Smart grids in South Korea help the country use more renewable energy sources and cut overall energy consumption." The "smart" in a grid is achieved through an installed software rather than hardware, banking more on the element of intelligence for more consistent upgrades, patterns learning, and timely response to new technologies. The South Korean smart grids include the following components: Internet in South Korea is more robust and developed than in almost any other country, with gigabit wired service being common even in fairly rural areas. Accordingly, Korean initiatives in smart grid and Internet of things largely take reliable backhaul connectivity for granted. The country's
Smart Cell Smart Cell Smart Cells are innovative ubiquitous radio access nodes that provide wireless connectivity across multiple spectrum ranges and technologies. As of January 2014, Macrocells, Small Cells, and Wi-Fi connections were the primary means of data connectivity. For these types of cells, the spectrum utilized is static and is based on the antenna installed. "A Smart Cell may transmit multiple frequencies and technologies which are controlled by the software and not the hardware" (antenna). Smart Cells are currently in the research and development stage but support software-defined networks which are proliferating the current mobile network structure, led by AT&T's adoption.