A QoS Scheme for Charging Electric Vehicles in a Smart Grid Environment

Electric vehicles (EVs) are expected to greatly reduce the carbon emissions from surface transport if they are widely used and efficiently charged. One of the main limitations of EVs is their limited range and relatively long recharging times. This limitation is closely associated with the current battery technologies used in the EVs. In order efficiently utilize the EVs, their charging schedules and locations must be effectively integrated within the smart grid. Real-time and reliable integration of EVs with the smart grid could solve problems related to demand response, cost and time of charging. In this paper, we propose a Quality of Service (QoS) scheme for Charging EVs (QCEV) in a smart grid environment. The proposed scheme provides centralized QoS differentiation to EVs that are communicating with an Access Point (AP) in situations where immediate EV battery charging is required. Our simulation results show that QCEV could significantly improve the performance of the wireless communication network especially in dense deployments.

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