157 lines
5.4 KiB
C++
157 lines
5.4 KiB
C++
/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
|
|
/*
|
|
* Copyright (c) 2009 MIRKO BANCHI
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation;
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Author: Mirko Banchi <mk.banchi@gmail.com>
|
|
*/
|
|
|
|
/**
|
|
* This is a simple example in order to show how 802.11e compressed block ack mechanism could be used.
|
|
*
|
|
* Network topology:
|
|
*
|
|
* Wifi 192.168.1.0
|
|
*
|
|
* AP
|
|
* * *
|
|
* | |
|
|
* n1 n2
|
|
*
|
|
* In this example a QoS sta sends UDP datagram packets to access point. On the access point
|
|
* there is no application installed so it replies to every packet with an ICMP frame. However
|
|
* our attention is on originator sta n1. We have set blockAckThreshold (minimum number of packets to use
|
|
* block ack) to 2 so if there are in the BestEffort queue more than 2 packets a block ack will be
|
|
* negotiated. We also set a timeout for block ack inactivity to 3 blocks of 1024 microseconds. This timer is
|
|
* reset when:
|
|
* - the originator receives a block ack frame.
|
|
* - the recipient receives a block ack request or a MPDU with ack policy Block Ack.
|
|
*/
|
|
|
|
#include "ns3/command-line.h"
|
|
#include "ns3/uinteger.h"
|
|
#include "ns3/boolean.h"
|
|
#include "ns3/double.h"
|
|
#include "ns3/string.h"
|
|
#include "ns3/log.h"
|
|
#include "ns3/yans-wifi-helper.h"
|
|
#include "ns3/ssid.h"
|
|
#include "ns3/mobility-helper.h"
|
|
#include "ns3/on-off-helper.h"
|
|
#include "ns3/yans-wifi-channel.h"
|
|
#include "ns3/mobility-model.h"
|
|
#include "ns3/rectangle.h"
|
|
#include "ns3/internet-stack-helper.h"
|
|
#include "ns3/ipv4-address-helper.h"
|
|
#include "ns3/ipv4-global-routing-helper.h"
|
|
|
|
using namespace ns3;
|
|
|
|
NS_LOG_COMPONENT_DEFINE ("Test-block-ack");
|
|
|
|
int main (int argc, char * argv[])
|
|
{
|
|
CommandLine cmd;
|
|
cmd.Parse (argc, argv);
|
|
|
|
LogComponentEnable ("QosTxop", LOG_LEVEL_DEBUG);
|
|
LogComponentEnable ("BlockAckManager", LOG_LEVEL_INFO);
|
|
|
|
Ptr<Node> sta = CreateObject<Node> ();
|
|
Ptr<Node> ap = CreateObject<Node> ();
|
|
|
|
YansWifiChannelHelper channel = YansWifiChannelHelper::Default ();
|
|
YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();
|
|
phy.SetChannel (channel.Create ());
|
|
|
|
WifiHelper wifi;
|
|
WifiMacHelper mac;
|
|
/* disable fragmentation */
|
|
wifi.SetRemoteStationManager ("ns3::AarfWifiManager", "FragmentationThreshold", UintegerValue (2500));
|
|
|
|
Ssid ssid ("My-network");
|
|
|
|
mac.SetType ("ns3::StaWifiMac",
|
|
"QosSupported", BooleanValue (true),
|
|
"Ssid", SsidValue (ssid),
|
|
/* setting blockack threshold for sta's BE queue */
|
|
"BE_BlockAckThreshold", UintegerValue (2),
|
|
/* setting block inactivity timeout to 3*1024 = 3072 microseconds */
|
|
"BE_BlockAckInactivityTimeout", UintegerValue (3));
|
|
NetDeviceContainer staDevice = wifi.Install (phy, mac, sta);
|
|
|
|
mac.SetType ("ns3::ApWifiMac",
|
|
"QosSupported", BooleanValue (true),
|
|
"Ssid", SsidValue (ssid),
|
|
"BE_BlockAckThreshold", UintegerValue (0));
|
|
NetDeviceContainer apDevice = wifi.Install (phy, mac, ap);
|
|
|
|
/* Setting mobility model */
|
|
MobilityHelper mobility;
|
|
|
|
mobility.SetPositionAllocator ("ns3::GridPositionAllocator",
|
|
"MinX", DoubleValue (0.0),
|
|
"MinY", DoubleValue (0.0),
|
|
"DeltaX", DoubleValue (5.0),
|
|
"DeltaY", DoubleValue (10.0),
|
|
"GridWidth", UintegerValue (3),
|
|
"LayoutType", StringValue ("RowFirst"));
|
|
|
|
mobility.SetMobilityModel ("ns3::RandomWalk2dMobilityModel",
|
|
"Bounds", RectangleValue (Rectangle (-50, 50, -50, 50)));
|
|
mobility.Install (sta);
|
|
|
|
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
|
|
mobility.Install (ap);
|
|
|
|
/* Internet stack*/
|
|
InternetStackHelper stack;
|
|
stack.Install (sta);
|
|
stack.Install (ap);
|
|
|
|
Ipv4AddressHelper address;
|
|
|
|
address.SetBase ("192.168.1.0", "255.255.255.0");
|
|
Ipv4InterfaceContainer staIf;
|
|
Ipv4InterfaceContainer apIf;
|
|
staIf = address.Assign (staDevice);
|
|
apIf = address.Assign (apDevice);
|
|
|
|
/* Setting applications */
|
|
|
|
uint16_t port = 9;
|
|
DataRate dataRate ("1Mb/s");
|
|
OnOffHelper onOff ("ns3::UdpSocketFactory", Address (InetSocketAddress (apIf.GetAddress (0), port)));
|
|
onOff.SetAttribute ("DataRate", DataRateValue (dataRate));
|
|
onOff.SetAttribute ("OnTime", StringValue ("ns3::ConstantRandomVariable[Constant=0.01]"));
|
|
onOff.SetAttribute ("OffTime", StringValue ("ns3::ConstantRandomVariable[Constant=8]"));
|
|
onOff.SetAttribute ("PacketSize", UintegerValue (50));
|
|
|
|
ApplicationContainer staApps = onOff.Install (sta);
|
|
|
|
staApps.Start (Seconds (1.0));
|
|
staApps.Stop (Seconds (10.0));
|
|
|
|
Ipv4GlobalRoutingHelper::PopulateRoutingTables ();
|
|
|
|
Simulator::Stop (Seconds (10.0));
|
|
|
|
phy.EnablePcap ("test-blockack", ap->GetId (), 0);
|
|
Simulator::Run ();
|
|
Simulator::Destroy ();
|
|
|
|
return 0;
|
|
}
|