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| 154 |
RrpaaWifiManager::SetupPhy (const Ptr<WifiPhy> phy) |
154 |
RrpaaWifiManager::SetupPhy (const Ptr<WifiPhy> phy) |
| 155 |
{ |
155 |
{ |
| 156 |
NS_LOG_FUNCTION (this); |
156 |
NS_LOG_FUNCTION (this); |
| 157 |
m_minPower = phy->GetTxPowerStart (); |
157 |
m_nPowerLevels = phy->GetNTxPower (); |
| 158 |
m_maxPower = phy->GetTxPowerEnd (); |
158 |
m_maxPowerLevel = m_nPowerLevels - 1; |
| 159 |
m_nPower = m_maxPower - m_minPower + 1; |
159 |
m_minPowerLevel = 0; |
| 160 |
uint32_t nModes = phy->GetNModes (); |
160 |
uint32_t nModes = phy->GetNModes (); |
| 161 |
for (uint32_t i = 0; i < nModes; i++) |
161 |
for (uint32_t i = 0; i < nModes; i++) |
| 162 |
{ |
162 |
{ |
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Lines 246-265
RrpaaWifiManager::CheckInit (RrpaaWifiRemoteStation *station)
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Link Here
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| 246 |
//Initialize at minimal rate and maximal power. |
246 |
//Initialize at minimal rate and maximal power. |
| 247 |
station->m_prevRateIndex = 0; |
247 |
station->m_prevRateIndex = 0; |
| 248 |
station->m_rateIndex = 0; |
248 |
station->m_rateIndex = 0; |
| 249 |
station->m_prevPowerLevel = m_maxPower; |
249 |
station->m_prevPowerLevel = m_maxPowerLevel; |
| 250 |
station->m_powerLevel = m_maxPower; |
250 |
station->m_powerLevel = m_maxPowerLevel; |
| 251 |
WifiMode mode = GetSupported (station, 0); |
251 |
WifiMode mode = GetSupported (station, 0); |
| 252 |
uint8_t channelWidth = GetChannelWidth (station); |
252 |
uint8_t channelWidth = GetChannelWidth (station); |
| 253 |
DataRate rate = DataRate (mode.GetDataRate (channelWidth)); |
253 |
DataRate rate = DataRate (mode.GetDataRate (channelWidth)); |
| 254 |
double power = GetPhy ()->GetPowerDbm (m_maxPower); |
254 |
double power = GetPhy ()->GetPowerDbm (station->m_powerLevel); |
| 255 |
m_rateChange (rate, rate, station->m_state->m_address); |
255 |
m_rateChange (rate, rate, station->m_state->m_address); |
| 256 |
m_powerChange (power, power, station->m_state->m_address); |
256 |
m_powerChange (power, power, station->m_state->m_address); |
| 257 |
|
257 |
|
| 258 |
station->m_pdTable = RrpaaProbabilitiesTable (station->m_nRate, std::vector<double> (m_nPower)); |
258 |
station->m_pdTable = RrpaaProbabilitiesTable (station->m_nRate, std::vector<double> (m_nPowerLevels)); |
| 259 |
NS_LOG_DEBUG ("Initializing pdTable"); |
259 |
NS_LOG_DEBUG ("Initializing pdTable"); |
| 260 |
for (uint32_t i = 0; i < station->m_nRate; i++) |
260 |
for (uint32_t i = 0; i < station->m_nRate; i++) |
| 261 |
{ |
261 |
{ |
| 262 |
for (uint8_t j = 0; j < m_nPower; j++) |
262 |
for (uint8_t j = 0; j < m_nPowerLevels; j++) |
| 263 |
{ |
263 |
{ |
| 264 |
station->m_pdTable[i][j] = 1; |
264 |
station->m_pdTable[i][j] = 1; |
| 265 |
} |
265 |
} |
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Lines 470-476
RrpaaWifiManager::RunBasicAlgorithm (RrpaaWifiRemoteStation *station)
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Link Here
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| 470 |
NS_LOG_DEBUG ("Worst loss prob= " << wploss); |
470 |
NS_LOG_DEBUG ("Worst loss prob= " << wploss); |
| 471 |
if (bploss >= thresholds.m_mtl) |
471 |
if (bploss >= thresholds.m_mtl) |
| 472 |
{ |
472 |
{ |
| 473 |
if (station->m_powerLevel < m_maxPower) |
473 |
if (station->m_powerLevel < m_maxPowerLevel) |
| 474 |
{ |
474 |
{ |
| 475 |
NS_LOG_DEBUG ("bploss >= MTL and power < maxPower => Increase Power"); |
475 |
NS_LOG_DEBUG ("bploss >= MTL and power < maxPower => Increase Power"); |
| 476 |
station->m_pdTable[station->m_rateIndex][station->m_powerLevel] /= m_gamma; |
476 |
station->m_pdTable[station->m_rateIndex][station->m_powerLevel] /= m_gamma; |
|
Lines 505-511
RrpaaWifiManager::RunBasicAlgorithm (RrpaaWifiRemoteStation *station)
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Link Here
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| 505 |
{ |
505 |
{ |
| 506 |
station->m_pdTable[i][station->m_powerLevel] = 1; |
506 |
station->m_pdTable[i][station->m_powerLevel] = 1; |
| 507 |
} |
507 |
} |
| 508 |
NS_LOG_DEBUG ("pdTable[" << i << "][" << station->m_powerLevel << "] = " << station->m_pdTable[i][station->m_powerLevel]); |
508 |
NS_LOG_DEBUG ("pdTable[" << i << "][" << (int)station->m_powerLevel << "] = " << station->m_pdTable[i][station->m_powerLevel]); |
| 509 |
} |
509 |
} |
| 510 |
double rand = m_uniformRandomVariable->GetValue (0,1); |
510 |
double rand = m_uniformRandomVariable->GetValue (0,1); |
| 511 |
if (rand < station->m_pdTable[station->m_rateIndex + 1][station->m_powerLevel]) |
511 |
if (rand < station->m_pdTable[station->m_rateIndex + 1][station->m_powerLevel]) |
|
Lines 514-525
RrpaaWifiManager::RunBasicAlgorithm (RrpaaWifiRemoteStation *station)
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Link Here
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| 514 |
station->m_rateIndex++; |
514 |
station->m_rateIndex++; |
| 515 |
} |
515 |
} |
| 516 |
} |
516 |
} |
| 517 |
else if (station->m_powerLevel > m_minPower) |
517 |
else if (station->m_powerLevel > m_minPowerLevel) |
| 518 |
{ |
518 |
{ |
| 519 |
NS_LOG_DEBUG ("wploss <= ORI and rate = maxRate => Probabilistic Power Decrease"); |
519 |
NS_LOG_DEBUG ("wploss <= ORI and rate = maxRate => Probabilistic Power Decrease"); |
| 520 |
|
520 |
|
| 521 |
// Recalculate probabilities of higher powers. |
521 |
// Recalculate probabilities of higher powers. |
| 522 |
for (uint32_t i = m_maxPower; i > station->m_powerLevel; i--) |
522 |
for (uint32_t i = m_maxPowerLevel; i > station->m_powerLevel; i--) |
| 523 |
{ |
523 |
{ |
| 524 |
station->m_pdTable[station->m_rateIndex][i] *= m_delta; |
524 |
station->m_pdTable[station->m_rateIndex][i] *= m_delta; |
| 525 |
if (station->m_pdTable[station->m_rateIndex][i] > 1) |
525 |
if (station->m_pdTable[station->m_rateIndex][i] > 1) |
|
Lines 539-550
RrpaaWifiManager::RunBasicAlgorithm (RrpaaWifiRemoteStation *station)
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Link Here
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| 539 |
} |
539 |
} |
| 540 |
else if (bploss > thresholds.m_ori && wploss < thresholds.m_mtl) |
540 |
else if (bploss > thresholds.m_ori && wploss < thresholds.m_mtl) |
| 541 |
{ |
541 |
{ |
| 542 |
if (station->m_powerLevel > m_minPower) |
542 |
if (station->m_powerLevel > m_minPowerLevel) |
| 543 |
{ |
543 |
{ |
| 544 |
NS_LOG_DEBUG ("loss between ORI and MTL and power > minPower => Probabilistic Power Decrease"); |
544 |
NS_LOG_DEBUG ("loss between ORI and MTL and power > minPowerLevel => Probabilistic Power Decrease"); |
| 545 |
|
545 |
|
| 546 |
// Recalculate probabilities of higher powers. |
546 |
// Recalculate probabilities of higher powers. |
| 547 |
for (uint32_t i = m_maxPower; i >= station->m_powerLevel; i--) |
547 |
for (uint32_t i = m_maxPowerLevel; i >= station->m_powerLevel; i--) |
| 548 |
{ |
548 |
{ |
| 549 |
station->m_pdTable[station->m_rateIndex][i] *= m_delta; |
549 |
station->m_pdTable[station->m_rateIndex][i] *= m_delta; |
| 550 |
if (station->m_pdTable[station->m_rateIndex][i] > 1) |
550 |
if (station->m_pdTable[station->m_rateIndex][i] > 1) |