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wifi-central-controlled-aggregation.cc
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wifi-central-controlled-aggregation.cc
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2017 Jose Saldana, University of Zaragoza ([email protected])
*
* This work has been partially financed by the EU H2020 Wi-5 project (G.A. no: 644262).
*
* If you use this code, please cite the next research article:
*
* Jose Saldana, Jose Ruiz-Mas, Jose Almodovar, "Frame Aggregation in Central Controlled
* 802.11 WLANs: the Latency vs. Throughput Trade-off," IEEE Communications Letters,
* vol.21, no. 2, pp. 2500-2530, Nov. 2017. ISSN 1089-7798.
* http://dx.doi.org/10.1109/LCOMM.2017.2741940
*
* http://ieeexplore.ieee.org/document/8013762/
* Author's self-archive version: http://diec.unizar.es/~jsaldana/personal/amsterdam_2017_in_proc.pdf
*
* 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
*
* Some parts are inspired on https://www.nsnam.org/doxygen/wifi-aggregation_8cc.html, by Sebastien Deronne
* Other parts are inspired on https://www.nsnam.org/doxygen/wifi-wired-bridging_8cc_source.html
* The flow monitor part is inspired on https://www.nsnam.org/doxygen/wifi-hidden-terminal_8cc_source.html
* The association record is inspired on https://github.com/MOSAIC-UA/802.11ah-ns3/blob/master/ns-3/scratch/s1g-mac-test.cc
* The hub is inspired on https://www.nsnam.org/doxygen/csma-bridge_8cc_source.html
*
* v194
* Developed and tested for ns-3.27, https://www.nsnam.org/ns-3-27/
*/
// PENDING
/*
1) make the 'unset assoc' change the channel to that of the closest AP
Two possibilities:
- WORKING: the STA deassociates by itself. I have to use Yanswifi.
- Not working yet: That it needs the new AP to send beacons to it. In this second option,
the command 'addoperational channel' should be used on each STA.
see https://www.nsnam.org/doxygen/classns3_1_1_spectrum_wifi_phy.html#a948c6d197accf2028529a2842ec68816
2) To separate this file into a number of them, using .h files.
*/
//
// The network scenario includes
// - a number of STA wifi nodes, with different mobility patterns
// - a number of AP wifi nodes. They are distributed in rows and columns in an area
// - a number of servers: each of them communicates with one STA (it is the origin or the destination of the packets)
//
// On each AP node, there is
// - a csma device
// - a wifi device
// - a bridge that binds both interfaces the whole thing into one network
//
// IP addresses:
// - the STAs have addresses 10.0.0.0 (mask 255.255.0.0)
// - the servers behind the router (only in topology 2) have addresses 10.1.0.0 (mask 255.255.0.0)
//
// There are three topologies:
//
// topology = 0
//
// (*)
// +--|-+ 10.0.0.0
// (*) |STA1| csma +-----------+ csma +--------+
// +--|-+ +----+ +---------------| hub |--------| single | All the server applications
// |STA0| | +-----------+ | server | are in this node
// +----+ | | +--------+
// | csma|
// +-------------|--+ +------------|--+
// | +----+ +----+ | | +----+ +----+ |
// ((*))--|WIFI| |CSMA| | ((*))--|WIFI| |CSMA| |
// | +----+ +----+ | | +----+ +----+ |
// | | | | | | | |
// | +----------+ | | +---------+ |
// | | BRIDGE | | | | BRIDGE | |
// | +----------+ | | +---------+ |
// +----------------+ +---------------+
// AP 0 AP 1
//
//
//
// topology = 1
//
// (*)
// +--|-+ 10.0.0.0
// (*) |STA1| csma +-----------+ csma
// +--|-+ +----+ +---------------| hub |----------------------------------------+
// |STA0| | +-----------+----------------------+ |
// +----+ | | | |
// | csma| | |
// +-------------|--+ +------------|--+ +--------+ +--------+
// | +----+ +----+ | | +----+ +----+ | | +----+ | | +----+ |
// ((*))--|WIFI| |CSMA| | ((*))--|WIFI| |CSMA| | | |CSMA| | | |CSMA| | ...
// | +----+ +----+ | | +----+ +----+ | | +----+ | | +----+ |
// | | | | | | | | | | | |
// | +----------+ | | +---------+ | +--------+ +--------+
// | | BRIDGE | | | | BRIDGE | | server 0 server 1
// | +----------+ | | +---------+ |
// +----------------+ +---------------+ talks with talks with
// AP 0 AP 1 STA 0 STA 1
//
//
//
// topology = 2 (DEFAULT)
//
// (*)
// +--|-+ 10.0.0.0 10.1.0.0
// (*) |STA1| csma +-----------+ csma +--------+ point to point
// +--|-+ +----+ +---------------| hub |--------| router |----------------------+
// |STA0| | +-----------+ | |----+ |
// +----+ | | +--------+ | |
// | csma| | |
// +-------------|--+ +------------|--+ +--------+ +--------+
// | +----+ +----+ | | +----+ +----+ | | +----+ | | +----+ |
// ((*))--|WIFI| |CSMA| | ((*))--|WIFI| |CSMA| | | |CSMA| | | |CSMA| | ...
// | +----+ +----+ | | +----+ +----+ | | +----+ | | +----+ |
// | | | | | | | | | | | |
// | +----------+ | | +---------+ | +--------+ +--------+
// | | BRIDGE | | | | BRIDGE | | server 0 server 1
// | +----------+ | | +---------+ |
// +----------------+ +---------------+ talks with talks with
// AP 0 AP 1 STA 0 STA 1
//
//
// When the default aggregation parameters are enabled, the
// maximum A-MPDU size is the one defined by the standard, and the throughput is maximal.
// When aggregation is limited, the throughput is lower
//
// Packets in this simulation can be marked with a QosTag so they
// will be considered belonging to different queues.
// By default, all the packets belong to the BestEffort Access Class (AC_BE).
//
// The user can select many parameters when calling the program. Examples:
// ns-3.27$ ./waf --run "scratch/wifi-central-controlled-aggregation --PrintHelp"
// ns-3.27$ ./waf --run "scratch/wifi-central-controlled-aggregation --number_of_APs=1 --nodeMobility=1 --nodeSpeed=0.1 --simulationTime=10 --distance_between_APs=20"
//
// if you want different results in different runs, use a different seed each time you call the program
// (see https://www.nsnam.org/docs/manual/html/random-variables.html). One example:
//
// ns-3.26$ NS_GLOBAL_VALUE="RngRun=3" ./waf --run "scratch/wifi-central-controlled-aggregation --simulationTime=2 --nodeMobility=3 --verboseLevel=2 --number_of_APs=10 --number_of_APs_per_row=1"
// you can call it with different values of RngRun to obtain different realizations
//
// for being able to see the logs, do ns-3.26$ export NS_LOG=UdpEchoClientApplication=level_all
// or /ns-3-dev$ export 'NS_LOG=ArpCache=level_all'
// or /ns-3-dev$ export 'NS_LOG=ArpCache=level_error' for showing only errors
// see https://www.nsnam.org/docs/release/3.7/tutorial/tutorial_21.html
// see https://www.nsnam.org/docs/tutorial/html/tweaking.html#usinglogging
// Output files
// You can establish a 'name' and a 'surname' for the output files, using the parameters:
// --outputFileName=name --outputFileSurname=seed-1
//
// You can run a battery of tests with the same name and different surname, and you
// will finally obtain a single file name_average.txt with all the averaged results.
//
// Example: if you use --outputFileName=name --outputFileSurname=seed-1
// you will obtain the next output files:
//
// - name_average.txt it integrates all the tests with the same name, even if they have a different surname
// the file is not deleted, so each test with the same name is added at the bottom
// - name_seed-1_flows.txt information of all the flows of this run
// - name_seed-1_flow_1_delay_histogram.txt delay histogram of flow #1
// - name_seed-1_flow_1_jitter_histogram.txt
// - name_seed-1_flow_1_packetsize_histogram.txt
// - name_seed-1_KPIs.txt text file reporting periodically the KPIs (generated if aggregationDynamicAlgorithm==1)
// - name_seed-1_positions.txt text file reporting periodically the positions of the STAs
// - name_seed-1_AMPDUvalues.txt text file reporting periodically the AMPDU values (generated if aggregationDynamicAlgorithm==1)
// - name_seed-1_flowmonitor.xml
// - name_seed-1_AP-0.2.pcap pcap file of the device 2 of AP #0
// - name_seed-1_server-2-1.pcap pcap file of the device 1 of server #2
// - name_seed-1_STA-8-1.pcap pcap file of the device 1 of STA #8
// - name_seed-1_hub.pcap pcap file of the hub connecting all the APs
#include "ns3/core-module.h"
#include "ns3/mobility-module.h"
#include "ns3/applications-module.h"
#include "ns3/wifi-module.h"
#include "ns3/network-module.h"
#include "ns3/csma-module.h"
#include "ns3/point-to-point-module.h"
#include "ns3/internet-module.h"
#include "ns3/bridge-helper.h"
#include "ns3/flow-monitor-module.h"
#include "ns3/nstime.h"
#include "ns3/spectrum-module.h" // For the spectrum channel
#include <ns3/friis-spectrum-propagation-loss.h>
#include "ns3/ipv4-static-routing-helper.h"
#include "ns3/random-variable-stream.h"
#include <sstream>
//#include "ns3/arp-cache.h" // If you want to do things with the ARPs
//#include "ns3/arp-header.h"
using namespace ns3;
// Maximum AMPDU size of 802.11n
#define MAXSIZE80211n 65535
// Maximum AMPDU size of 802.11ac
//https://groups.google.com/forum/#!topic/ns-3-users/T_21O5mGlgM
//802.11ac allows the maximum A-MPDU length to range from 8 KB to 1 MB.
// The maximum transmission length is defined by time, and is a little less than 5.5 microseconds. At the highest data rates for 802.11ac,
//an aggregate frame can hold almost four and a half megabytes of data. Rather than represent such a large number of bytes in the PLCP header,
//which is transmitted at the lowest possible data rate, 802.11ac shifts the length indication to the MPDU delimiters that are transmitted
//as part of the high-data-rate payload
// http://www.rfwireless-world.com/Tutorials/802-11ac-MAC-layer.html
// Max. length of A-MPDU = 2^13+Exp -1 bytes
// Exp can range from 0 to 7, this yields A-MPDU to be of length:
// - 2^13 - 1 = 8191 (8KB)
// - 2^20 - 1 = 1,048,575 (about 1MB)
#define MAXSIZE80211ac 65535 // FIXME. for 802.11ac max ampdu size should be 4692480
// You can set it in src/wifi/model/regular-wifi-mac.cc
// https://www.nsnam.org/doxygen/classns3_1_1_sta_wifi_mac.html
#define STEPADJUSTAMPDUDEFAULT 1000 // Default value. We will update AMPDU up and down using this step size
#define AGGRESSIVENESS 10 // Factor to decrease AMPDU down
#define INITIALPORT_VOIP_UPLOAD 10000 // The value of the port for the first VoIP upload communication
#define INITIALPORT_VOIP_DOWNLOAD 20000 // The value of the port for the first VoIP download communication
#define INITIALPORT_TCP_UPLOAD 30000 // The value of the port for the first TCP upload communication
#define INITIALPORT_TCP_DOWNLOAD 40000 // The value of the port for the first TCP download communication
#define INITIALPORT_VIDEO_DOWNLOAD 50000 // The value of the port for the first video download communication
#define MTU 1500 // The value of the MTU of the packets
#define INITIALTIMEINTERVAL 1.0 // time before the applications start (seconds). The same amount of time is added at the end
#define HANDOFFMETHOD 0 // IF it is 1 it means that ns3 is in charge of the channel switch of the STA for performing handoffs
// If it is 0 it means that the method is implemented in this script
// Define a log component
NS_LOG_COMPONENT_DEFINE ("SimpleMpduAggregation");
// Change the frequency of a STA
// Copied from https://groups.google.com/forum/#!topic/ns-3-users/Ih8Hgs2qgeg
// https://10343742895474358856.googlegroups.com/attach/1b7c2a3108d5e/channel-switch-minimal.cc?part=0.1&view=1&vt=ANaJVrGFRkTkufO3dLFsc9u1J_v2-SUCAMtR0V86nVmvXWXGwwZ06cmTSv7DrQUKMWTVMt_lxuYTsrYxgVS59WU3kBd7dkkH5hQsLE8Em0FHO4jx8NbjrPk
void ChangeFrequencyLocal
(NetDeviceContainer deviceslink, uint8_t channel, uint32_t mywifiModel, uint32_t myverbose) {
for (uint32_t i = 0; i < deviceslink.GetN (); i++) {
if (myverbose > 1)
std::cout << Simulator::Now().GetSeconds()
<< "\t[ChangeFrequencyLocal]\tChanging channel on STA with MAC " << deviceslink.Get (i)->GetAddress ()
<< " to: " << uint16_t(channel) << std::endl;
Ptr<WifiNetDevice> wifidevice = DynamicCast<WifiNetDevice> (deviceslink.Get(i));
if (wifidevice == 0) std::cout << "[ChangeFrequencyLocal]\tWARNING: wifidevice IS NULL" << '\n';
Ptr<WifiPhy> phy0 = wifidevice->GetPhy();
// phy0->SetChannelNumber (channel); //https://www.nsnam.org/doxygen/classns3_1_1_wifi_phy.html#a2d13cf6ae4c185cae8516516afe4a32a
if (mywifiModel == 0) {
Ptr<WifiPhy> phy0 = wifidevice->GetPhy();
phy0->SetChannelNumber (channel);
} else {
Ptr<SpectrumWifiPhy> phy0 = wifidevice->GetPhy()->GetObject<SpectrumWifiPhy>();
phy0->SetChannelNumber (channel);
}
if (myverbose > 1)
std::cout << Simulator::Now().GetSeconds()
<< "\t[ChangeFrequencyLocal]\tChanged channel on STA with MAC " << deviceslink.Get (i)->GetAddress ()
<< " to: " << uint16_t(channel) << std::endl;
}
}
/*********** This part is only for the ARPs. Not used **************/
typedef std::pair<Ptr<Packet>, Ipv4Header> Ipv4PayloadHeaderPair;
static void PrintArpCache (Ptr <Node> node, Ptr <NetDevice> nd/*, Ptr <Ipv4Interface> interface*/)
{
std::cout << "Printing Arp Cache of Node#" << node->GetId() << '\n';
Ptr <ArpL3Protocol> arpL3 = node->GetObject <ArpL3Protocol> ();
//Ptr <ArpCache> arpCache = arpL3->FindCache (nd);
//arpCache->Flush ();
// Get an interactor to Ipv4L3Protocol instance
Ptr<Ipv4L3Protocol> ip = node->GetObject<Ipv4L3Protocol> ();
NS_ASSERT(ip !=0);
// Get interfaces list from Ipv4L3Protocol iteractor
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
// For each interface
uint32_t l = 0;
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++)
{
// Get an interactor to Ipv4L3Protocol instance
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
NS_ASSERT(ipIface != 0);
std::cout << "Interface #" << l << " IP address" << /*<< */'\n';
l++;
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
if (device == nd) {
// Get MacAddress assigned to this device
Mac48Address addr = Mac48Address::ConvertFrom(device->GetAddress ());
// For each Ipv4Address in the list of Ipv4Addresses assign to this interface...
for(uint32_t k = 0; k < ipIface->GetNAddresses (); k++)
{
// Get Ipv4Address
Ipv4Address ipAddr = ipIface->GetAddress (k).GetLocal();
// If Loopback address, go to the next
if(ipAddr == Ipv4Address::GetLoopback())
{
NS_LOG_UNCOND ("[PrintArpCache] Node #" << node->GetId() << " " << addr << ", " << ipAddr << "");
} else {
NS_LOG_UNCOND ("[PrintArpCache] Node #" << node->GetId() << " " << addr << ", " << ipAddr << "");
Ptr<ArpCache> m_arpCache = nd->GetObject<ArpCache> ();
m_arpCache = ipIface->GetObject<ArpCache> (); // FIXME: THIS DOES NOT WORK
//m_arpCache = node->GetObject<ArpCache> ();
//m_arpCache = nd->GetObject<ArpCache> ();
//m_arpCache->SetAliveTimeout(Seconds(7));
//if (m_arpCache != 0) {
NS_LOG_UNCOND ("[PrintArpCache] " << node->GetId() << " " << addr << ", " << ipAddr << "");
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
m_arpCache->PrintArpCache(stream);
m_arpCache->Flush();
//ArpCache::Entry * entry = m_arpCache->Add(ipAddr);
//entry->MarkWaitReply(0);
//entry->MarkAlive(addr);
//}
}
}
}
}
Simulator::Schedule (Seconds(1.0), &PrintArpCache, node, nd);
}
// empty the ARP cache of a node
void emtpyArpCache(Ptr <Node> mynode, uint32_t myverbose)
{
// Create ARP Cache object
Ptr<ArpCache> arp = CreateObject<ArpCache> ();
Ptr<Ipv4L3Protocol> ip = mynode->GetObject<Ipv4L3Protocol> ();
// do it only if the node has IP
if ( ip != 0 ) {
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
uint32_t interfaceNum = 0;
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++)
{
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
arp->SetDevice (device, ipIface); // https://www.nsnam.org/doxygen/classns3_1_1_arp_cache.html#details
//ipIface->SetAttribute("ArpCache", PointerValue(arp));
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
arp->PrintArpCache(stream);
if (myverbose) {
std::cout << Simulator::Now().GetSeconds() << '\t'
<< "[emtpyArpCache] Initial Arp cache of Node #" << mynode->GetId()
<< '\n';
std::cout << "\t\t\tInterface # " << interfaceNum;
std::cout << stream << '\n';
}
arp->Flush(); //Clear the ArpCache of all entries. It sets the default parameters again
if (myverbose) {
std::cout << Simulator::Now().GetSeconds() << '\t'
<< "[emtpyArpCache] Modified Arp cache of Node #" << mynode->GetId()
<< '\n';
std::cout << "\t\t\tInterface # " << interfaceNum;
std::cout << stream << '\n';
}
interfaceNum ++;
}
}
// If you want to do this periodically:
//Simulator::Schedule (Seconds(1.0), &emtpyArpCache, mynode, myverbose);
}
// Modify the ARP parameters of a node
void modifyArpParams(Ptr <Node> mynode, double aliveTimeout, uint32_t myverbose)
{
// Create ARP Cache object
Ptr<ArpCache> arp = CreateObject<ArpCache> ();
Ptr<Ipv4L3Protocol> ip = mynode->GetObject<Ipv4L3Protocol> ();
// do it only if the node has IP
if ( ip != 0 ) {
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
uint32_t interfaceNum = 0;
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++)
{
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
arp->SetDevice (device, ipIface); // https://www.nsnam.org/doxygen/classns3_1_1_arp_cache.html#details
//ipIface->SetAttribute("ArpCache", PointerValue(arp));
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
arp->PrintArpCache(stream);
if (myverbose) {
std::cout << Simulator::Now().GetSeconds() << '\t'
<< "[modifyArpParams] Initial Arp parameters of Node #" << mynode->GetId()
<< '\n';
std::cout << "\t\t\tInterface # " << interfaceNum
<< '\n';
Time mytime = arp->GetAliveTimeout();
std::cout << "\t\t\t\tAlive Timeout [s]: " << mytime.GetSeconds()
<< '\n';
mytime = arp->GetDeadTimeout();
std::cout << "\t\t\t\tDead Timeout [s]: " << mytime.GetSeconds()
<< '\n';
}
//arp->Flush(); //Clear the ArpCache of all entries. It sets the default parameters again
//aliveTimeout = aliveTimeout + 1.0;
Time alive = Seconds (aliveTimeout);
arp->SetAliveTimeout (alive);
if (myverbose) {
std::cout << Simulator::Now().GetSeconds() << '\t'
<< "[modifyArpParams] Modified Arp parameters of Node #" << mynode->GetId()
<< '\n';
std::cout << "\t\t\tInterface # " << interfaceNum
<< '\n';
Time mytime = arp->GetAliveTimeout();
std::cout << "\t\t\t\tAlive Timeout [s]: " << mytime.GetSeconds()
<< '\n';
mytime = arp->GetDeadTimeout();
std::cout << "\t\t\t\tDead Timeout [s]: " << mytime.GetSeconds()
<< '\n';
}
interfaceNum ++;
}
}
// If you want to do this periodically:
//Simulator::Schedule (Seconds(1.0), &modifyArpParams, mynode, aliveTimeout, myverbose);
}
void infoArpCache(Ptr <Node> mynode, uint32_t myverbose)
{
// Create ARP Cache object
Ptr<ArpCache> arp = CreateObject<ArpCache> ();
Ptr<Ipv4L3Protocol> ip = mynode->GetObject<Ipv4L3Protocol> ();
if (ip!=0) {
std::cout << Simulator::Now().GetSeconds() << '\t'
<< "[infoArpCache] Arp parameters of Node #" << mynode->GetId()
<< '\n';
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
uint32_t interfaceNum = 0;
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++)
{
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
arp->SetDevice (device, ipIface); // https://www.nsnam.org/doxygen/classns3_1_1_arp_cache.html#details
//ipIface->SetAttribute("ArpCache", PointerValue(arp));
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
arp->PrintArpCache(stream);
if (myverbose) {
std::cout << "\t\t\tInterface # " << interfaceNum
<< '\n';
Time mytime = arp->GetAliveTimeout();
std::cout << "\t\t\t\tAlive Timeout [s]: " << mytime.GetSeconds()
<< '\n';
mytime = arp->GetDeadTimeout();
std::cout << "\t\t\t\tDead Timeout [s]: " << mytime.GetSeconds()
<< '\n';
}
interfaceNum ++;
}
}
// If you want to do this periodically:
//Simulator::Schedule (Seconds(1.0), &infoArpCache, mynode, myverbose);
}
// Taken from here https://github.com/MOSAIC-UA/802.11ah-ns3/blob/master/ns-3/scratch/s1g-mac-test.cc
// Two typos corrected here https://groups.google.com/forum/#!topic/ns-3-users/JRE_BsNEJrY
// It seems this is not feasible: https://www.nsnam.org/bugzilla/show_bug.cgi?id=187
void PopulateArpCache (uint32_t nodenumber, Ptr <Node> mynode)
{
// Create ARP Cache object
Ptr<ArpCache> arp = CreateObject<ArpCache> ();
Ptr<Packet> dummy = Create<Packet> ();
// Set ARP Timeout
//arp->SetAliveTimeout (Seconds(3600 * 24 )); // 1-year
//arp->SetWaitReplyTimeout (Seconds(200));
// Populates ARP Cache with information from all nodes
/*for (NodeList::Iterator i = NodeList::Begin(); i != NodeList::End(); ++i) {*/
std::cout << "[PopulateArpCache] Node #" << nodenumber << '\n';
// Get an interactor to Ipv4L3Protocol instance
Ptr<Ipv4L3Protocol> ip = mynode->GetObject<Ipv4L3Protocol> ();
NS_ASSERT(ip !=0);
// Get interfaces list from Ipv4L3Protocol iteractor
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
// For each interface
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++) {
// Get an interactor to Ipv4L3Protocol instance
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
NS_ASSERT(ipIface != 0);
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
// Get MacAddress assigned to this device
Mac48Address addr = Mac48Address::ConvertFrom(device->GetAddress ());
// For each Ipv4Address in the list of Ipv4Addresses assign to this interface...
for(uint32_t k = 0; k < ipIface->GetNAddresses (); k++) {
// Get Ipv4Address
Ipv4Address ipAddr = ipIface->GetAddress (k).GetLocal();
// If Loopback address, go to the next
if(ipAddr == Ipv4Address::GetLoopback())
continue;
std::cout << "[PopulateArpCache] Arp Cache: Adding the pair (" << addr << "," << ipAddr << ")" << '\n';
// Creates an ARP entry for this Ipv4Address and adds it to the ARP Cache
Ipv4Header ipHeader;
ArpCache::Entry * entry = arp->Add(ipAddr);
//entry->IsPermanent();
//entry->MarkWaitReply();
//entry->MarkPermanent();
//entry->MarkAlive(addr);
//entry->MarkDead();
entry->MarkWaitReply (Ipv4PayloadHeaderPair(dummy,ipHeader));
entry->MarkAlive (addr);
entry->ClearPendingPacket();
entry->MarkPermanent ();
NS_LOG_UNCOND ("[PopulateArpCache] Arp Cache: Added the pair (" << addr << "," << ipAddr << ")");
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
arp->PrintArpCache(stream);
}
// }
// Assign ARP Cache to each interface of each node
for (NodeList::Iterator i = NodeList::Begin(); i != NodeList::End(); ++i)
{
Ptr<Ipv4L3Protocol> ip = (*i)->GetObject<Ipv4L3Protocol> ();
if (ip!=0) {
std::cout << "[PopulateArpCache] Adding the Arp Cache to Node #" << nodenumber << '\n';
ObjectVectorValue interfaces;
ip->GetAttribute("InterfaceList", interfaces);
for(ObjectVectorValue::Iterator j = interfaces.Begin(); j !=interfaces.End (); j ++)
{
Ptr<Ipv4Interface> ipIface = (j->second)->GetObject<Ipv4Interface> ();
// Get interfaces list from Ipv4L3Protocol iteractor
Ptr<NetDevice> device = ipIface->GetDevice();
NS_ASSERT(device != 0);
arp->SetDevice (device, ipIface); // https://www.nsnam.org/doxygen/classns3_1_1_arp_cache.html#details
//ipIface->SetAttribute("ArpCache", PointerValue(arp));
AsciiTraceHelper asciiTraceHelper;
Ptr<OutputStreamWrapper> stream = asciiTraceHelper.CreateFileStream ("arpcache.txt");
arp->PrintArpCache(stream);
Time mytime = arp->GetAliveTimeout();
std::cout << "Alive Timeout [s]: " << mytime.GetSeconds() << '\n';
}
}
}
}
}
/************* END of the ARP part (not used) *************/
// Modify the max AMPDU value of a node
void ModifyAmpdu (uint32_t nodeNumber, uint32_t ampduValue, uint32_t myverbose)
{
// These are the attributes of regular-wifi-mac: https://www.nsnam.org/doxygen/regular-wifi-mac_8cc_source.html
// You have to build a line like this (e.g. for node 0):
// Config::Set("/NodeList/0/DeviceList/*/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/BE_MaxAmpduSize", UintegerValue(ampduValue));
// There are 4 queues: VI, VO, BE and BK
// FIXME: Check if I only have to modify the parameters of all the devices (*), or only some of them.
// I use an auxiliar string for creating the first argument of Config::Set
std::ostringstream auxString;
// VI queue
auxString << "/NodeList/" << nodeNumber << "/DeviceList/*/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/VI_MaxAmpduSize";
// std::cout << auxString.str() << '\n';
Config::Set(auxString.str(), UintegerValue(ampduValue));
// clean the string
auxString.str(std::string());
// VO queue
auxString << "/NodeList/" << nodeNumber << "/DeviceList/*/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/VO_MaxAmpduSize";
// std::cout << auxString.str() << '\n';
Config::Set(auxString.str(), UintegerValue(ampduValue));
// clean the string
auxString.str(std::string());
// BE queue
auxString << "/NodeList/" << nodeNumber << "/DeviceList/*/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/BE_MaxAmpduSize";
// std::cout << auxString.str() << '\n';
Config::Set(auxString.str(), UintegerValue(ampduValue));
// clean the string
auxString.str(std::string());
// BK queue
auxString << "/NodeList/" << nodeNumber << "/DeviceList/*/$ns3::WifiNetDevice/Mac/$ns3::RegularWifiMac/BK_MaxAmpduSize";
//std::cout << auxString.str() << '\n';
Config::Set(auxString.str(), UintegerValue(ampduValue));
if ( myverbose > 1 )
std::cout << Simulator::Now().GetSeconds()
<< "\t[ModifyAmpdu] Node #" << nodeNumber
<< " AMPDU max size changed to " << ampduValue << " bytes"
<< std::endl;
}
/*
// Not used
// taken from https://www.nsnam.org/doxygen/wifi-ap_8cc.html
// set the position of a node
static void
SetPosition (Ptr<Node> node, Vector position)
{
Ptr<MobilityModel> mobility = node->GetObject<MobilityModel> ();
mobility->SetPosition (position);
}*/
// Return a vector with the position of a node
// taken from https://www.nsnam.org/doxygen/wifi-ap_8cc.html
static Vector
GetPosition (Ptr<Node> node)
{
Ptr<MobilityModel> mobility = node->GetObject<MobilityModel> ();
return mobility->GetPosition ();
}
// obtain the nearest AP of a STA
static Ptr<Node>
nearestAp (NodeContainer APs, Ptr<Node> mySTA, int myverbose)
{
// calculate an initial value for the minimum distance (a very high value)
double mimimumDistance = APs.GetN() * 100000;
// variable for storing the nearest AP
Ptr<Node> nearest;
// vector with the position of the STA
Vector posSta = GetPosition (mySTA);
// vector with the position of the AP
Vector posAp;
if (myverbose > 3)
std::cout << Simulator::Now().GetSeconds()
<< "\t[nearestAp]\tSTA #" << mySTA->GetId()
<< "\tPosition: " << posSta.x << "," << posSta.y
<< std::endl;
// Check all the APs to find the nearest one
NodeContainer::Iterator i;
for (i = APs.Begin (); i != APs.End (); ++i)
{
//(*i)->method (); // some Node method
posAp = GetPosition((*i));
uint32_t distance = sqrt ( ( (posSta.x - posAp.x)*(posSta.x - posAp.x) ) + ( (posSta.y - posAp.y)*(posSta.y - posAp.y) ) );
if (distance < mimimumDistance ) {
mimimumDistance = distance;
nearest = *i;
}
}
if (myverbose > 3)
std::cout << Simulator::Now().GetSeconds()
<< "\t[nearestAp]\t\tNearest AP is AP#" << nearest->GetId()
<< ". Position: " << GetPosition((nearest)).x
<< "," << GetPosition((nearest)).y
<< std::endl;
return nearest;
}
// Print the simulation time to std::cout
static void printTime (double period, std::string myoutputFileName, std::string myoutputFileSurname)
{
std::cout << Simulator::Now().GetSeconds() << "\t"
<< myoutputFileName << "_"
<< myoutputFileSurname << '\n';
// re-schedule
Simulator::Schedule (Seconds (period), &printTime, period, myoutputFileName, myoutputFileSurname);
}
// function for tracking mobility changes
static void
CourseChange (std::string foo, Ptr<const MobilityModel> mobility)
{
Vector pos = mobility->GetPosition ();
Vector vel = mobility->GetVelocity ();
std::cout << Simulator::Now ().GetSeconds()
<< "\t[CourseChange] MOBILITY CHANGE. model= "
<< mobility << ", POS: x=" << pos.x
<< ", y=" << pos.y
<< ", z=" << pos.z
<< "; VEL:" << vel.x
<< ", y=" << vel.y
<< ", z=" << vel.z << std::endl;
}
// Print the statistics to an output file and/or to the screen
void
print_stats ( FlowMonitor::FlowStats st,
double simulationTime,
uint32_t mygenerateHistograms,
std::string fileName,
std::string fileSurname,
uint32_t myverbose,
std::string flowID,
uint32_t printColumnTitles )
{
// print the results to a file (they are written at the end of the file)
if ( fileName != "" ) {
std::ofstream ofs;
ofs.open ( fileName + "_flows.txt", std::ofstream::out | std::ofstream::app); // with "trunc" Any contents that existed in the file before it is open are discarded. with "app", all output operations happen at the end of the file, appending to its existing contents
// Print a line in the output file, with the title of each column
if ( printColumnTitles == 1 ) {
ofs << "Flow_ID" << "\t"
<< "Protocol" << "\t"
<< "source_Address" << "\t"
<< "source_Port" << "\t"
<< "destination_Address" << "\t"
<< "destination_Port" << "\t"
<< "Num_Tx_Packets" << "\t"
<< "Num_Tx_Bytes" << "\t"
<< "Tx_Throughput_[bps]" << "\t"
<< "Num_Rx_Packets" << "\t"
<< "Num_RX_Bytes" << "\t"
<< "Num_lost_packets" << "\t"
<< "Rx_Throughput_[bps]" << "\t"
<< "Average_Latency_[s]" << "\t"
<< "Average_Jitter_[s]" << "\t"
<< "Average_Number_of_hops" << "\t"
<< "Simulation_time_[s]" << "\n";
}
// Print a line in the output file, with the data of this flow
ofs << flowID << "\t" // flowID includes the protocol, IP addresses and ports
<< st.txPackets << "\t"
<< st.txBytes << "\t"
<< st.txBytes * 8.0 / simulationTime << "\t"
<< st.rxPackets << "\t"
<< st.rxBytes << "\t"
<< st.txPackets - st.rxPackets << "\t"
<< st.rxBytes * 8.0 / simulationTime << "\t";
if (st.rxPackets > 0)
{
ofs << (st.delaySum.GetSeconds() / st.rxPackets) << "\t";
if (st.rxPackets > 1) { // I need at least two packets for calculating the jitter
ofs << (st.jitterSum.GetSeconds() / (st.rxPackets - 1.0)) << "\t";
} else {
ofs << "\t";
}
ofs << st.timesForwarded / st.rxPackets + 1 << "\t";
} else { //no packets arrived
ofs << "\t" << "\t" << "\t";
}
ofs << simulationTime << "\n";
ofs.close();
// save the histogram to a file
if ( mygenerateHistograms > 0 )
{
std::ofstream ofs_histo;
ofs_histo.open ( fileName + fileSurname + "_delay_histogram.txt", std::ofstream::out | std::ofstream::trunc);
ofs_histo << "Flow #" << flowID << "\n";
ofs_histo << "number\tinit_interval\tend_interval\tnumber_of_samples" << std::endl;
for (uint32_t i=0; i < st.delayHistogram.GetNBins (); i++)
ofs_histo << i << "\t" << st.delayHistogram.GetBinStart (i) << "\t" << st.delayHistogram.GetBinEnd (i) << "\t" << st.delayHistogram.GetBinCount (i) << std::endl;
ofs_histo.close();
ofs_histo.open ( fileName + fileSurname + "_jitter_histogram.txt", std::ofstream::out | std::ofstream::trunc); // with "trunc", Any contents that existed in the file before it is open are discarded
ofs_histo << "Flow #" << flowID << "\n";
ofs_histo << "number\tinit_interval\tend_interval\tnumber_of_samples" << std::endl;
for (uint32_t i=0; i < st.jitterHistogram.GetNBins (); i++ )
ofs_histo << i << "\t" << st.jitterHistogram.GetBinStart (i) << "\t" << st.jitterHistogram.GetBinEnd (i) << "\t" << st.jitterHistogram.GetBinCount (i) << std::endl;
ofs_histo.close();
ofs_histo.open ( fileName + fileSurname + "_packetsize_histogram.txt", std::ofstream::out | std::ofstream::trunc); // with "trunc", Any contents that existed in the file before it is open are discarded
ofs_histo << "Flow #" << flowID << "\n";
ofs_histo << "number\tinit_interval\tend_interval\tnumber_of_samples"<< std::endl;
for (uint32_t i=0; i < st.packetSizeHistogram.GetNBins (); i++ )
ofs_histo << i << "\t" << st.packetSizeHistogram.GetBinStart (i) << "\t" << st.packetSizeHistogram.GetBinEnd (i) << "\t" << st.packetSizeHistogram.GetBinCount (i) << std::endl;
ofs_histo.close();
}
}
// print the results by the screen
if ( myverbose > 0 ) {
std::cout << " -Flow #" << flowID << "\n";
if ( mygenerateHistograms > 0)
std::cout << " The name of the output files starts with: " << fileName << fileSurname << "\n";
std::cout << " Tx Packets: " << st.txPackets << "\n";
std::cout << " Tx Bytes: " << st.txBytes << "\n";
std::cout << " TxOffered: " << st.txBytes * 8.0 / simulationTime / 1000 / 1000 << " Mbps\n";
std::cout << " Rx Packets: " << st.rxPackets << "\n";
std::cout << " Rx Bytes: " << st.rxBytes << "\n";
std::cout << " Lost Packets: " << st.txPackets - st.rxPackets << "\n";
std::cout << " Throughput: " << st.rxBytes * 8.0 / simulationTime / 1000 / 1000 << " Mbps\n";
if (st.rxPackets > 0) // some packets have arrived
{
std::cout << " Mean{Delay}: " << (st.delaySum.GetSeconds() / st.rxPackets);
if (st.rxPackets > 1) // I need at least two packets for calculating the jitter
{
std::cout << " Mean{Jitter}: " << (st.jitterSum.GetSeconds() / (st.rxPackets - 1.0 ));
} else {
std::cout << " Mean{Jitter}: only one packet arrived. ";
}
std::cout << " Mean{Hop Count}: " << st.timesForwarded / st.rxPackets + 1 << "\n";
} else { //no packets arrived
std::cout << " Mean{Delay}: no packets arrived. ";
std::cout << " Mean{Jitter}: no packets arrived. ";
std::cout << " Mean{Hop Count}: no packets arrived. \n";
}
if (( mygenerateHistograms > 0 ) && ( myverbose > 3 ))
{
std::cout << " Delay Histogram" << std::endl;
for (uint32_t i=0; i < st.delayHistogram.GetNBins (); i++)
std::cout << " " << i << "(" << st.delayHistogram.GetBinStart (i)
<< "-" << st.delayHistogram.GetBinEnd (i)
<< "): " << st.delayHistogram.GetBinCount (i)
<< std::endl;
std::cout << " Jitter Histogram" << std::endl;
for (uint32_t i=0; i < st.jitterHistogram.GetNBins (); i++ )
std::cout << " " << i << "(" << st.jitterHistogram.GetBinStart (i)
<< "-" << st.jitterHistogram.GetBinEnd (i)
<< "): " << st.jitterHistogram.GetBinCount (i)
<< std::endl;
std::cout << " PacketSize Histogram "<< std::endl;
for (uint32_t i=0; i < st.packetSizeHistogram.GetNBins (); i++ )
std::cout << " " << i << "(" << st.packetSizeHistogram.GetBinStart (i)
<< "-" << st.packetSizeHistogram.GetBinEnd (i)
<< "): " << st.packetSizeHistogram.GetBinCount (i)
<< std::endl;
}
for (uint32_t i=0; i < st.packetsDropped.size (); i++)
std::cout << " Packets dropped by reason " << i << ": " << st.packetsDropped [i] << std::endl;
// for (uint32_t i=0; i<st.bytesDropped.size(); i++)
// std::cout << "Bytes dropped by reason " << i << ": " << st.bytesDropped[i] << std::endl;
std::cout << "\n";
}
}
// this class stores a number of records: each one contains a pair AP node id - AP MAC address
// the node id is the one given by ns3 when creating the node
class AP_record
{
public:
AP_record ();
//void SetApRecord (uint16_t thisId, Mac48Address thisMac);
void SetApRecord (uint16_t thisId, std::string thisMac, uint32_t thisMaxSizeAmpdu);
//uint16_t GetApid (Mac48Address thisMac);
uint16_t GetApid ();
//Mac48Address GetMac (uint16_t thisId);
std::string GetMac ();
uint32_t GetMaxSizeAmpdu ();
uint8_t GetWirelessChannel();
void setWirelessChannel(uint8_t thisWirelessChannel);
private:
uint16_t apId;
//Mac48Address apMac;
std::string apMac;
uint32_t apMaxSizeAmpdu;
uint8_t apWirelessChannel;
};
typedef std::vector <AP_record * > AP_recordVector;
AP_recordVector AP_vector;
AP_record::AP_record ()
{
apId = 0;
apMac = "02-06-00:00:00:00:00:00";
apMaxSizeAmpdu = 0;
}
void
//AP_record::SetApRecord (uint16_t thisId, Mac48Address thisMac)
AP_record::SetApRecord (uint16_t thisId, std::string thisMac, uint32_t thisMaxSizeAmpdu)
{
apId = thisId;
apMac = thisMac;
apMaxSizeAmpdu = thisMaxSizeAmpdu;
}