def __init__(self,
nakagami_fade_factor=3,
propagation_model=pm.FreeSpacePropagation()):
super().__init__(propagation_model=propagation_model)
self.m = nakagami_fade_factor # Nakagami fading parameter
pm_name = self.propagation_model.model_name
self.model_name = "Nakagami Reception (%s, m = %d)" % (pm_name, self.m)
import sys
import os
from matplotlib import pyplot as plt
sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
from communicationmodels import propagationmodels
rx_threshold = 1e-10 # W
tx_power = 40 # W
freq = 978e6 # Hz
h_t = 100 # height of transmitting antenna (m)
h_r = 100 # height of receiving antenna (m)
models = [
propagationmodels.NoLossPropagation(),
propagationmodels.FreeSpacePropagation(),
propagationmodels.TwoRayGroundPropagation(),
]
for pm in models:
CR = pm.inverse(rx_threshold, tx_power, freq, h_t, h_r)
print(pm.model_name)
print("\tcommunication range: %.2f m" % CR)
plt.figure()
pm.plot(rx_threshold, tx_power, freq, h_t, h_r, save=True, show=True)
def __init__(self, propagation_model=pm.FreeSpacePropagation()):
super().__init__(propagation_model=propagation_model)
pm_name = self.propagation_model.model_name
self.model_name = "Rayleigh Reception (%s)" % pm_name
def __init__(self, propagation_model=pm.FreeSpacePropagation()):
super().__init__(propagation_model=propagation_model)