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wifi: Generate in-device interference on other PHYs rather than other links

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This commit is contained in:
Stefano Avallone
2025-01-14 19:00:07 +01:00
parent 71b5f564b2
commit b8bfb85379
2 changed files with 42 additions and 29 deletions
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54
src/wifi/model/eht/eht-frame-exchange-manager.cc
View File

@@ -408,18 +408,7 @@ EhtFrameExchangeManager::ForwardPsduDown(Ptr<const WifiPsdu> psdu, WifiTxVector&
{
NS_ASSERT(m_staMac->GetEmlsrManager());
m_staMac->GetEmlsrManager()->NotifyInDeviceInterferenceStart(m_linkId, txDuration);
for (const auto linkId : m_staMac->GetLinkIds())
{
if (auto phy = m_mac->GetWifiPhy(linkId);
phy && linkId != m_linkId && m_staMac->IsEmlsrLink(linkId))
{
const auto txPower = phy->GetPower(txVector.GetTxPowerLevel()) + phy->GetTxGain();
// generate in-device interference on the other EMLSR link for the duration of this
// transmission
GenerateInDeviceInterference(linkId, txDuration, DbmToW(txPower));
}
}
GenerateInDeviceInterferenceForAll(txDuration, txVector);
}
}
@@ -497,31 +486,46 @@ EhtFrameExchangeManager::ForwardPsduMapDown(WifiConstPsduMap psduMap, WifiTxVect
{
NS_ASSERT(m_staMac->GetEmlsrManager());
m_staMac->GetEmlsrManager()->NotifyInDeviceInterferenceStart(m_linkId, txDuration);
GenerateInDeviceInterferenceForAll(txDuration, txVector);
}
}
for (const auto linkId : m_staMac->GetLinkIds())
void
EhtFrameExchangeManager::GenerateInDeviceInterferenceForAll(const Time& txDuration,
const WifiTxVector& txVector)
{
NS_LOG_FUNCTION(this << txDuration.As(Time::MS) << txVector);
NS_ASSERT(m_staMac);
NS_ASSERT(m_staMac->GetEmlsrManager());
for (const auto& phy : m_staMac->GetDevice()->GetPhys())
{
// generate in-device interference for a PHY provided that:
// - the PHY is not the one the client is using to transmit
// - either the PHY is not operating on any link or it is operating on an EMLSR link
// Interference is generated for the duration of this transmission
if (auto id = m_staMac->GetLinkForPhy(phy);
phy != m_phy && (!id || m_staMac->IsEmlsrLink(*id)))
{
if (auto phy = m_mac->GetWifiPhy(linkId);
phy && linkId != m_linkId && m_staMac->IsEmlsrLink(linkId))
{
const auto txPower = phy->GetPower(txVector.GetTxPowerLevel()) + phy->GetTxGain();
// generate in-device interference on the other EMLSR link for the duration of this
// transmission
GenerateInDeviceInterference(linkId, txDuration, DbmToW(txPower));
}
const auto txPower = phy->GetPower(txVector.GetTxPowerLevel()) + phy->GetTxGain();
GenerateInDeviceInterference(phy, txDuration, DbmToW(txPower));
}
}
}
void
EhtFrameExchangeManager::GenerateInDeviceInterference(uint8_t linkId, Time duration, Watt_u txPower)
EhtFrameExchangeManager::GenerateInDeviceInterference(Ptr<WifiPhy> phy,
Time duration,
Watt_u txPower)
{
NS_LOG_FUNCTION(this << linkId << duration.As(Time::US) << txPower);
NS_LOG_FUNCTION(this << phy << duration.As(Time::US) << txPower);
auto rxPhy = DynamicCast<SpectrumWifiPhy>(m_mac->GetWifiPhy(linkId));
auto rxPhy = DynamicCast<SpectrumWifiPhy>(phy);
if (!rxPhy)
{
NS_LOG_DEBUG("No spectrum PHY operating on link " << +linkId);
NS_LOG_DEBUG("No spectrum PHY");
return;
}

17
src/wifi/model/eht/eht-frame-exchange-manager.h
View File

@@ -266,14 +266,23 @@ class EhtFrameExchangeManager : public HeFrameExchangeManager
void SwitchToListeningOrUnblockLinks(const std::set<Mac48Address>& clients);
/**
* Generate an in-device interference of the given power on the given link for the given
* duration.
* Generate an in-device interference of the given power for the given duration for the given
* PHY.
*
* @param linkId the ID of the link on which in-device interference is generated
* @param phy the PHY for which in-device interference is generated
* @param duration the duration of the in-device interference
* @param txPower the TX power
*/
void GenerateInDeviceInterference(uint8_t linkId, Time duration, Watt_u txPower);
void GenerateInDeviceInterference(Ptr<WifiPhy> phy, Time duration, Watt_u txPower);
/**
* Generate in-device interference caused by a transmission on this link for all the other PHYs
* of this EMLSR client.
*
* @param txDuration the duration of the transmission
* @param txVector the TXVECTOR used to transmit the frame
*/
void GenerateInDeviceInterferenceForAll(const Time& txDuration, const WifiTxVector& txVector);
/**
* Update the TXOP end timer when starting a frame transmission.