1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#!/usr/bin/env python
# Load ESDS
import esds
import numpy as np
########## Scenario ##########
# Notations:
# - Remaining communication duration (last communication ends minus current simulated time) = C
# - Last communication duration (previous row) = U
# - Last remaining data size (previous row) = D
# - Current remaining data (current row) = R
# - Initial data size (first row) = I
# - Bandwidth = BW
# - Latency = L
# |-------------------+------------+----------------+----------------------+---------------------------+--------------------------|
# | Simulated time(s) | Latency(s) | Bandwidth(bps) | Remaining data (bit) | Communication duration(s) | Communication ends at(s) |
# |-------------------+------------+----------------+----------------------+---------------------------+--------------------------|
# | 0 | 0 | 8 | 8 | 1 | 1 |
# | 0.5 | 0 | 16 | C/U*D = 4 | R/I * L + R/BW = 0.25 | 0.75 |
# | 0.75 | 0 | 16 | | | |
# |-------------------+------------+----------------+----------------------+---------------------------+--------------------------|
##############################
B=np.full((2,2),8)
L=np.full((2,2),0)
s=esds.Simulator({"wlan0":{"bandwidth":B, "latency":L, "is_wired":False}, "eth0":{"bandwidth":B, "latency":L, "is_wired":True}})
s.create_node("sender")
s.create_node("receiver")
def callback(simulator):
simulator.log("Network update!")
new_bw_wlan0=simulator.netmat["wlan0"]["bandwidth"]*2
new_bw_eth0=simulator.netmat["eth0"]["bandwidth"]*2
simulator.update_network({"wlan0":{"bandwidth":new_bw_wlan0, "latency":L, "is_wired":False}, "eth0":{"bandwidth":new_bw_eth0, "latency":L, "is_wired":True}})
s.run(breakpoints_every=1/2,breakpoint_callback=callback)
|
