Optimized Advanced Metering Infrastructure Architecture of Smart Grid based on Total Cost, Energy, and Delay

Smart grid as a data communication network uses advanced metering infrastructure architecture to collect the measured data of smart meters and other devices such as power measurement units from different parts of the electrical grid and sends them to the central system to be analyzed for billing or other purposes and being stored. In this paper, we propose a three-layer aggregation architecture for advanced metering infrastructure in smart grid which deploys the M/M/1 queuing system. We develop models to calculate energy consumption of data aggregation points (DAPs) and packet delay. We derive expressions for energy consumption of DAPs, total cost of relay and DAPs, delay, and packet delay. We define a new performance metric, the multiplication of energy and cost (EC), to find the optimum number of DAPs. The results of simulation confirm validity and accuracy of our theoretical models and show that we can maintain a good balance among total cost, energy consumption and delay.