def setRSSI(self, sta=None, ap=None, wlan=0, dist=0):
"""set RSSI
:param sta: station
:param ap: access point
:param wlan: wlan ID
:param dist: distance
"""
lF = self.lF
sl = self.sl
nFloors = self.nFloors
gRandom = self.gRandom
pL = self.pL
gT = 0
hT = 0
if ap != None:
pT = ap.params['txpower'][0]
else:
pT = sta.params['txpower'][wlan]
gR = sta.params['antennaGain'][wlan]
hR = sta.params['antennaHeight'][wlan]
value = propagationModel(sta, ap, dist, wlan, pT, gT, gR, hT, hR, sl,
lF, pL, nFloors, gRandom)
return float(value.rssi) # random.uniform(value.rssi-1, value.rssi+1)
def calculateNoise(self, sta, station, signalPower, wlan):
dist = self.getDistance(sta, station)
totalRange = sta.range + station.range
if dist < totalRange:
value = propagationModel(sta, station, dist, wlan)
n = value.rssi + signalPower
self.noise += n
self.i += 1
self.dist += dist
def setRSSI(self, node1=None, node2=None, wlan=0, dist=0):
"""set RSSI
:param node1: station
:param node2: access point
:param wlan: wlan ID
:param dist: distance
"""
value = propagationModel(node1, node2, dist, wlan)
return float(value.rssi) # random.uniform(value.rssi-1, value.rssi+1)
def calculateNoise(self, sta, station, signalPower, wlan, model):
dist = self.getDistance(sta, station)
totalRange = sta.range + station.range
systemLoss = 1
if dist < totalRange:
dist = totalRange - dist
value = propagationModel(sta, station, dist, wlan, model, systemLoss)
n = value.rssi + signalPower
self.noise =+ n
self.i+=1
self.dist =+ dist
def calculate (self, node1, node2, propagation_Model, staList, wlan):
sta = node1
ap = node2
model = propagation_Model
totalRange = 0
noise = 0
i=0
signalPower = sta.rssi[wlan]
if node2 == None:
for station in staList:
if station != sta and sta.isAssociated[wlan] == True:
d = distance(sta, station)
dist = d.dist
totalRange = sta.range + station.range
systemLoss = 1
if dist < totalRange:
value = propagationModel(sta, station, dist, wlan, model, systemLoss)
n = value.rssi + signalPower
noise =+ n
i+=1
else:
for station in ap.associatedStations:
if station != sta and sta.associatedAp[wlan] != 'NoAssociated':
d = distance(sta, station)
dist = d.dist
totalRange = sta.range + station.range
systemLoss = 1
if dist < totalRange:
value = propagationModel(sta, station, dist, wlan, model, systemLoss)
n = value.rssi + signalPower
noise =+ n
i+=1
if i != 0:
noisePower = noise/i
signalPower = sta.rssi[wlan]
if i != 0:
sta.snr[wlan] = self.signalToNoiseRatio(signalPower, noisePower)
else:
sta.snr[wlan] = abs(signalPower)
def bw(self, node1, node2, dist, staList, wlan):
systemLoss = 1
self.rate = 0
if self.propagModel == '':
self.propagModel = 'friisPropagationLossModel'
value = deviceDataRate(node1, node2, wlan)
custombw = value.rate
if node2 == None:
node1.rssi[wlan] = -50 - dist
self.rate = custombw * (1.1 ** -dist)
else:
if dist != 0:
value = propagationModel(node1, node2, dist, wlan, self.propagModel, systemLoss)
node1.rssi[wlan] = value.rssi
if node2.equipmentModel == None:
self.rate = custombw * (1.1 ** -dist)
return self.rate
def bw(self, sta, ap, dist, wlan):
lF = channelParams.lF
sl = channelParams.sl
nFloors = channelParams.nFloors
gRandom = channelParams.gRandom
pL = channelParams.pL
pT = ap.params['txpower'][0]
gT = ap.params['antennaGain'][0]
hT = ap.params['antennaHeight'][0]
gR = sta.params['antennaGain'][wlan]
hR = sta.params['antennaHeight'][wlan]
value = propagationModel(sta, ap, dist, wlan, pT, gT, gR, hT, hR, sl, lF, pL, nFloors, gRandom)
sta.params['rssi'][wlan] = value.rssi # random.uniform(value.rssi-1, value.rssi+1)
value = deviceDataRate(sta, ap, wlan)
custombw = value.rate
rate = eval(channelParams.equationBw)
if rate <= 0.0:
rate = 0.1
return rate
def bw(self, sta, dist, wlan):
lF = channelParams.lF
sl = channelParams.sl
nFloors = channelParams.nFloors
gRandom = channelParams.gRandom
pL = channelParams.pL
gT = 0
hT = 0
pT = sta.params['txpower'][wlan]
gR = sta.params['antennaGain'][wlan]
hR = sta.params['antennaHeight'][wlan]
if self.i != 0:
dist = self.dist / self.i
value = propagationModel(sta, None, dist, wlan, pT, gT, gR, hT, hR, sl, lF, pL, nFloors, gRandom)
sta.params['rssi'][wlan] = value.rssi
value = deviceDataRate(sta, None, wlan)
custombw = value.rate
rate = eval(channelParams.equationBw)
if rate <= 0:
rate = 0.1
return rate
def bw(self, node1, node2, dist, wlan):
systemLoss = 1
self.rate = 0
if emulationEnvironment.propagation_Model == '':
emulationEnvironment.propagation_Model = 'friisPropagationLossModel'
value = deviceDataRate(node1, node2, wlan)
custombw = value.rate
self.rate = value.rate
if node2 == None:
if self.i != 0:
dist = self.dist/self.i
node1.rssi[wlan] = -50 - float(dist)
self.rate = (custombw * (1.1 ** -dist))/5
else:
if dist != 0:
value = propagationModel(node1, node2, dist, wlan, emulationEnvironment.propagation_Model, systemLoss)
node1.rssi[wlan] = random.uniform(value.rssi-1, value.rssi+1)
if node2.equipmentModel == None:
self.rate = custombw * (1.1 ** -dist)
self.rate = self.rate - self.loss*2
if self.rate <= 0:
self.rate = 1
return self.rate
