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Node.py
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Node.py
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import sys
import random
class Node(object):
def __init__(self, argv):
# the first set of parameters are CSMA/CA para.
self.BOLimit = 4 # back off limit
self.RTLimit = 0 # retry limit
self.minBE = 3
self.maxBE = 5
self.BOCount = 0
self.RTCount = 0
self.BOExponent = 0
self.CW = 2 # contention window
self.CCA = 0
self.CCAResult = {}
self.ID = argv['ID']
#<<<<<<< HEAD
# the following are the x,y coordinate for the node.
# use the name coordinate-x(y), as x,y are already being used for busy channel/retry prob
self.corX = 10 #unit: m
self.corY = 10 #unit: m
#=======
#>>>>>>> 8c1bc2b3aca1bda3f00ab1f1346aa632dfe8f351
# the following set of para are power para
self.powLevel = 0 # current power setting
self.powTX = 0 # the TX power, RF power.
self.lastPowChange = 0 # time information. record the last time that power level has been changed.
#<<<<<<< HEAD
self.energy = 0 # J
#=======
self.energy = 0 # J
#>>>>>>> 8c1bc2b3aca1bda3f00ab1f1346aa632dfe8f351
# the following are for traffic generator
self.poiInterval = 100 # poisson interval
self.pacNumber = 100
# the following are for packet size and data
self.pacSize = 3 # in terms of slots
self.TxTime = 80
self.pacData = argv['src'] # use node ID as the data
# the following are the node ID, destination
self.des = argv['des']
# the following are node stat
self.transCount = 0
self.packetStat = {}
self.delayStat = {}
self.energyStat = {}
self.BOAttemptCount = {}
self.TRYAttemptCount = {}
self.BOAllCount = 0
self.TRYAllCount = 0
self.busyChannelProb = 0.01
self.failAckProb = 0.01
# the following are to record the start and end time for a packet
self.timeStart = 0
self.timeEnd = 0
#<<<<<<< HEAD
# the following are for the tuning of the parameters; the old busy channel and retry prob
self.oldX = 0
self.oldY = 0
#=======
#>>>>>>> 8c1bc2b3aca1bda3f00ab1f1346aa632dfe8f351
# the following are the packet interval.
#self.pacInterval = random.randint(950,1050)*20;
if self.ID == 0:
self.pacInterval = 200 # 200
elif self.ID < 6:
self.pacInterval = 400 # 200
elif self.ID < 11:
self.pacInterval = 400 # 400
elif self.ID < 16:
self.pacInterval = 600 # 600
else:
self.pacInterval = 600 # 800
# the following are for optimization purpose.
self.allInterval = [] # the record of data each arrival rate
def getBOCount(self):
return self.BOCount
def getRTCount(self):
return self.RTCount
def setBOCount(self,value = 1):
if value == 1:
self.BOCount += 1
elif value == 0:
self.BOCount = 0
else:
print ('Cannot set other values for BOCount.....')
sys.exit(0)
def setRTCount(self,value = 1):
if value == 1:
self.RTCount += 1
elif value == 0:
self.RTCount = 0
else:
print ('Cannot set other values for RTCount.....')
sys.exit(0)
def getBOLimit(self):
return self.BOLimit
def setBOLimit(self,value):
self.BOLimit = value
def getRTLimit(self):
return self.RTLimit
def setRTLimit(self,value):
self.RTLimit = value
def getPower(self):
return self.powLevel
def setPower(self,mode):
if mode == 'sleep':
self.powLevel = 1
elif mode == 'sense':
self.powLevel = 20
elif mode == 'tx':
self.powLevel = 50
elif mode == 'rx':
self.powLevel = 45
elif mode == 'idle':
self.powLevel = 5
else:
print ('No such power mode exists...')
sys.exit(0)
def getTXPower(self):
return self.powTX
def setTXPower(self,value):
self.powTX = value
def getPacket(self):
return self.pacSize,self.pacData
def getTransCount(self):
return self.transCount
def setTransCount(self):
self.transCont += 1
def setStat(self,statType,key,value):
if statType == 'packet':
self.packetStat[key] = value
elif statType == 'delay':
self.delayStat[key] = value
elif statType == 'energy':
self.energyStat[key] = value
else:
print ('No such stat exists')
# do not have to quit the program as this is not critical
def setCW(self, value):
if value == -1:
self.CW -= 1
else:
self.CW = value
def getCW(self):
return self.CW
def setBOExponent(self,value):
self.BOExponent = value
def getBOExponent(self):
return self.BOExponent
def getBE(self):
return self.minBE, self.maxBE
def getCCA(self):
return self.CCA
def setCCA(self,value):
self.CCA = value
def getID(self):
return self.ID
def setCCAResult(self,other,value):
self.CCAResult[other] = value
def getCCAResult(self):
return self.CCAResult
def updatePacStat(self,value):
self.packetStat[self.transCount] = value
self.transCount += 1
# there are 2 cases: 1 means get all the stat, n mean get n recent stat
def getPacStat(self,arg = 1):
if arg == 1:
return sum(self.packetStat.values()),self.transCount
else:
return sum(self.packetStat.values()[-arg:]),min(len(self.packetStat.values()),arg)
def updateDelayStat(self):
self.delayStat[self.transCount] = self.timeEnd - self.timeStart
def getDelayStat(self):
return sum(self.delayStat.values())/float(len(self.delayStat.values()))
#for v in self.delayStat.values():
# print (self.ID,v)
def timeStamping(self,time,options):
if options == 'start':
self.timeStart = time
elif options == 'end':
self.timeEnd = time
def getPacStart(self):
return self.timeStart
def updateEnergy(self,time):
# this must be done before changing the powLevel.
self.energy += self.powLevel*(time-self.lastPowChange)*4/250000/1000 # data rate and mW.
self.lastPowChange = time
def getEnergyStat(self):
return self.energy
def updateBOStat(self,result):
if result == 'busy':
self.BOAttemptCount[self.BOAllCount] = 1
elif result == 'idle':
self.BOAttemptCount[self.BOAllCount] = 0
self.BOAllCount += 1
self.busyChannelProb = sum(self.BOAttemptCount.values())/float(len(self.BOAttemptCount))
def updateTRYStat(self,result):
if result == 'suc':
self.TRYAttemptCount[self.TRYAllCount] = 0
elif result == 'fail':
self.TRYAttemptCount[self.TRYAllCount] = 1
self.TRYAllCount += 1
self.failAckProb = sum(self.TRYAttemptCount.values())/float(len(self.TRYAttemptCount))
# there are 2 cases: 1 means get all data; n means get the recent n data
def getChannelIndicators(self, arg1=1, arg2=1):
if arg1 == 1 and arg2 == 1:
return self.busyChannelProb,self.failAckProb
else:
return sum(self.BOAttemptCount.values()[-arg1:])/min(float(arg1),float(len(self.BOAttemptCount.values()))),sum(self.TRYAttemptCount.values()[-arg2:])/min(float(arg2), float(len(self.TRYAttemptCount.values())))
def getPacInterval(self):
return self.pacInterval
def setPacInterval(self,value):
self.pacInterval = value
def getOldXY(self):
return self.oldX,self.oldY
def setOldXY(self,x,y):
self.oldX = x
self.oldY = y
def insertPastInterval(self,value):
self.allInterval.append(value)
def getAverageInterval(self):
return sum(self.allInterval[-30:])/30
def getTxTime(self):
return self.TxTime