Fair-enough Charging of Electric Vehicles

Charging electric vehicles (EVs) within parking
infrastructures with a small number of charging spots is a
problem that needs addressing in order to facilitate the wide
adoption of EVs. Fairness and efficiency during the charging
process are two important parameter that are examined in this
work for this specific use case. The α-fair and fair-enough
approaches are utilized, demonstrating that for the EV charging
scenario considered the fair-enough approach is better applicable
for practical applications, as it does not have the computational
complexity of the α-fair scheme by achieving the fairest energy
resource allocation possible prior to the system efficiency starts
degrading. Specifically, it is demonstrated that the fair-enough
scheme approximates the α-fair allocation, while also reducing
processing time by up to 94%.