def logNormalShadowing(self, **kwargs): """Log-Normal Shadowing Propagation Loss Model distance is the range of the transmitter (m)""" from mininet.wmediumdConnector import WmediumdGaussianRandom, \ WmediumdServerConn ref_dist = 1 antGain = kwargs['node'].params['antennaGain'][kwargs['wlan']] mean = 0 variance = propagationModel.variance gRandom = float('%.2f' % gauss(mean, variance)) propagationModel.gRandom = gRandom if kwargs['interference']: sleep(0.001) # notice problem when there are many threads WmediumdServerConn.update_gaussian_random( WmediumdGaussianRandom(kwargs['node'].wmIface[kwargs['wlan']], gRandom)) pathLoss = self.pathLoss(kwargs['node'], ref_dist, kwargs['wlan']) - gRandom self.txpower = 10 * ppm.exp * math.log10( kwargs['dist'] / ref_dist) - 92 + pathLoss - (antGain * 2) if self.txpower < 0: error('*** Error: tx power is negative! (%s)\n' % self.txpower) exit(1) return self.txpower
def apInRange(self, sta, ap, wlan, dist): """ When ap is in range :param sta: station :param ap: access point :param wlan: wlan ID :param dist: distance between source and destination """ if self.rec_rssi: os.system('hwsim_mgmt -k %s %s >/dev/null 2>&1' % (sta.phyID[wlan], abs(int(sta.params['rssi'][wlan])))) if ap not in sta.params['apsInRange']: sta.params['apsInRange'].append(ap) rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) ap.params['stationsInRange'][sta] = rssi_ else: rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) ap.params['stationsInRange'][sta] = rssi_ if ap == sta.params['associatedTo'][wlan]: rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) sta.params['rssi'][wlan] = rssi_ snr_ = setChannelParams.setSNR(sta, wlan) sta.params['snr'][wlan] = snr_ if sta not in ap.params['associatedStations']: ap.params['associatedStations'].append(sta) if not WmediumdServerConn.connected and dist >= 0.01: setChannelParams(sta, ap, wlan, dist) if WmediumdServerConn.connected and dist >= 0.01: WmediumdServerConn.send_snr_update( WmediumdSNRLink(sta.wmediumdIface, ap.wmediumdIface, sta.params['snr'][wlan])) setChannelParams.recordParams(sta, ap)
def logNormalShadowing(self, **kwargs): """Log-Normal Shadowing Propagation Loss Model""" from mininet.wmediumdConnector import WmediumdGaussianRandom, \ WmediumdServerConn ref_dist = 1 txpower = kwargs['node'].params['txpower'][kwargs['wlan']] antGain = kwargs['node'].params['antennaGain'][kwargs['wlan']] gains = txpower + (antGain * 2) mean = 0 variance = propagationModel.variance gRandom = float('%.2f' % gauss(mean, variance)) propagationModel.gRandom = gRandom if kwargs['interference']: sleep(0.002) #notice problem when there are many threads WmediumdServerConn.update_gaussian_random( WmediumdGaussianRandom(kwargs['node'].wmIface[kwargs['wlan']], gRandom)) pathLoss = self.pathLoss(kwargs['node'], ref_dist, kwargs['wlan']) - gRandom self.dist = math.pow(10, ((-ppm.noise_threshold - pathLoss + gains) / (10 * ppm.exp))) * ref_dist return self.dist
def closeMininetWiFi(self): "Close Mininet-WiFi" self.plot.closePlot() module.stop() # Stopping WiFi Module if self.useWmediumd: WmediumdServerConn.disconnect() WmediumdStarter.stop()
def closeMininetWiFi(self): "Close Mininet-WiFi" mobility.continuePlot = 'exit()' mobility.continueParams = 'exit()' sleep(2) self.plot.closePlot() module.stop() # Stopping WiFi Module if self.useWmediumd: WmediumdServerConn.disconnect() WmediumdStarter.stop()
def logNormalShadowingPropagationLossModel(self, node, wlan): """Log-Normal Shadowing Propagation Loss Model""" from mininet.wmediumdConnector import WmediumdGaussianRandom, WmediumdServerConn from mininet.wifiNet import mininetWiFi referenceDistance = 1 txpower = node.params['txpower'][wlan] antGain = node.params['antennaGain'][wlan] gains = txpower + (antGain * 2) mean = 0 variance = propagationModel.variance gRandom = float('%.2f' % gauss(mean, variance)) propagationModel.gRandom = gRandom if mininetWiFi.enable_interference: WmediumdServerConn.send_gaussian_random_update( WmediumdGaussianRandom(node.wmIface[wlan], gRandom)) pathLoss = self.pathLoss(node, referenceDistance, wlan) - gRandom self.dist = math.pow(10, ((90 - pathLoss + gains) / (10 * self.exp)) + math.log10(referenceDistance)) return self.dist
def topology(): """Create a network. sta1 <--> sta2 <--> sta3""" print "*** Network creation" net = Mininet() print "*** Creating nodes" sta1 = net.addStation('sta1', range=50, position='10,10,0') sta2 = net.addStation('sta2', range=50, position='20,10,0') sta3 = net.addStation('sta3', range=50, position='30,10,0') print "*** Configure wmediumd" # This should be done right after the station has been initialized sta1.wmediumdIface = DynamicWmediumdIntfRef(sta1) sta2.wmediumdIface = DynamicWmediumdIntfRef(sta2) sta3.wmediumdIface = DynamicWmediumdIntfRef(sta3) intfrefs = [sta1.wmediumdIface, sta2.wmediumdIface, sta3.wmediumdIface] links = [ WmediumdSNRLink(sta1.wmediumdIface, sta2.wmediumdIface, 15), WmediumdSNRLink(sta2.wmediumdIface, sta1.wmediumdIface, 15), WmediumdSNRLink(sta2.wmediumdIface, sta3.wmediumdIface, 15), WmediumdSNRLink(sta3.wmediumdIface, sta2.wmediumdIface, 15) ] WmediumdStarter.initialize(intfrefs, links, with_server=True) print "*** Configuring wifi nodes" net.configureWifiNodes() print "*** Start wmediumd" WmediumdStarter.start() print "*** Plotting graph ***" net.plotGraph(max_x=200, max_y=200) print "*** Enabling Mesh Routing ***" net.meshRouting('custom') print "*** Creating links" net.addMesh(sta1, ssid='adNet') net.addMesh(sta2, ssid='adNet') net.addMesh(sta3, ssid='adNet') print "*** Starting network" net.start() print "\n\n\n" print "*** Pinging sta2" sta1.cmdPrint('ping -c 1 10.0.0.2') print "*** Update wmediumd" WmediumdServerConn.connect() # Required when the position of the nodes are previously defined. Useful to set channel params. net.autoAssociation() CLI(net) print "*** Stopping network" net.stop() print "*** Stopping wmediumd" WmediumdServerConn.disconnect() WmediumdStarter.stop()
def wmediumdConnect(): WmediumdServerConn.connect()
def kill_wmediumd(cls): "Kill wmediumd" info("\n*** Killing wmediumd") WmediumdServerConn.disconnect() WmediumdStarter.stop() sleep(0.1)
def wmediumdConnect(): "Connect to wmediumd" WmediumdServerConn.connect()
def setSNRWmediumd(self, sta, ap, snr): "Set SNR for wmediumd" WmediumdServerConn.send_snr_update( WmediumdSNRLink(sta.wmIface[0], ap.wmIface[0], snr)) WmediumdServerConn.send_snr_update( WmediumdSNRLink(ap.wmIface[0], sta.wmIface[0], snr))
def customMeshRouting(self, sta, wlan, stations): """Custom Mesh Routing""" associate = False controlMeshMac = [] command = '' for ref_sta in stations: if ref_sta.type == 'vehicle': ref_sta = ref_sta.params['carsta'] for ref_wlan in range(len(ref_sta.params['wlan'])): if ref_sta != sta and ref_sta.func[ ref_wlan] == 'mesh' and 'position' in sta.params: dist = setChannelParams.getDistance(sta, ref_sta) totalRange = int(sta.params['range']) ref_totalRange = int(ref_sta.params['range']) if ref_totalRange > totalRange: totalRange = ref_totalRange if dist <= totalRange: if ref_sta.func[ref_wlan] == 'mesh': if sta.params['associatedTo'][ wlan] == ref_sta.params['associatedTo'][ ref_wlan]: associate = True if not WmediumdServerConn.connected: setChannelParams(sta=sta, wlan=wlan, dist=dist) elif 'position' not in sta.params: associate = True """Adding all reached target paths""" if associate: exist = [] sta_ref = [] sta_ref.append(sta) j = 0 exist.append(sta) while j < len(stations): j += 1 if sta_ref == []: break else: newsta = sta_ref[0] for x, y in zip(listNodes.nodesX, listNodes.nodesY): if x == sta and y not in exist: if WmediumdServerConn.connected: WmediumdServerConn.send_snr_update( WmediumdSNRLink(sta.wmediumdIface, y.wmediumdIface, sta.params['snr'][wlan])) else: command = 'iw dev %s mpath new %s next_hop %s' % (sta.params['wlan'][wlan], \ y.meshMac[wlan], y.meshMac[wlan]) debug('\n' + command) sta.pexec(command) exist.append(y) controlMeshMac.append(y.meshMac[wlan]) sta_ref.append(y) elif x == newsta and y not in exist: if WmediumdServerConn.connected: pass else: command = 'iw dev %s mpath new %s next_hop %s' % (sta.params['wlan'][wlan], \ y.meshMac[wlan], x.meshMac[wlan]) debug('\n' + command) sta.pexec(command) exist.append(y) controlMeshMac.append(y.meshMac[wlan]) sta_ref.append(y) if newsta in sta_ref: sta_ref.remove(newsta) """delete unknown paths""" if associate: for ref_sta in stations: for ref_wlan in range(len(ref_sta.params['wlan'])): if ref_sta != sta and ref_sta.func[ref_wlan] == 'mesh': if ref_sta.type == 'vehicle': ref_wlan = 0 ref_sta = ref_sta.params['carsta'] if ref_sta.meshMac[ref_wlan] not in controlMeshMac: sta.pexec('iw dev %s mpath del %s' % (sta.params['wlan'][wlan], ref_sta.meshMac[ref_wlan])) """mesh leave""" if associate == False: debug('\niw dev %s mesh leave' % sta.params['wlan'][wlan]) sta.pexec('iw dev %s mesh leave' % sta.params['wlan'][wlan]) sta.params['associatedTo'][wlan] = ''
def topology(): """Create a network. sta1 <--> sta2 <--> sta3""" print "*** Network creation" net = Mininet() print "*** Creating nodes" sta1 = net.addStation('sta1', range=200) sta2 = net.addStation('sta2', range=200) sta3 = net.addStation('sta3', range=200) print "*** Configure wmediumd" # This should be done right after the station has been initialized sta1.wmediumdIface = DynamicWmediumdIntfRef(sta1) sta2.wmediumdIface = DynamicWmediumdIntfRef(sta2) sta3.wmediumdIface = DynamicWmediumdIntfRef(sta3) intfrefs = [sta1.wmediumdIface, sta2.wmediumdIface, sta3.wmediumdIface] links = [ WmediumdLink(sta1wlan0, sta2wlan0, 15), WmediumdLink(sta2wlan0, sta1wlan0, 15), WmediumdLink(sta2wlan0, sta3wlan0, 15), WmediumdLink(sta3wlan0, sta2wlan0, 15) ] WmediumdConn.set_wmediumd_data(intfrefs, links, with_server=True) WmediumdConn.connect_wmediumd_on_startup() print "*** Configuring wifi nodes" net.configureWifiNodes() net.plotGraph(max_x=240, max_y=240) net.meshRouting('custom') net.seed(20) print "*** Creating links" net.addMesh(sta1, ssid='adNet') net.addMesh(sta2, ssid='adNet') net.addMesh(sta3, ssid='adNet') print "*** Starting network" net.start() print "\n\n\n" print "*** Pinging sta2" sta1.cmdPrint('ping -c 1 10.0.0.2') print "*** Setting up the mobility model" net.startMobility(startTime=0, model='RandomDirection', max_x=220, max_y=220, min_v=0.1, max_v=0.2) print "*** Update wmediumd" WmediumdServerConn.connect() CLI(net) print "*** Stopping network" net.stop() print "*** Stopping wmediumd" WmediumdServerConn.disconnect() WmediumdConn.disconnect_wmediumd()
def setSNRWmediumd(cls, sta, ap, snr): "Send SNR to wmediumd" WmediumdServerConn.send_snr_update( WmediumdSNRLink(sta.wmIface[0], ap.wmIface[0], snr)) WmediumdServerConn.send_snr_update( WmediumdSNRLink(ap.wmIface[0], sta.wmIface[0], snr))
def apInRange(self, sta, ap, wlan, dist): """ When ap is in range :param sta: station :param ap: access point :param wlan: wlan ID :param dist: distance between source and destination """ outevent = False if self.rec_rssi: os.system('hwsim_mgmt -k %s %s >/dev/null 2>&1' % (sta.phyID[wlan], abs(int(sta.params['rssi'][wlan])))) if ap not in sta.params['apsInRange']: sta.params['apsInRange'].append(ap) rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) ap.params['stationsInRange'][sta] = rssi_ else: rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) ap.params['stationsInRange'][sta] = rssi_ if sta in ap.params['associatedStations'] and ap.params[ 'stationsInRange'][sta] > -43 and ap.func[0] == 'ap': sta.params['minswch'] = False if sta in ap.params['associatedStations'] and ap.params[ 'stationsInRange'][sta] > -45.95 and ap.func[0] == 'ap': sta.params['maxswch'] = False outevent = True if ap == sta.params['associatedTo'][wlan]: rssi_ = setChannelParams.setRSSI(sta, ap, wlan, dist) sta.params['rssi'][wlan] = rssi_ snr_ = setChannelParams.setSNR(sta, wlan) sta.params['snr'][wlan] = snr_ if sta not in ap.params['associatedStations']: ap.params['associatedStations'].append(sta) if not WmediumdServerConn.connected and dist >= 0.01: setChannelParams(sta, ap, wlan, dist) if ap.func[0] == 'ap': #~ ap.params['out']=False if ap.params['stationsInRange'][sta] <= -44 and sta.params[ 'minswch'] == False: #~ ap.cmd('echo "%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],ap.params['controller_IP'])) #~ print(sta.params['mac'], ap.params['stationsInRange'][sta],ap.params['controller_IP'],ap.name) #~ ap.cmd('echo "%s,%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],['ASSO'],ap.params['controller_IP'])) #~ print 'STA ' + str(sta.params['mac']) + 'is ASSOCIATED to '+ ap.name + ' With RSSI ' + str(ap.params['stationsInRange'][sta]) ap.cmdPrint('echo "%s,%s,%s,%d" > /dev/udp/%s/5005' % (sta.params['mac'][0], ap.params['stationsInRange'][sta], "ASSO", 1, ap.params['controller_IP'])) sta.params['minswch'] = True sta.params['x'] = len(sta.params['apsInRange']) - 1 ap.params['AssoMacRSSI1'][sta.params['mac'][ 0]] = ap.params['stationsInRange'][sta] elif ap.params['stationsInRange'][sta] <= -46 and sta.params[ 'maxswch'] == False: #~ print 'STA ' + str(sta.params['mac']) + 'is ASSOCIATED to '+ ap.name + ' With RSSI ' + str(ap.params['stationsInRange'][sta]) ap.cmdPrint('echo "%s,%s,%s,%d" > /dev/udp/%s/5005' % (sta.params['mac'][0], ap.params['stationsInRange'][sta], "ASSO", 2, ap.params['controller_IP'])) #~ ap.cmd('echo "%s,%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],['ASSO'],ap.params['controller_IP'])) sta.params['maxswch'] = True sta.params['y'] = len(sta.params['apsInRange']) - 1 ap.params['AssoMacRSSI2'][sta.params['mac'][ 0]] = ap.params['stationsInRange'][sta] #~ if (ap.params['AssoMacRSSI1'] != {}) and (ap.params['AssoMacRSSI2'] != {}): #~ if (ap.params['AssoMacRSSI1'][sta.params['mac'][0]] != None) and (ap.params['AssoMacRSSI2'][sta.params['mac'][0]] != None): #~ print (ap.name, 'ASSO', sta.params['mac'], ap.params['AssoMacRSSI2'][sta.params['mac'][0]] - ap.params['AssoMacRSSI1'][sta.params['mac'][0]]) #~ ap.cmd('echo "%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],ap.params['controller_IP'])) #~ Uncomment this one for exact getrssi #~ ap.cmd('echo "%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['AssoMacRSSI2'][sta.params['mac'][0]] - ap.params['AssoMacRSSI1'][sta.params['mac'][0]],'ASSO',ap.params['controller_IP'])) #~ print 'STA ' + str(sta.params['mac']) + 'is ASSOCIATED to '+ ap.name + ' With RSSI ' + str(ap.params['stationsInRange'][sta]) if WmediumdServerConn.connected and dist >= 0.01: WmediumdServerConn.send_snr_update( WmediumdSNRLink(sta.wmediumdIface, ap.wmediumdIface, sta.params['snr'][wlan])) elif ap != sta.params['associatedTo'][wlan] and sta.params[ 'x'] > 0 and ap.func[0] == 'ap': #~ ap.params['out'][sta.params['mac'][0]]=True #~ print 'STA ' + str(sta.params['mac']) + 'is in RANGE of '+ ap.name + ' With RSSI ' + str(ap.params['stationsInRange'][sta]) ap.cmdPrint( 'echo "%s,%s,%s,%d" > /dev/udp/%s/5005' % (sta.params['mac'][0], ap.params['stationsInRange'][sta], "RANGE", 1, ap.params['controller_IP'])) #~ ap.cmd('echo "%s,%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],['RANGE'],ap.params['controller_IP'])) sta.params['x'] = sta.params['x'] - 1 ap.params['InRgMacRSSI1'][sta.params['mac'] [0]] = ap.params['stationsInRange'][sta] ap.params['r1_r2_sentevent'][0] = True elif ap != sta.params['associatedTo'][wlan] and sta.params[ 'y'] > 0 and ap.func[0] == 'ap': #~ ap.params['out'][sta.params['mac'][0]]=False #~ print 'STA ' + str(sta.params['mac']) + 'is in RANGE of '+ ap.name + ' With RSSI ' + str(ap.params['stationsInRange'][sta]) ap.cmdPrint( 'echo "%s,%s,%s,%d" > /dev/udp/%s/5005' % (sta.params['mac'][0], ap.params['stationsInRange'][sta], "RANGE", 2, ap.params['controller_IP'])) #~ ap.cmdPrint('echo "%s,%s,%s,%d" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta], "DONE", 2, ap.params['controller_IP'])) #~ ap.cmd('echo "%s,%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta],['RANGE'],ap.params['controller_IP'])) sta.params['y'] = sta.params['y'] - 1 ap.params['InRgMacRSSI2'][sta.params['mac'] [0]] = ap.params['stationsInRange'][sta] ap.params['r1_r2_sentevent'][1] = True if ap.params['r1_r2_sentevent'] == [ True, True ] or ap.params['r1_r2_sentevent'] == [False, True]: ap.params['r1_r2_sentevent'] = [False, False] #~ if (ap.params['InRgMacRSSI1'] != {}) and (ap.params['InRgMacRSSI2'] != {}): #~ if (ap.params['InRgMacRSSI1'][sta.params['mac'][0]] != None) and (ap.params['InRgMacRSSI2'][sta.params['mac'][0]] != None): #~ print (ap.name, 'InRg', sta.params['mac'], ap.params['InRgMacRSSI2'][sta.params['mac'][0]] - ap.params['InRgMacRSSI1'][sta.params['mac'][0]]) #~ ap.cmd('echo "%s,%s,%s" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['InRgMacRSSI2'][sta.params['mac'][0]] - ap.params['InRgMacRSSI1'][sta.params['mac'][0]],'RANGE',ap.params['controller_IP'])) #~ elif ap.func[0]=='ap' and ap != sta.params['associatedTo'][wlan] and float(setChannelParams.getDistance(ap, sta))>=((float(ap.params['range']))-1) and outevent==True: #~ if sta not in ap.params['associatedStations'] and ap.params['r1_r2_sentevent']==[True,False]: #~ ap.cmdPrint('echo "%s,%s,%s,%d" > /dev/udp/%s/5005' %(sta.params['mac'][0], ap.params['stationsInRange'][sta], "OUT", 1, ap.params['controller_IP'])) setChannelParams.recordParams(sta, ap)