifiMac, and MeshWifiInterfaceMac. The QoS and non-QoS class variants are no longer, with a RegularWifiMac attribute "QosSupported" allowing selection between these two modes of operation. QosWifiMacHelper and NqosWifiMacHelper continue to work as previously. Updates to some regression traces are necessary because the reorganisation has led to random number streams being initialised in slightly different orders and thus over-the-air timing changing.
150 lines
5.0 KiB
C++
150 lines
5.0 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2009 MIRKO BANCHI
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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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* Author: Mirko Banchi <mk.banchi@gmail.com>
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*/
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#include "ns3/core-module.h"
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#include "ns3/simulator-module.h"
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#include "ns3/node-module.h"
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#include "ns3/helper-module.h"
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#include "ns3/wifi-module.h"
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#include "ns3/mobility-module.h"
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#include "ns3/ipv4-global-routing-helper.h"
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//This is a simple example in order to show how 802.11n frame aggregation feature (A-MSDU) works.
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//
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//Network topology:
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//
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// Wifi 192.168.1.0
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//
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// AP
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// * * *
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// | | |
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// n1 n2 n3
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//
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//Packets in this simulation aren't marked with a QosTag so they are considered
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//belonging to BestEffort Access Class (AC_BE).
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("SimpleWifiFrameAggregation");
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int main (int argc, char *argv[])
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{
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//LogComponentEnable ("EdcaTxopN", LOG_LEVEL_DEBUG);
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LogComponentEnable ("MsduAggregator", LOG_LEVEL_INFO);
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LogComponentEnable ("UdpEchoClientApplication", LOG_LEVEL_INFO);
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LogComponentEnable ("UdpEchoServerApplication", LOG_LEVEL_INFO);
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uint32_t nWifi = 1;
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CommandLine cmd;
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cmd.AddValue ("nWifi", "Number of wifi STA devices", nWifi);
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cmd.Parse (argc,argv);
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NodeContainer wifiNodes;
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wifiNodes.Create (2);
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NodeContainer wifiApNode;
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wifiApNode.Create (1);
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YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
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YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
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phy.SetChannel (channel.Create ());
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WifiHelper wifi = WifiHelper::Default ();
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QosWifiMacHelper mac = QosWifiMacHelper::Default ();
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wifi.SetRemoteStationManager ("ns3::AarfWifiManager", "FragmentationThreshold", UintegerValue (2500));
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Ssid ssid = Ssid ("ns-3-802.11n");
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mac.SetType ("ns3::StaWifiMac",
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"Ssid", SsidValue (ssid),
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"ActiveProbing", BooleanValue (false));
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mac.SetMsduAggregatorForAc (AC_BE, "ns3::MsduStandardAggregator",
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"MaxAmsduSize", UintegerValue (3839));
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NetDeviceContainer staDevices;
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staDevices = wifi.Install (phy, mac, wifiNodes);
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mac.SetType ("ns3::ApWifiMac",
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"Ssid", SsidValue (ssid));
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mac.SetMsduAggregatorForAc (AC_BE, "ns3::MsduStandardAggregator",
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"MaxAmsduSize", UintegerValue (7935));
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NetDeviceContainer apDevice;
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apDevice = wifi.Install (phy, mac, wifiApNode);
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/* Setting mobility model */
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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 (5.0),
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"DeltaY", DoubleValue (10.0),
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"GridWidth", UintegerValue (3),
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"LayoutType", StringValue ("RowFirst"));
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mobility.SetMobilityModel ("ns3::RandomWalk2dMobilityModel",
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"Bounds", RectangleValue (Rectangle (-50, 50, -50, 50)));
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mobility.Install (wifiNodes);
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mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
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mobility.Install (wifiApNode);
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/* Internet stack*/
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InternetStackHelper stack;
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stack.Install (wifiApNode);
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stack.Install (wifiNodes);
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Ipv4AddressHelper address;
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address.SetBase ("192.168.1.0", "255.255.255.0");
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Ipv4InterfaceContainer wifiNodesInterfaces;
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Ipv4InterfaceContainer apNodeInterface;
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wifiNodesInterfaces = address.Assign (staDevices);
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apNodeInterface = address.Assign (apDevice);
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/* Setting applications */
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UdpEchoServerHelper echoServer (9);
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ApplicationContainer serverApps = echoServer.Install (wifiNodes.Get (1));
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serverApps.Start (Seconds (1.0));
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serverApps.Stop (Seconds (10.0));
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UdpEchoClientHelper echoClient (wifiNodesInterfaces.GetAddress (1), 9);
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echoClient.SetAttribute ("MaxPackets", UintegerValue (3));
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echoClient.SetAttribute ("Interval", TimeValue (Seconds (0.000001)));
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echoClient.SetAttribute ("PacketSize", UintegerValue (1500));
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ApplicationContainer clientApps =
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echoClient.Install (wifiNodes.Get (0));
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clientApps.Start (Seconds (2.0));
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clientApps.Stop (Seconds (10.0));
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Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
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Simulator::Stop (Seconds (10.0));
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phy.EnablePcap ("test-802.11n",
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wifiNodes.Get (nWifi - 1)->GetId (), 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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