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wifi: Extend tests for OBSS_PD spatial reuse

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This commit is contained in:
Sébastien Deronne
2019-05-01 13:21:48 +02:00
parent 6626b976ca
commit 5826c6d2c2
1 changed files with 122 additions and 76 deletions
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198
src/wifi/test/inter-bss-test-suite.cc
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@@ -27,6 +27,7 @@
#include "ns3/pointer.h"
#include "ns3/config.h"
#include "ns3/ssid.h"
#include "ns3/rng-seed-manager.h"
#include "ns3/mobility-helper.h"
#include "ns3/wifi-net-device.h"
#include "ns3/spectrum-wifi-helper.h"
@@ -57,18 +58,20 @@ ConvertContextToNodeId (std::string context)
* This test case tests the transmission of inter-BSS cases
* and verify behavior of 11ax OBSS_PD spatial reuse.
*
* The topology for this test case is made of two networks, each with one AP and one STA:
* The topology for this test case is made of three networks, each with one AP and one STA:
*
* STA1 --d1-- AP1 --d2-- AP2 --d3-- STA2
* RX1 TX1 TX2 RX2
* AP --d1-- STA1 --d2-- AP2 --d3-- STA2 --d4-- AP3 --d5-- STA3
* TX1 RX1 TX2 RX2 TX3 RX3
*
* Main parameters:
* OBSS_PD level = -72dbm
* Received Power by TX1 from TX2 = [-62dbm, -82dbm]
* Received SINR by RX1 from TX1 > 3dB (enough to pass MCS0 reception)
* Received SINR by RX2 from TX2 > 3dB (enough to pass MCS0 reception)
* Received SINR by RX3 from TX3 > 3dB (enough to pass MCS0 reception)
* TX1/RX1 BSS Color = 1
* TX2/RX2 transmission PPDU BSS Color = [2 0]
* TX3/RX3 BSS color = 3 (BSS 3 only used to test some corner cases)
* PHY = 11ax, MCS 0, 80MHz
*/
@@ -93,8 +96,10 @@ private:
* \param d1 distance d1 (in meters)
* \param d2 distance d2 (in meters)
* \param d3 distance d3 (in meters)
* \param d4 distance d4 (in meters)
* \param d5 distance d5 (in meters)
*/
Ptr<ListPositionAllocator> AllocatePositions (double d1, double d2, double d3);
Ptr<ListPositionAllocator> AllocatePositions (double d1, double d2, double d3, double d4, double d5);
void SetExpectedTxPower (double txPowerDbm);
@@ -150,6 +155,7 @@ private:
unsigned int m_payloadSize1; ///< size in bytes of packet payload in BSS 1
unsigned int m_payloadSize2; ///< size in bytes of packet payload in BSS 2
unsigned int m_payloadSize3; ///< size in bytes of packet payload in BSS 3
NetDeviceContainer m_staDevices;
NetDeviceContainer m_apDevices;
@@ -161,6 +167,7 @@ private:
uint8_t m_bssColor1;
uint8_t m_bssColor2;
uint8_t m_bssColor3;
};
TestInterBssConstantObssPdAlgo::TestInterBssConstantObssPdAlgo ()
@@ -175,24 +182,27 @@ TestInterBssConstantObssPdAlgo::TestInterBssConstantObssPdAlgo ()
m_numAp2PacketsReceived (0),
m_payloadSize1 (1000),
m_payloadSize2 (1500),
m_payloadSize3 (2000),
m_txPowerDbm (15),
m_obssPdLevelDbm (-72),
m_obssRxPowerDbm (-82),
m_expectedTxPowerDbm (15),
m_bssColor1 (1),
m_bssColor2 (2)
m_bssColor2 (2),
m_bssColor3 (3)
{
}
Ptr<ListPositionAllocator>
TestInterBssConstantObssPdAlgo::AllocatePositions (double d1, double d2, double d3)
TestInterBssConstantObssPdAlgo::AllocatePositions (double d1, double d2, double d3, double d4, double d5)
{
Ptr<ListPositionAllocator> positionAlloc = CreateObject<ListPositionAllocator> ();
positionAlloc->Add (Vector (d1, 0.0, 0.0)); // AP1
positionAlloc->Add (Vector (0.0, 0.0, 0.0)); // AP1
positionAlloc->Add (Vector (d1 + d2, 0.0, 0.0)); // AP2
positionAlloc->Add (Vector (0.0, 0.0, 0.0)); // STA1
positionAlloc->Add (Vector (d1 + d2 + d3 + d4, 0.0, 0.0)); // AP3
positionAlloc->Add (Vector (d1, 0.0, 0.0)); // STA1
positionAlloc->Add (Vector (d1 + d2 + d3, 0.0, 0.0)); // STA2
positionAlloc->Add (Vector (d1 + d2 + d3 + d4 + d5, 0.0, 0.0)); // STA3
return positionAlloc;
}
@@ -201,61 +211,86 @@ TestInterBssConstantObssPdAlgo::SetupSimulation ()
{
Ptr<WifiNetDevice> ap_device1 = DynamicCast<WifiNetDevice> (m_apDevices.Get (0));
Ptr<WifiNetDevice> ap_device2 = DynamicCast<WifiNetDevice> (m_apDevices.Get (1));
Ptr<WifiNetDevice> ap_device3 = DynamicCast<WifiNetDevice> (m_apDevices.Get (2));
Ptr<WifiNetDevice> sta_device1 = DynamicCast<WifiNetDevice> (m_staDevices.Get (0));
Ptr<WifiNetDevice> sta_device2 = DynamicCast<WifiNetDevice> (m_staDevices.Get (1));
Ptr<WifiNetDevice> sta_device3 = DynamicCast<WifiNetDevice> (m_staDevices.Get (2));
bool expectPhyReset = (m_bssColor1 != 0) && (m_bssColor2 != 0) && (m_obssPdLevelDbm >= m_obssRxPowerDbm);
// AP1 sends packet #1 after 0.25s. The purpose is to have addba handshake established.
// In order to have all addba handshakes established, each AP and STA sends a packet.
Simulator::Schedule (Seconds (0.25), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device1, sta_device1, m_payloadSize1);
// STA1 sends packet #2 after 0.5s. The purpose is to have addba handshake established.
Simulator::Schedule (Seconds (0.5), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device1, ap_device1, m_payloadSize1);
// AP2 sends packet #3 after 0.75s. The purpose is to have addba handshake established.
Simulator::Schedule (Seconds (0.75), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
// STA2 sends packet #4 after 1.0s. The purpose is to have addba handshake established.
Simulator::Schedule (Seconds (1), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device2, ap_device2, m_payloadSize2);
Simulator::Schedule (Seconds (1.25), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device3, sta_device3, m_payloadSize3);
Simulator::Schedule (Seconds (1.5), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device3, ap_device3, m_payloadSize3);
// AP2 sends packet #5 0.5s later.
Simulator::Schedule (Seconds (1.5), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (1), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device2, WifiPhyState::TX);
// We test PHY state and verify whether a CCA reset did occur.
// AP2 sends a packet 0.5s later.
Simulator::Schedule (Seconds (2.0), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (1), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device2, WifiPhyState::TX);
// All other PHYs should have stay idle until 4us (preamble detection time).
Simulator::Schedule (Seconds (1.5) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, WifiPhyState::IDLE);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::IDLE);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::IDLE);
// All PHYs should be reeiving the PHY header if preamble has been detected (always the case in this test).
Simulator::Schedule (Seconds (1.5) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, WifiPhyState::RX);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::RX);
// PHYs of AP1 and STA1 should be idle if it was reset by OBSS PD, otherwise they should be receiving
Simulator::Schedule (Seconds (1.5) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, expectPhyReset ? WifiPhyState::IDLE : WifiPhyState::RX);
Simulator::Schedule (Seconds (1.5) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, expectPhyReset ? WifiPhyState::IDLE : WifiPhyState::RX);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, WifiPhyState::IDLE);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::IDLE);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (2), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::IDLE);
// All PHYs should be receiving the PHY header if preamble has been detected (always the case in this test).
Simulator::Schedule (Seconds (2.0) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, WifiPhyState::RX);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (10), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::RX);
// PHYs of AP1 and STA1 should be idle if it was reset by OBSS_PD SR, otherwise they should be receiving.
Simulator::Schedule (Seconds (2.0) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, expectPhyReset ? WifiPhyState::IDLE : WifiPhyState::RX);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, expectPhyReset ? WifiPhyState::IDLE : WifiPhyState::RX);
// STA2 should be receiving
Simulator::Schedule (Seconds (1.5) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
Simulator::Schedule (Seconds (2.0) + MicroSeconds (50), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
// AP2 sends another packet #6 0.1s later.
Simulator::Schedule (Seconds (1.6), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
// STA1 sends a packet #7 100us later. Even though AP2 is still transmitting, STA1 can transmit simultaneously if it's PHY was reset by OBSS PD SR.
Simulator::Schedule (Seconds (1.6) + MicroSeconds (100), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device1, ap_device1, m_payloadSize1);
// We test whether two networks can transmit simultaneously, and whether transmit power restrictions are applied.
// AP2 sends another packet 0.1s later.
Simulator::Schedule (Seconds (2.1), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
// STA1 sends a packet 100us later. Even though AP2 is still transmitting, STA1 can transmit simultaneously if it's PHY was reset by OBSS_PD SR.
Simulator::Schedule (Seconds (2.1) + MicroSeconds (100), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device1, ap_device1, m_payloadSize1);
if (expectPhyReset)
{
// In this case, we check the TX power is restricted
// In this case, we check the TX power is restricted (and set the expected value slightly before transmission should occur)
double expectedTxPower = std::min (m_txPowerDbm, 21 - (m_obssPdLevelDbm + 82));
Simulator::Schedule (Seconds (1.6) + MicroSeconds (100), &TestInterBssConstantObssPdAlgo::SetExpectedTxPower, this, expectedTxPower);
Simulator::Schedule (Seconds (2.1) + MicroSeconds (99), &TestInterBssConstantObssPdAlgo::SetExpectedTxPower, this, expectedTxPower);
}
// Check simultaneous transmissions
Simulator::Schedule (Seconds (1.6) + MicroSeconds (350), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, expectPhyReset ? WifiPhyState::TX : WifiPhyState::RX);
Simulator::Schedule (Seconds (1.6) + MicroSeconds (350), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::RX);
Simulator::Schedule (Seconds (1.6) + MicroSeconds (350), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
Simulator::Schedule (Seconds (1.6) + MicroSeconds (350), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device2, WifiPhyState::TX);
Simulator::Schedule (Seconds (2.1) + MicroSeconds (105), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device1, expectPhyReset ? WifiPhyState::TX : WifiPhyState::RX);
Simulator::Schedule (Seconds (2.1) + MicroSeconds (105), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device1, WifiPhyState::RX);
Simulator::Schedule (Seconds (2.1) + MicroSeconds (105), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, sta_device2, WifiPhyState::RX);
Simulator::Schedule (Seconds (2.1) + MicroSeconds (105), &TestInterBssConstantObssPdAlgo::CheckPhyState, this, ap_device2, WifiPhyState::TX);
// AP2 sends another packet #8 0.1s later.
Simulator::Schedule (Seconds (1.7), &TestInterBssConstantObssPdAlgo::SetExpectedTxPower, this, m_txPowerDbm);
Simulator::Schedule (Seconds (1.7), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
// STA1 sends a packet #9 0.1S later. Power retriction should not be applied.
Simulator::Schedule (Seconds (1.8), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device1, ap_device1, m_payloadSize1);
// Verify transmit power restrictions are not applied if access to the channel is requested after ignored OBSS transmissions.
Simulator::Stop (Seconds (1.9));
Simulator::Schedule (Seconds (2.2), &TestInterBssConstantObssPdAlgo::SetExpectedTxPower, this, m_txPowerDbm);
// AP2 sends another packet 0.1s later. Power retriction should not be applied.
Simulator::Schedule (Seconds (2.2), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2);
// STA1 sends a packet 0.1S later. Power retriction should not be applied.
Simulator::Schedule (Seconds (2.3), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device1, ap_device1, m_payloadSize1);
// Verify a scenario that involves 3 networks in order to verify corner cases for transmit power restrictions.
// First, there is a transmission on network 2 from STA to AP, followed by a response from AP to STA.
// During that time, the STA on network 1 has a packet to send and request access to the channel.
// If a CCA reset occured, it starts deferring while transmissions are ongoing from network 2.
// Before its backoff expires, a transmission on networks 3 occurs, also eventually triggering another CCA reset (depending on the scenario that is being run).
// This test checks whether this sequence preserves transmit power restrictions if CCA resets occured, since STA 1 has been defering during ignored OBSS transmissions.
Simulator::Schedule (Seconds (2.4), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, sta_device2, ap_device2, m_payloadSize2 / 10);
Simulator::Schedule (Seconds (2.4) + MicroSeconds (5), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device2, sta_device2, m_payloadSize2 / 10);
Simulator::Schedule (Seconds (2.4) + MicroSeconds (55), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device1, sta_device1, m_payloadSize1 / 10);
Simulator::Schedule (Seconds (2.4) + MicroSeconds (105), &TestInterBssConstantObssPdAlgo::SendOnePacket, this, ap_device3, sta_device3, m_payloadSize3 / 10);
if (expectPhyReset)
{
// In this case, we check the TX power is restricted (and set the expected value slightly before transmission should occur)
double expectedTxPower = std::min (m_txPowerDbm, 21 - (m_obssPdLevelDbm + 82));
Simulator::Schedule (Seconds (2.4) + MicroSeconds (300), &TestInterBssConstantObssPdAlgo::SetExpectedTxPower, this, expectedTxPower);
}
Simulator::Stop (Seconds (2.5));
}
void
@@ -276,14 +311,13 @@ void
TestInterBssConstantObssPdAlgo::CheckResults ()
{
NS_TEST_ASSERT_MSG_EQ (m_numSta1PacketsSent, 3, "The number of packets sent by STA1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta2PacketsSent, 1, "The number of packets sent by STA2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp1PacketsSent, 1, "The number of packets sent by AP1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp2PacketsSent, 4, "The number of packets sent by AP2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta1PacketsReceived, 1, "The number of packets received by STA1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta2PacketsReceived, 4, "The number of packets received by STA2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta2PacketsSent, 2, "The number of packets sent by STA2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp1PacketsSent, 2, "The number of packets sent by AP1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp2PacketsSent, 5, "The number of packets sent by AP2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta1PacketsReceived, 2, "The number of packets received by STA1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numSta2PacketsReceived, 5, "The number of packets received by STA2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp1PacketsReceived, 3, "The number of packets received by AP1 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp2PacketsReceived, 1, "The number of packets received by AP2 is not correct!");
NS_TEST_ASSERT_MSG_EQ (m_numAp2PacketsReceived, 2, "The number of packets received by AP2 is not correct!");
}
void
@@ -291,22 +325,22 @@ TestInterBssConstantObssPdAlgo::NotifyPhyTxBegin (std::string context, Ptr<const
{
uint32_t idx = ConvertContextToNodeId (context);
uint32_t pktSize = p->GetSize () - 38;
if ((idx == 0) && (pktSize == m_payloadSize1))
if ((idx == 0) && ((pktSize == m_payloadSize1) || (pktSize == (m_payloadSize1 / 10))))
{
m_numSta1PacketsSent++;
NS_TEST_EXPECT_MSG_EQ (TestDoubleIsEqual (WToDbm (txPowerW), m_expectedTxPowerDbm, 1e-12), true, "Tx power is not correct!");
}
else if ((idx == 1) && (pktSize == m_payloadSize2))
else if ((idx == 1) && ((pktSize == m_payloadSize2) || (pktSize == (m_payloadSize2 / 10))))
{
m_numSta2PacketsSent++;
NS_TEST_EXPECT_MSG_EQ (TestDoubleIsEqual (WToDbm (txPowerW), m_expectedTxPowerDbm, 1e-12), true, "Tx power is not correct!");
}
else if ((idx == 2) && (pktSize == m_payloadSize1))
else if ((idx == 3) && ((pktSize == m_payloadSize1) || (pktSize == (m_payloadSize1 / 10))))
{
m_numAp1PacketsSent++;
NS_TEST_EXPECT_MSG_EQ (TestDoubleIsEqual (WToDbm (txPowerW), m_expectedTxPowerDbm, 1e-12), true, "Tx power is not correct!");
}
else if ((idx == 3) && (pktSize == m_payloadSize2))
else if ((idx == 4) && ((pktSize == m_payloadSize2) || (pktSize == (m_payloadSize2 / 10))))
{
m_numAp2PacketsSent++;
NS_TEST_EXPECT_MSG_EQ (TestDoubleIsEqual (WToDbm (txPowerW), m_expectedTxPowerDbm, 1e-12), true, "Tx power is not correct!");
@@ -318,19 +352,19 @@ TestInterBssConstantObssPdAlgo::NotifyPhyRxEnd (std::string context, Ptr<const P
{
uint32_t idx = ConvertContextToNodeId (context);
uint32_t pktSize = p->GetSize () - 38;
if ((idx == 0) && (pktSize == m_payloadSize1))
if ((idx == 0) && ((pktSize == m_payloadSize1) || (pktSize == (m_payloadSize1 / 10))))
{
m_numSta1PacketsReceived++;
}
else if ((idx == 1) && (pktSize == m_payloadSize2))
else if ((idx == 1) && ((pktSize == m_payloadSize2) || (pktSize == (m_payloadSize2 / 10))))
{
m_numSta2PacketsReceived++;
}
else if ((idx == 2) && (pktSize == m_payloadSize1))
else if ((idx == 3) && ((pktSize == m_payloadSize1) || (pktSize == (m_payloadSize1 / 10))))
{
m_numAp1PacketsReceived++;
}
else if ((idx == 3) && (pktSize == m_payloadSize2))
else if ((idx == 4) && ((pktSize == m_payloadSize2) || (pktSize == (m_payloadSize2 / 10))))
{
m_numAp2PacketsReceived++;
}
@@ -364,18 +398,22 @@ TestInterBssConstantObssPdAlgo::CheckPhyState (Ptr<WifiNetDevice> device, WifiPh
void
TestInterBssConstantObssPdAlgo::RunOne (void)
{
ResetResults ();
RngSeedManager::SetSeed (1);
RngSeedManager::SetRun (1);
int64_t streamNumber = 2;
Config::Set ("/NodeList/*/DeviceList/*/$ns3::WifiNetDevice/Mac/BE_MaxAmpduSize", UintegerValue (0));
ResetResults ();
NodeContainer wifiStaNodes;
wifiStaNodes.Create (2);
wifiStaNodes.Create (3);
NodeContainer wifiApNodes;
wifiApNodes.Create (2);
wifiApNodes.Create (3);
Ptr<MatrixPropagationLossModel> lossModel = CreateObject<MatrixPropagationLossModel> ();
lossModel->SetDefaultLoss (200); // set default loss to 200 dB (no link)
lossModel->SetDefaultLoss (m_txPowerDbm - m_obssRxPowerDbm); //Force received RSSI to be equal to m_obssRxPowerDbm
SpectrumWifiPhyHelper phy = SpectrumWifiPhyHelper::Default ();
Ptr<MultiModelSpectrumChannel> channel = CreateObject<MultiModelSpectrumChannel> ();
@@ -388,7 +426,7 @@ TestInterBssConstantObssPdAlgo::RunOne (void)
WifiHelper wifi;
wifi.SetStandard (WIFI_PHY_STANDARD_80211ax_5GHZ);
wifi.SetRemoteStationManager ("ns3::ConstantRateWifiManager",
"DataMode", StringValue ("HeMcs0"),
"DataMode", StringValue ("HeMcs5"),
"ControlMode", StringValue ("HeMcs0"));
wifi.SetObssPdAlgorithm ("ns3::ConstantObssPdAlgorithm",
@@ -400,10 +438,16 @@ TestInterBssConstantObssPdAlgo::RunOne (void)
"Ssid", SsidValue (ssid));
m_staDevices = wifi.Install (phy, mac, wifiStaNodes);
// Assign fixed streams to random variables in use
wifi.AssignStreams (m_staDevices, streamNumber);
mac.SetType ("ns3::ApWifiMac",
"Ssid", SsidValue (ssid));
m_apDevices = wifi.Install (phy, mac, wifiApNodes);
// Assign fixed streams to random variables in use
wifi.AssignStreams (m_apDevices, streamNumber);
for (uint32_t i = 0; i < m_apDevices.GetN (); i++)
{
Ptr<WifiNetDevice> device = DynamicCast<WifiNetDevice> (m_apDevices.Get (i));
@@ -412,19 +456,18 @@ TestInterBssConstantObssPdAlgo::RunOne (void)
{
heConfiguration->SetAttribute ("BssColor", UintegerValue (m_bssColor1));
}
else
else if (i == 1)
{
heConfiguration->SetAttribute ("BssColor", UintegerValue (m_bssColor2));
}
}
for (uint32_t i = 0; i < m_staDevices.GetN (); i++)
{
Ptr<WifiNetDevice> device = DynamicCast<WifiNetDevice> (m_staDevices.Get (i));
Ptr<HeConfiguration> heConfiguration = device->GetHeConfiguration ();
else
{
heConfiguration->SetAttribute ("BssColor", UintegerValue (m_bssColor3));
}
}
MobilityHelper mobility;
Ptr<ListPositionAllocator> positionAlloc = AllocatePositions (10, 50, 10); //distances do not really matter since we set RSSI per TX-RX pair to have full control
Ptr<ListPositionAllocator> positionAlloc = AllocatePositions (10, 50, 10, 50, 10); //distances do not really matter since we set RSSI per TX-RX pair to have full control
mobility.SetPositionAllocator (positionAlloc);
mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
mobility.Install (wifiApNodes);
@@ -432,9 +475,7 @@ TestInterBssConstantObssPdAlgo::RunOne (void)
lossModel->SetLoss (wifiStaNodes.Get (0)->GetObject<MobilityModel> (), wifiApNodes.Get (0)->GetObject<MobilityModel> (), m_txPowerDbm + 30); //Low attenuation for IBSS transmissions
lossModel->SetLoss (wifiStaNodes.Get (1)->GetObject<MobilityModel> (), wifiApNodes.Get (1)->GetObject<MobilityModel> (), m_txPowerDbm + 30); //Low attenuation for IBSS transmissions
lossModel->SetLoss (wifiStaNodes.Get (1)->GetObject<MobilityModel> (), wifiApNodes.Get (0)->GetObject<MobilityModel> (), m_txPowerDbm - m_obssRxPowerDbm); //Force received RSSI to be equal to m_obssRxPowerDbm
lossModel->SetLoss (wifiStaNodes.Get (0)->GetObject<MobilityModel> (), wifiApNodes.Get (1)->GetObject<MobilityModel> (), m_txPowerDbm - m_obssRxPowerDbm); //Force received RSSI to be equal to m_obssRxPowerDbm
lossModel->SetLoss (wifiApNodes.Get (0)->GetObject<MobilityModel> (), wifiApNodes.Get (1)->GetObject<MobilityModel> (), m_txPowerDbm - m_obssRxPowerDbm); //Force received RSSI to be equal to m_obssRxPowerDbm
lossModel->SetLoss (wifiStaNodes.Get (2)->GetObject<MobilityModel> (), wifiApNodes.Get (2)->GetObject<MobilityModel> (), m_txPowerDbm + 30); //Low attenuation for IBSS transmissions
Config::Connect ("/NodeList/*/DeviceList/*/$ns3::WifiNetDevice/Phy/PhyTxBegin", MakeCallback (&TestInterBssConstantObssPdAlgo::NotifyPhyTxBegin, this));
Config::Connect ("/NodeList/*/DeviceList/*/$ns3::WifiNetDevice/Phy/PhyRxEnd", MakeCallback (&TestInterBssConstantObssPdAlgo::NotifyPhyRxEnd, this));
@@ -455,6 +496,7 @@ TestInterBssConstantObssPdAlgo::DoRun (void)
m_obssRxPowerDbm = -82;
m_bssColor1 = 1;
m_bssColor2 = 2;
m_bssColor3 = 3;
RunOne ();
//Test case 2: CCA CS Threshold < m_obssPdLevelDbm < m_obssRxPowerDbm
@@ -462,6 +504,7 @@ TestInterBssConstantObssPdAlgo::DoRun (void)
m_obssRxPowerDbm = -62;
m_bssColor1 = 1;
m_bssColor2 = 2;
m_bssColor3 = 3;
RunOne ();
//Test case 3: CCA CS Threshold = < m_obssPdLevelDbm = m_obssRxPowerDbm
@@ -469,13 +512,15 @@ TestInterBssConstantObssPdAlgo::DoRun (void)
m_obssRxPowerDbm = -72;
m_bssColor1 = 1;
m_bssColor2 = 2;
m_bssColor3 = 3;
RunOne ();
//Test case 4: CCA CS Threshold = m_obssRxPowerDbm < m_obssPdLevelDbm with BSS color 2 set to 0
//Test case 4: CCA CS Threshold = m_obssRxPowerDbm < m_obssPdLevelDbm with BSS color 2 and 3 set to 0
m_obssPdLevelDbm = -72;
m_obssRxPowerDbm = -82;
m_bssColor1 = 1;
m_bssColor2 = 0;
m_bssColor3 = 0;
RunOne ();
//Test case 5: CCA CS Threshold = m_obssRxPowerDbm < m_obssPdLevelDbm with BSS color 1 set to 0
@@ -483,6 +528,7 @@ TestInterBssConstantObssPdAlgo::DoRun (void)
m_obssRxPowerDbm = -82;
m_bssColor1 = 0;
m_bssColor2 = 2;
m_bssColor3 = 3;
RunOne ();
}