F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

test PHY collisions

Browse Source
This commit is contained in:
Mathieu Lacage
2008-06-11 10:57:42 -07:00
parent 6db1f04b9c
commit 0c61007aeb
2 changed files with 185 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/contrib/wscript
View File

@@ -16,6 +16,7 @@ def build(bld):
'delay-jitter-estimation.cc',
'attribute-iterator.cc',
'config-store.cc',
'flow-id-tag.cc',
]
headers = bld.create_obj('ns3header')
@@ -25,6 +26,7 @@ def build(bld):
'gnuplot.h',
'delay-jitter-estimation.h',
'config-store.h',
'flow-id-tag.h',
]
if bld.env()['ENABLE_GTK_CONFIG_STORE']:

200
src/devices/wifi/wifi-phy-test.cc
View File

@@ -10,6 +10,7 @@
#include "ns3/simulator.h"
#include "ns3/nstime.h"
#include "ns3/command-line.h"
#include "ns3/flow-id-tag.h"
using namespace ns3;
@@ -18,6 +19,7 @@ class PsrExperiment
public:
struct Input
{
Input ();
double distance;
std::string txMode;
uint8_t txPowerLevel;
@@ -30,13 +32,10 @@ public:
};
PsrExperiment ();
static struct PsrExperiment::Input GetDefaultInput (void);
struct PsrExperiment::Output Run (struct PsrExperiment::Input input);
private:
void Send (void);
typedef Callback<void,Ptr<Packet>, double, WifiMode, enum WifiPreamble> SyncOkCallback;
void Receive (Ptr<Packet> p, double snr, WifiMode mode, enum WifiPreamble preamble);
Ptr<WifiPhy> m_tx;
struct Input m_input;
@@ -59,17 +58,13 @@ PsrExperiment::Receive (Ptr<Packet> p, double snr, WifiMode mode, enum WifiPream
PsrExperiment::PsrExperiment ()
{}
struct PsrExperiment::Input
PsrExperiment::GetDefaultInput (void)
{
struct PsrExperiment::Input input;
input.distance = 5.0;
input.packetSize = 2304;
input.nPackets = 400;
input.txPowerLevel = 0;
input.txMode = "wifia-6mbs";
return input;
}
PsrExperiment::Input::Input ()
: distance (5.0),
txMode ("wifia-6mbs"),
txPowerLevel (0),
packetSize (2304),
nPackets (400)
{}
struct PsrExperiment::Output
PsrExperiment::Run (struct PsrExperiment::Input input)
@@ -106,10 +101,146 @@ PsrExperiment::Run (struct PsrExperiment::Input input)
return m_output;
}
class CollisionExperiment
{
public:
struct Input
{
Input ();
Time interval;
double xA;
double xB;
std::string txModeA;
std::string txModeB;
uint8_t txPowerLevelA;
uint8_t txPowerLevelB;
uint32_t packetSizeA;
uint32_t packetSizeB;
uint32_t nPackets;
};
struct Output
{
uint32_t receivedA;
uint32_t receivedB;
};
CollisionExperiment ();
struct CollisionExperiment::Output Run (struct CollisionExperiment::Input input);
private:
void SendA (void) const;
void SendB (void) const;
void Receive (Ptr<Packet> p, double snr, WifiMode mode, enum WifiPreamble preamble);
Ptr<WifiPhy> m_txA;
Ptr<WifiPhy> m_txB;
uint32_t m_flowIdA;
uint32_t m_flowIdB;
struct Input m_input;
struct Output m_output;
};
void
CollisionExperiment::SendA (void) const
{
Ptr<Packet> p = Create<Packet> (m_input.packetSizeA);
p->AddTag (FlowIdTag (m_flowIdA));
m_txA->SendPacket (p, WifiMode (m_input.txModeA),
WIFI_PREAMBLE_SHORT, m_input.txPowerLevelA);
}
void
CollisionExperiment::SendB (void) const
{
Ptr<Packet> p = Create<Packet> (m_input.packetSizeB);
p->AddTag (FlowIdTag (m_flowIdB));
m_txB->SendPacket (p, WifiMode (m_input.txModeB),
WIFI_PREAMBLE_SHORT, m_input.txPowerLevelB);
}
void
CollisionExperiment::Receive (Ptr<Packet> p, double snr, WifiMode mode, enum WifiPreamble preamble)
{
FlowIdTag tag;
p->FindFirstMatchingTag (tag);
if (tag.GetFlowId () == m_flowIdA)
{
m_output.receivedA++;
}
else if (tag.GetFlowId () == m_flowIdB)
{
m_output.receivedB++;
}
}
CollisionExperiment::CollisionExperiment ()
{}
CollisionExperiment::Input::Input ()
: interval (MicroSeconds (0)),
xA (-5),
xB (5),
txModeA ("wifia-6mbs"),
txModeB ("wifia-6mbs"),
txPowerLevelA (0),
txPowerLevelB (0),
packetSizeA (2304),
packetSizeB (2304),
nPackets (400)
{}
struct CollisionExperiment::Output
CollisionExperiment::Run (struct CollisionExperiment::Input input)
{
m_output.receivedA = 0;
m_output.receivedB = 0;
m_input = input;
m_flowIdA = FlowIdTag::AllocateFlowId ();
m_flowIdB = FlowIdTag::AllocateFlowId ();
Ptr<MobilityModel> posTxA = CreateObject<StaticMobilityModel> ();
posTxA->SetPosition (Vector (input.xA, 0.0, 0.0));
Ptr<MobilityModel> posTxB = CreateObject<StaticMobilityModel> ();
posTxB->SetPosition (Vector (input.xB, 0.0, 0.0));
Ptr<MobilityModel> posRx = CreateObject<StaticMobilityModel> ();
posRx->SetPosition (Vector (0, 0.0, 0.0));
Ptr<WifiPhy> txA = CreateObject<WifiPhy> ();
Ptr<WifiPhy> txB = CreateObject<WifiPhy> ();
Ptr<WifiPhy> rx = CreateObject<WifiPhy> ();
rx->SetReceiveOkCallback (MakeCallback (&CollisionExperiment::Receive, this));
Ptr<WifiChannel> channel = CreateObject<WifiChannel> ();
channel->SetPropagationDelayModel (CreateObject<ConstantSpeedPropagationDelayModel> ());
Ptr<LogDistancePropagationLossModel> log = CreateObject<LogDistancePropagationLossModel> ();
log->SetReferenceModel (CreateObject<FriisPropagationLossModel> ());
channel->SetPropagationLossModel (log);
channel->Add (0, txA, posTxA);
channel->Add (0, txB, posTxB);
channel->Add (0, rx, posRx);
txA->SetChannel (channel);
txB->SetChannel (channel);
rx->SetChannel (channel);
for (uint32_t i = 0; i < m_input.nPackets; ++i)
{
Simulator::Schedule (Seconds (i), &CollisionExperiment::SendA, this);
}
for (uint32_t i = 0; i < m_input.nPackets; ++i)
{
Simulator::Schedule (Seconds (i) + m_input.interval, &CollisionExperiment::SendB, this);
}
m_txA = txA;
m_txB = txB;
Simulator::Run ();
return m_output;
}
static void PrintPsr (int argc, char *argv[])
{
PsrExperiment experiment;
struct PsrExperiment::Input input = experiment.GetDefaultInput ();
struct PsrExperiment::Input input;
CommandLine cmd;
cmd.AddValue ("Distance", "The distance between two phys", input.distance);
@@ -137,7 +268,7 @@ double CalcPsr (struct PsrExperiment::Output output, struct PsrExperiment::Input
static void PrintPsrVsDistance (int argc, char *argv[])
{
struct PsrExperiment::Input input = PsrExperiment::GetDefaultInput ();
struct PsrExperiment::Input input;
CommandLine cmd;
cmd.AddValue ("TxPowerLevel", "The power level index to use to send each packet", input.txPowerLevel);
cmd.AddValue ("TxMode", "The mode to use to send each packet", input.txMode);
@@ -189,7 +320,7 @@ static void PrintPsrVsDistance (int argc, char *argv[])
static void PrintSizeVsRange (int argc, char *argv[])
{
double targetPsr = 0.05;
struct PsrExperiment::Input input = PsrExperiment::GetDefaultInput ();
struct PsrExperiment::Input input;
CommandLine cmd;
cmd.AddValue ("TxPowerLevel", "The power level index to use to send each packet", input.txPowerLevel);
cmd.AddValue ("TxMode", "The mode to use to send each packet", input.txMode);
@@ -222,6 +353,36 @@ static void PrintSizeVsRange (int argc, char *argv[])
}
}
static void PrintPsrVsCollisionInterval (int argc, char *argv[])
{
CollisionExperiment::Input input;
input.nPackets = 100;
CommandLine cmd;
cmd.AddValue ("NPackets", "The number of packets to send for each transmitter", input.nPackets);
cmd.AddValue ("xA", "the position of transmitter A", input.xA);
cmd.AddValue ("xB", "the position of transmitter B", input.xB);
for (uint32_t i = 0; i < 100; i += 1)
{
CollisionExperiment experiment;
CollisionExperiment::Output output;
input.interval = MicroSeconds (i);
output = experiment.Run (input);
double perA = (output.receivedA+0.0) / (input.nPackets+0.0);
double perB = (output.receivedB+0.0) / (input.nPackets+0.0);
std::cout << i << " " << perA << " " << perB << std::endl;
}
for (uint32_t i = 100; i < 4000; i += 50)
{
CollisionExperiment experiment;
CollisionExperiment::Output output;
input.interval = MicroSeconds (i);
output = experiment.Run (input);
double perA = (output.receivedA+0.0) / (input.nPackets+0.0);
double perB = (output.receivedB+0.0) / (input.nPackets+0.0);
std::cout << i << " " << perA << " " << perB << std::endl;
}
}
int main (int argc, char *argv[])
@@ -232,6 +393,7 @@ int main (int argc, char *argv[])
<< "Psr "
<< "SizeVsRange "
<< "PsrVsDistance "
<< "PsrVsCollisionInterval "
<< std::endl;
return -1;
}
@@ -251,6 +413,10 @@ int main (int argc, char *argv[])
{
PrintPsrVsDistance (argc, argv);
}
else if (type == "PsrVsCollisionInterval")
{
PrintPsrVsCollisionInterval (argc, argv);
}
return 0;
}