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Lines 264-270
IdealWifiManager::DoGetDataTxVector (WifiRemoteStation *st)
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| 264 |
std::vector<WifiTxVector> candidateTxVectors; |
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std::vector<WifiTxVector> candidateTxVectors; |
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WifiTxVector txVector; |
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WifiTxVector txVector; |
| 266 |
WifiMode mode; |
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WifiMode mode; |
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uint8_t nss = 1; |
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uint8_t nss; |
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uint8_t selectedNss = 1; |
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txVector.SetChannelWidth (GetPhy ()->GetChannelWidth ()); |
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txVector.SetChannelWidth (GetPhy ()->GetChannelWidth ()); |
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txVector.SetGuardInterval (GetPhy ()->GetShortGuardInterval () ? 400 : 800); |
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txVector.SetGuardInterval (GetPhy ()->GetShortGuardInterval () ? 400 : 800); |
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if (station->m_lastSnrObserved == station->m_lastSnrCached) |
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if (station->m_lastSnrObserved == station->m_lastSnrCached) |
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Lines 272-278
IdealWifiManager::DoGetDataTxVector (WifiRemoteStation *st)
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| 272 |
// SNR has not changed, so skip the search and use the last |
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// SNR has not changed, so skip the search and use the last |
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// mode selected |
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// mode selected |
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maxMode = station->m_lastMode; |
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maxMode = station->m_lastMode; |
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nss = station->m_nss; |
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selectedNss = station->m_nss; |
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NS_LOG_DEBUG ("Using cached mode = " << maxMode.GetUniqueName () << |
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NS_LOG_DEBUG ("Using cached mode = " << maxMode.GetUniqueName () << |
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" last snr observed " << station->m_lastSnrObserved << |
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" last snr observed " << station->m_lastSnrObserved << |
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" cached " << station->m_lastSnrCached); |
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" cached " << station->m_lastSnrCached); |
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Lines 326-343
IdealWifiManager::DoGetDataTxVector (WifiRemoteStation *st)
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| 326 |
station->m_lastSnrObserved); |
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station->m_lastSnrObserved); |
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maxThreshold = threshold; |
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maxThreshold = threshold; |
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maxMode = mode; |
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maxMode = mode; |
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selectedNss = nss; |
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} |
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} |
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} |
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} |
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} |
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} |
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else |
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else |
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{ |
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{ |
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// Non-HT selection |
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// Non-HT selection |
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nss = 1; |
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selectedNss = 1; |
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for (uint32_t i = 0; i < GetNSupported (station); i++) |
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for (uint32_t i = 0; i < GetNSupported (station); i++) |
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{ |
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{ |
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mode = GetSupported (station, i); |
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mode = GetSupported (station, i); |
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txVector.SetMode (mode); |
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txVector.SetMode (mode); |
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txVector.SetNss (nss); |
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txVector.SetNss (selectedNss); |
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txVector.SetChannelWidth (GetChannelWidthForMode (mode)); |
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txVector.SetChannelWidth (GetChannelWidthForMode (mode)); |
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double threshold = GetSnrThreshold (txVector); |
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double threshold = GetSnrThreshold (txVector); |
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NS_LOG_DEBUG ("mode = " << mode.GetUniqueName () << |
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NS_LOG_DEBUG ("mode = " << mode.GetUniqueName () << |
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Lines 358-373
IdealWifiManager::DoGetDataTxVector (WifiRemoteStation *st)
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| 358 |
NS_LOG_DEBUG ("Updating cached values for station to " << maxMode.GetUniqueName () << " snr " << station->m_lastSnrObserved); |
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NS_LOG_DEBUG ("Updating cached values for station to " << maxMode.GetUniqueName () << " snr " << station->m_lastSnrObserved); |
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station->m_lastSnrCached = station->m_lastSnrObserved; |
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station->m_lastSnrCached = station->m_lastSnrObserved; |
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station->m_lastMode = maxMode; |
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station->m_lastMode = maxMode; |
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station->m_nss = nss; |
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station->m_nss = selectedNss; |
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} |
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} |
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uint8_t channelWidth = GetChannelWidth (station); |
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uint8_t channelWidth = GetChannelWidth (station); |
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NS_LOG_DEBUG ("Found maxMode: " << maxMode << " channelWidth: " << (uint16_t) channelWidth); |
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NS_LOG_DEBUG ("Found maxMode: " << maxMode << " channelWidth: " << (uint16_t) channelWidth); |
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if (m_currentRate != maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), nss)) |
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if (m_currentRate != maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), selectedNss)) |
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{ |
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{ |
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NS_LOG_DEBUG ("New datarate: " << maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), nss)); |
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NS_LOG_DEBUG ("New datarate: " << maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), selectedNss)); |
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m_currentRate = maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), nss); |
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m_currentRate = maxMode.GetDataRate (channelWidth, GetPhy ()->GetShortGuardInterval (), selectedNss); |
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} |
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} |
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return WifiTxVector (maxMode, GetDefaultTxPowerLevel (), GetLongRetryCount (station), GetPreambleForTransmission (maxMode, GetAddress (station)), false, GetNumberOfAntennas (), nss, 0, channelWidth, GetAggregation (station), false); |
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return WifiTxVector (maxMode, GetDefaultTxPowerLevel (), GetLongRetryCount (station), GetPreambleForTransmission (maxMode, GetAddress (station)), false, GetNumberOfAntennas (), selectedNss, 0, channelWidth, GetAggregation (station), false); |
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} |
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} |
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| 373 |
WifiTxVector |
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WifiTxVector |