Modeling And Delay Analysis Of Wireless Home

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Modelling and Delay Analysis of Wireless Home Area Networks in a Smart Grid Abdulfattah Noorwali, Raveendra Rao, and Abdallah Shami Innovation Centre for Information Engineering (ICIE), Faculty of Engineering Department of Electrical and Computer Engineering University of Western Ontario, London, Ontario N6A 3K7, Canada Email: fanoorwal,rrao, Abstract—Smart grids are networks composed of several interconnected layers. The lowest layer consists of the Home Area Network (HAN), in which a set of Electrical Devices (EDs) communicate with a mesh client. This client then communicates with the mesh router of the wireless mesh network. EDs generate critical information packets, and these must be passed to a control station with minimal delay. In this paper, the modelling and delay of HANs is considered under several architectures for the communication of critical information packets to mesh clients. Bounds on achievable delay are derived as a function of the signal-to-noise ratio, number of electrical devices, number of channels, and channel interference range. We find that transmitting critical reports under a time division multiple access scheme suffers less delay than other schemes. I. INTRODUCTION The main challenge in communication network architecture is to develop a model that can cope with power grid issues. These issues include high consumer demand, economic balancing of power generation technologies, and responding to devices that are remote from the

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