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HAN is deployed and operated within a small area (tens of meters), usually a house or a small office; HAN has relatively low transmission data rate compared with other two networks, hundreds of bits per second (bps). In a typical implementation, a HAN consists of a broadband Internet connection that is shared between multiple users through a wired or wireless modem. It enables the communication and sharing of resources between computers, mobile, and other devices over a network connection. In Smart Grid implementation, all smart home devices that consume energy and smart meters can be connected to HAN. The device‐based data is acquired and transmitted through HAN to the smart meters. HAN allows more efficient home energy management. HAN can be implemented by ZigBee or Ethernet technologies.