def obtain_harvested_energy(self, parameter):
"""
Randomly choose energy between $[0, E_i^H]$.
:param parameter: the instance of class Parameter
:return: actually harvested energy, $\alpha_i$
"""
return random.uniform(
0, ToolFunction.generate_harvestable_energy(parameter))
def obtain_harvested_energy(self, parameter):
"""
Obtain the optimal harvested energy by solving the 'optimal energy harvesting' sub-problem
according to \eqref{18}.
:param parameter: the instance of class Parameter
:return: the optimal harvested energy
"""
if self.get_virtual_energy_levels() <= 0:
return ToolFunction.generate_harvestable_energy(parameter)
else:
return 0