275 lines
9.5 KiB
C++
275 lines
9.5 KiB
C++
/*
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* Copyright (c) 2017
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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: Sebastien Deronne <sebastien.deronne@gmail.com>
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*/
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#include "ns3/boolean.h"
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#include "ns3/command-line.h"
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#include "ns3/config.h"
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#include "ns3/enum.h"
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#include "ns3/internet-stack-helper.h"
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#include "ns3/ipv4-address-helper.h"
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#include "ns3/ipv4-global-routing-helper.h"
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#include "ns3/log.h"
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#include "ns3/mobility-helper.h"
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#include "ns3/packet-sink-helper.h"
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#include "ns3/ssid.h"
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#include "ns3/tuple.h"
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#include "ns3/udp-client-server-helper.h"
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#include "ns3/udp-server.h"
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#include "ns3/uinteger.h"
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#include "ns3/yans-wifi-channel.h"
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#include "ns3/yans-wifi-helper.h"
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// This is an example to show how to configure an IEEE 802.11 Wi-Fi
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// network where the AP and the station use different 802.11 standards.
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//
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// It outputs the throughput for a given configuration: user can specify
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// the 802.11 versions for the AP and the station as well as their rate
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// adaptation algorithms. It also allows to decide whether the station,
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// the AP or both has/have traffic to send.
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//
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// Example for an IEEE 802.11ac station sending traffic to an 802.11a AP using Ideal rate adaptation
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// algorithm:
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// ./ns3 run "wifi-backward-compatibility --apVersion=80211a --staVersion=80211ac --staRaa=Ideal"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE("wifi-backward-compatibility");
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/**
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* Convert a string (e.g., "80211a") to a pair {WifiStandard, WifiPhyBand}
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*
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* \param version The WiFi standard version.
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* \return a pair of WifiStandard, WifiPhyBand
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*/
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std::pair<WifiStandard, WifiPhyBand>
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ConvertStringToStandardAndBand(std::string version)
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{
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WifiStandard standard = WIFI_STANDARD_80211a;
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WifiPhyBand band = WIFI_PHY_BAND_5GHZ;
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if (version == "80211a")
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{
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standard = WIFI_STANDARD_80211a;
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band = WIFI_PHY_BAND_5GHZ;
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}
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else if (version == "80211b")
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{
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standard = WIFI_STANDARD_80211b;
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band = WIFI_PHY_BAND_2_4GHZ;
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}
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else if (version == "80211g")
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{
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standard = WIFI_STANDARD_80211g;
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band = WIFI_PHY_BAND_2_4GHZ;
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}
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else if (version == "80211p")
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{
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standard = WIFI_STANDARD_80211p;
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band = WIFI_PHY_BAND_5GHZ;
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}
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else if (version == "80211n_2_4GHZ")
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{
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standard = WIFI_STANDARD_80211n;
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band = WIFI_PHY_BAND_2_4GHZ;
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}
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else if (version == "80211n_5GHZ")
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{
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standard = WIFI_STANDARD_80211n;
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band = WIFI_PHY_BAND_5GHZ;
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}
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else if (version == "80211ac")
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{
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standard = WIFI_STANDARD_80211ac;
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band = WIFI_PHY_BAND_5GHZ;
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}
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else if (version == "80211ax_2_4GHZ")
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{
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standard = WIFI_STANDARD_80211ax;
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band = WIFI_PHY_BAND_2_4GHZ;
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}
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else if (version == "80211ax_5GHZ")
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{
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standard = WIFI_STANDARD_80211ax;
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band = WIFI_PHY_BAND_5GHZ;
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}
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return {standard, band};
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}
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int
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main(int argc, char* argv[])
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{
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uint32_t payloadSize{1472}; // bytes
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Time simulationTime{"10s"};
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std::string apVersion{"80211a"};
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std::string staVersion{"80211n_5GHZ"};
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std::string apRaa{"Minstrel"};
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std::string staRaa{"MinstrelHt"};
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bool apHasTraffic{false};
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bool staHasTraffic{true};
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CommandLine cmd(__FILE__);
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cmd.AddValue("simulationTime", "Simulation time", simulationTime);
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cmd.AddValue("apVersion",
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"The standard version used by the AP: 80211a, 80211b, 80211g, 80211p, "
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"80211n_2_4GHZ, 80211n_5GHZ, 80211ac, 80211ax_2_4GHZ or 80211ax_5GHZ",
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apVersion);
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cmd.AddValue("staVersion",
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"The standard version used by the station: 80211a, 80211b, 80211g, 80211_10MHZ, "
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"80211_5MHZ, 80211n_2_4GHZ, 80211n_5GHZ, 80211ac, 80211ax_2_4GHZ or 80211ax_5GHZ",
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staVersion);
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cmd.AddValue("apRaa", "Rate adaptation algorithm used by the AP", apRaa);
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cmd.AddValue("staRaa", "Rate adaptation algorithm used by the station", staRaa);
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cmd.AddValue("apHasTraffic", "Enable/disable traffic on the AP", apHasTraffic);
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cmd.AddValue("staHasTraffic", "Enable/disable traffic on the station", staHasTraffic);
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cmd.Parse(argc, argv);
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NodeContainer wifiStaNode;
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wifiStaNode.Create(1);
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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;
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phy.SetChannel(channel.Create());
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WifiMacHelper mac;
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WifiHelper wifi;
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Ssid ssid = Ssid("ns3");
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TupleValue<UintegerValue, UintegerValue, EnumValue<WifiPhyBand>, UintegerValue> channelValue;
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const auto& [staStandard, staBand] = ConvertStringToStandardAndBand(staVersion);
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wifi.SetStandard(staStandard);
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wifi.SetRemoteStationManager("ns3::" + staRaa + "WifiManager");
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mac.SetType("ns3::StaWifiMac", "QosSupported", BooleanValue(true), "Ssid", SsidValue(ssid));
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// Workaround needed as long as we do not fully support channel bonding
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uint16_t width = (staVersion == "80211ac" ? 20 : 0);
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channelValue.Set(WifiPhy::ChannelTuple{0, width, staBand, 0});
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phy.Set("ChannelSettings", channelValue);
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NetDeviceContainer staDevice;
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staDevice = wifi.Install(phy, mac, wifiStaNode);
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const auto& [apStandard, apBand] = ConvertStringToStandardAndBand(apVersion);
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wifi.SetStandard(apStandard);
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wifi.SetRemoteStationManager("ns3::" + apRaa + "WifiManager");
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mac.SetType("ns3::ApWifiMac", "QosSupported", BooleanValue(true), "Ssid", SsidValue(ssid));
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// Workaround needed as long as we do not fully support channel bonding
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width = (apVersion == "80211ac" ? 20 : 0);
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channelValue.Set(WifiPhy::ChannelTuple{0, width, apBand, 0});
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phy.Set("ChannelSettings", channelValue);
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NetDeviceContainer apDevice;
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apDevice = wifi.Install(phy, mac, wifiApNode);
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MobilityHelper mobility;
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Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator>();
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positionAlloc->Add(Vector(0.0, 0.0, 0.0));
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positionAlloc->Add(Vector(5.0, 0.0, 0.0));
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mobility.SetPositionAllocator(positionAlloc);
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mobility.SetMobilityModel("ns3::ConstantPositionMobilityModel");
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mobility.Install(wifiApNode);
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mobility.Install(wifiStaNode);
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InternetStackHelper stack;
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stack.Install(wifiApNode);
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stack.Install(wifiStaNode);
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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 staNodeInterface;
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Ipv4InterfaceContainer apNodeInterface;
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staNodeInterface = address.Assign(staDevice);
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apNodeInterface = address.Assign(apDevice);
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UdpServerHelper apServer(9);
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ApplicationContainer apServerApp = apServer.Install(wifiApNode.Get(0));
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apServerApp.Start(Seconds(0.0));
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apServerApp.Stop(simulationTime + Seconds(1.0));
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UdpServerHelper staServer(5001);
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ApplicationContainer staServerApp = staServer.Install(wifiStaNode.Get(0));
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staServerApp.Start(Seconds(0.0));
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staServerApp.Stop(simulationTime + Seconds(1.0));
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if (apHasTraffic)
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{
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UdpClientHelper apClient(staNodeInterface.GetAddress(0), 5001);
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apClient.SetAttribute("MaxPackets", UintegerValue(4294967295U));
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apClient.SetAttribute("Interval", TimeValue(Time("0.00001"))); // packets/s
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apClient.SetAttribute("PacketSize", UintegerValue(payloadSize)); // bytes
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ApplicationContainer apClientApp = apClient.Install(wifiApNode.Get(0));
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apClientApp.Start(Seconds(1.0));
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apClientApp.Stop(simulationTime + Seconds(1.0));
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}
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if (staHasTraffic)
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{
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UdpClientHelper staClient(apNodeInterface.GetAddress(0), 9);
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staClient.SetAttribute("MaxPackets", UintegerValue(4294967295U));
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staClient.SetAttribute("Interval", TimeValue(Time("0.00001"))); // packets/s
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staClient.SetAttribute("PacketSize", UintegerValue(payloadSize)); // bytes
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ApplicationContainer staClientApp = staClient.Install(wifiStaNode.Get(0));
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staClientApp.Start(Seconds(1.0));
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staClientApp.Stop(simulationTime + Seconds(1.0));
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}
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Ipv4GlobalRoutingHelper::PopulateRoutingTables();
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Simulator::Stop(simulationTime + Seconds(1.0));
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Simulator::Run();
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double rxBytes;
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double throughput;
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bool error = false;
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if (apHasTraffic)
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{
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rxBytes = payloadSize * DynamicCast<UdpServer>(staServerApp.Get(0))->GetReceived();
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throughput = (rxBytes * 8) / simulationTime.GetMicroSeconds(); // Mbit/s
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std::cout << "AP Throughput: " << throughput << " Mbit/s" << std::endl;
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if (throughput == 0)
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{
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error = true;
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}
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}
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if (staHasTraffic)
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{
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rxBytes = payloadSize * DynamicCast<UdpServer>(apServerApp.Get(0))->GetReceived();
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throughput = (rxBytes * 8) / simulationTime.GetMicroSeconds(); // Mbit/s
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std::cout << "STA Throughput: " << throughput << " Mbit/s" << std::endl;
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if (throughput == 0)
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{
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error = true;
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}
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}
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Simulator::Destroy();
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if (error)
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{
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NS_LOG_ERROR("No traffic received!");
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exit(1);
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}
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return 0;
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}
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