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43 lines
1.7 KiB
Python
Executable file
43 lines
1.7 KiB
Python
Executable file
#!/usr/bin/env python
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# Load ESDS
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import esds
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# Use numpy to construct bandwidth and latencies matrix
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import numpy as np
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##### Scenario
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# The simulated scenario comprises 1 that wakes up randomly
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# for a duration called "uptime" every hour. The sender try to transmit
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# his data during that uptime. Other nodes are receivers that have similar
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# random wake up parterns and strive to receive data from the sender.
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##### Bandwidth matrix
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# Bandwidth value can be 0 for unreachable nodes
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# Regarding wireless interfaces the diagonals of the bandwidth and latency matrices are very important.
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# They determine the duration of the tranmission for THE SENDER. It allows to have a different tx
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# duration per node and per interface. Please cf esds.py for more informations.
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n=2 # Number of nodes including the sender
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B=np.full((n,n),5) # 5Mbps
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##### Latency matrix
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# If the latency entries match one with a bandwidth of 0
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# then it will be ignore since node is unreachable.
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L=np.full((n,n),0) # 0s
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##### Create the simulator
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# esds.Simulator take at least a dictionnary as a parameter
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# This dictionnary contains all the network interfaces (name as a key) of each node
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s=esds.Simulator({"wlan0":{"bandwidth":B, "latency":L, "is_wired":False},"eth0":{"bandwidth":B, "latency":L, "is_wired":True}})
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##### Instantiate nodes
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uptime=180 # 180s uptime
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s.create_node("sender",interfaces=["wlan0","eth0"],args=uptime) # Load sender.py for the first node with 5 as argument (first row in B and L)
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# Aguments can be passed to nodes via: s.create_node("sender",args="my argument")
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for n in range(0,n-1): # Load receiver.py for the remaining nodes
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s.create_node("receiver",interfaces=["wlan0","eth0"],args=uptime)
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##### Run the simulation
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#s.run(debug=True) # Generate a "esds.debug" file
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s.run()
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