330 lines
12 KiB
C++
330 lines
12 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2014 Wireless Communications and Networking Group (WCNG),
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* University of Rochester, Rochester, NY, USA.
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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: Cristiano Tapparello <cristiano.tapparello@rochester.edu>
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*/
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/**
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*
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* This example extends the energy model example by connecting a basic energy
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* harvester to the nodes.
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*
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* The example considers a simple communication link between a source and a
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* destination node, where the source node sends a packet to the destination
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* every 1 second. Each node is powered by a BasicEnergySource, which is recharged
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* by a BasicEnergyHarvester, and the WiFi radio consumes energy for the transmission/
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* reception of the packets.
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*
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* For the receiver node, the example prints the energy consumption of the WiFi radio,
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* the power harvested by the energy harvester and the residual energy in the
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* energy source.
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*
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* The nodes initial energy is set to 1.0 J, the transmission and reception entail a
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* current consumption of 0.0174 A and 0.0197 A, respectively (default values in
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* WifiRadioEnergyModel). The energy harvester provides an amount of power that varies
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* according to a random variable uniformly distributed in [0 0.1] W, and is updated
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* every 1 s. The energy source voltage is 3 V (default value in BasicEnergySource) and
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* the residual energy level is updated every 1 second (default value).
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*
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* The simulation start at time 0 and it is hard stopped at time 10 seconds. Given the
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* packet size and the distance between the nodes, each transmission lasts 0.0023s.
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* As a result, the destination node receives 10 messages.
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*
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*/
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <string>
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#include "ns3/core-module.h"
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#include "ns3/network-module.h"
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#include "ns3/mobility-module.h"
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#include "ns3/config-store-module.h"
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#include "ns3/energy-module.h"
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#include "ns3/internet-module.h"
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#include "ns3/yans-wifi-helper.h"
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#include "ns3/wifi-radio-energy-model-helper.h"
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using namespace ns3;
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NS_LOG_COMPONENT_DEFINE ("EnergyWithHarvestingExample");
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static inline std::string
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PrintReceivedPacket (Address& from)
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{
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InetSocketAddress iaddr = InetSocketAddress::ConvertFrom (from);
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std::ostringstream oss;
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oss << "--\nReceived one packet! Socket: " << iaddr.GetIpv4 ()
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<< " port: " << iaddr.GetPort ()
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<< " at time = " << Simulator::Now ().GetSeconds ()
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<< "\n--";
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return oss.str ();
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}
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/**
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* \param socket Pointer to socket.
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*
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* Packet receiving sink.
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*/
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void
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ReceivePacket (Ptr<Socket> socket)
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{
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Ptr<Packet> packet;
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Address from;
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while ((packet = socket->RecvFrom (from)))
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{
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if (packet->GetSize () > 0)
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{
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NS_LOG_UNCOND (PrintReceivedPacket (from));
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}
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}
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}
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/**
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* \param socket Pointer to socket.
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* \param pktSize Packet size.
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* \param n Pointer to node.
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* \param pktCount Number of packets to generate.
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* \param pktInterval Packet sending interval.
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*
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* Traffic generator.
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*/
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static void
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GenerateTraffic (Ptr<Socket> socket, uint32_t pktSize, Ptr<Node> n,
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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, socket, pktSize, n,
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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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/// Trace function for remaining energy at node.
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void
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RemainingEnergy (double oldValue, double remainingEnergy)
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{
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NS_LOG_UNCOND (Simulator::Now ().GetSeconds ()
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<< "s Current remaining energy = " << remainingEnergy << "J");
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}
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/// Trace function for total energy consumption at node.
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void
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TotalEnergy (double oldValue, double totalEnergy)
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{
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NS_LOG_UNCOND (Simulator::Now ().GetSeconds ()
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<< "s Total energy consumed by radio = " << totalEnergy << "J");
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}
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/// Trace function for the power harvested by the energy harvester.
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void
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HarvestedPower (double oldValue, double harvestedPower)
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{
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NS_LOG_UNCOND (Simulator::Now ().GetSeconds ()
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<< "s Current harvested power = " << harvestedPower << " W");
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}
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/// Trace function for the total energy harvested by the node.
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void
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TotalEnergyHarvested (double oldValue, double TotalEnergyHarvested)
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{
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NS_LOG_UNCOND (Simulator::Now ().GetSeconds ()
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<< "s Total energy harvested by harvester = "
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<< TotalEnergyHarvested << " J");
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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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std::string phyMode ("DsssRate1Mbps");
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double Prss = -80; // dBm
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uint32_t PacketSize = 200; // bytes
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bool verbose = false;
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// simulation parameters
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uint32_t numPackets = 10000; // number of packets to send
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double interval = 1; // seconds
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double startTime = 0.0; // seconds
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double distanceToRx = 100.0; // meters
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// Energy Harvester variables
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double harvestingUpdateInterval = 1; // seconds
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CommandLine cmd (__FILE__);
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cmd.AddValue ("phyMode", "Wifi Phy mode", phyMode);
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cmd.AddValue ("Prss", "Intended primary RSS (dBm)", Prss);
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cmd.AddValue ("PacketSize", "size of application packet sent", PacketSize);
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cmd.AddValue ("numPackets", "Total number of packets to send", numPackets);
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cmd.AddValue ("startTime", "Simulation start time", startTime);
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cmd.AddValue ("distanceToRx", "X-Axis distance between nodes", distanceToRx);
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cmd.AddValue ("verbose", "Turn on all device log components", verbose);
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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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// disable fragmentation for frames below 2200 bytes
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Config::SetDefault ("ns3::WifiRemoteStationManager::FragmentationThreshold",
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StringValue ("2200"));
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// turn off RTS/CTS for frames below 2200 bytes
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Config::SetDefault ("ns3::WifiRemoteStationManager::RtsCtsThreshold",
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StringValue ("2200"));
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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 (2); // create 2 nodes
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NodeContainer networkNodes;
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networkNodes.Add (c.Get (0));
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networkNodes.Add (c.Get (1));
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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 ();
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}
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wifi.SetStandard (WIFI_STANDARD_80211b);
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/** Wifi PHY **/
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/***************************************************************************/
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YansWifiPhyHelper wifiPhy;
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/** wifi channel **/
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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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// create wifi channel
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Ptr<YansWifiChannel> wifiChannelPtr = wifiChannel.Create ();
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wifiPhy.SetChannel (wifiChannelPtr);
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/** MAC layer **/
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// Add a MAC and disable rate control
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WifiMacHelper wifiMac;
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wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager", "DataMode",
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StringValue (phyMode), "ControlMode",
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StringValue (phyMode));
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// Set it to ad-hoc mode
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wifiMac.SetType ("ns3::AdhocWifiMac");
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/** install PHY + MAC **/
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NetDeviceContainer devices = wifi.Install (wifiPhy, wifiMac, networkNodes);
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/** mobility **/
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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 (2 * distanceToRx, 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 (c);
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/** Energy Model **/
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/***************************************************************************/
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/* energy source */
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BasicEnergySourceHelper basicSourceHelper;
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// configure energy source
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basicSourceHelper.Set ("BasicEnergySourceInitialEnergyJ", DoubleValue (1.0));
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// install source
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EnergySourceContainer sources = basicSourceHelper.Install (c);
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/* device energy model */
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WifiRadioEnergyModelHelper radioEnergyHelper;
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// configure radio energy model
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radioEnergyHelper.Set ("TxCurrentA", DoubleValue (0.0174));
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radioEnergyHelper.Set ("RxCurrentA", DoubleValue (0.0197));
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// install device model
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DeviceEnergyModelContainer deviceModels = radioEnergyHelper.Install (devices, sources);
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/* energy harvester */
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BasicEnergyHarvesterHelper basicHarvesterHelper;
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// configure energy harvester
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basicHarvesterHelper.Set ("PeriodicHarvestedPowerUpdateInterval", TimeValue (Seconds (harvestingUpdateInterval)));
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basicHarvesterHelper.Set ("HarvestablePower", StringValue ("ns3::UniformRandomVariable[Min=0.0|Max=0.1]"));
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// install harvester on all energy sources
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EnergyHarvesterContainer harvesters = basicHarvesterHelper.Install (sources);
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/***************************************************************************/
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/** Internet stack **/
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InternetStackHelper internet;
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internet.Install (networkNodes);
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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 (networkNodes.Get (1), tid); // node 1, Destination
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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 (networkNodes.Get (0), tid); // node 0, Source
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InetSocketAddress remote = InetSocketAddress (Ipv4Address::GetBroadcast (), 80);
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source->SetAllowBroadcast (true);
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source->Connect (remote);
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/** connect trace sources **/
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/***************************************************************************/
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// all traces are connected to node 1 (Destination)
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// energy source
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Ptr<BasicEnergySource> basicSourcePtr = DynamicCast<BasicEnergySource> (sources.Get (1));
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basicSourcePtr->TraceConnectWithoutContext ("RemainingEnergy", MakeCallback (&RemainingEnergy));
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// device energy model
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Ptr<DeviceEnergyModel> basicRadioModelPtr =
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basicSourcePtr->FindDeviceEnergyModels ("ns3::WifiRadioEnergyModel").Get (0);
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NS_ASSERT (basicRadioModelPtr != 0);
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basicRadioModelPtr->TraceConnectWithoutContext ("TotalEnergyConsumption", MakeCallback (&TotalEnergy));
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// energy harvester
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Ptr<BasicEnergyHarvester> basicHarvesterPtr = DynamicCast<BasicEnergyHarvester> (harvesters.Get (1));
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basicHarvesterPtr->TraceConnectWithoutContext ("HarvestedPower", MakeCallback (&HarvestedPower));
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basicHarvesterPtr->TraceConnectWithoutContext ("TotalEnergyHarvested", MakeCallback (&TotalEnergyHarvested));
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/***************************************************************************/
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/** simulation setup **/
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// start traffic
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Simulator::Schedule (Seconds (startTime), &GenerateTraffic, source, PacketSize,
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networkNodes.Get (0), numPackets, interPacketInterval);
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Simulator::Stop (Seconds (10.0));
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Simulator::Run ();
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for (DeviceEnergyModelContainer::Iterator iter = deviceModels.Begin (); iter != deviceModels.End (); iter ++)
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{
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double energyConsumed = (*iter)->GetTotalEnergyConsumption ();
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NS_LOG_UNCOND ("End of simulation (" << Simulator::Now ().GetSeconds ()
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<< "s) Total energy consumed by radio = " << energyConsumed << "J");
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NS_ASSERT (energyConsumed <= 1.0);
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}
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Simulator::Destroy ();
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return 0;
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}
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