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Enabling Technologies for IoT based Smart City

With the exponential growth of data traffic and demand for digital devices, it has become necessary to interconnect all these devices and establish a reliable communication through the internet. The required technology covers a wide area network, and it must include from the physical layer to the application layer of the Open Systems Interconnection (OSI) model. Therefore, the technological aspects of smart cities demand the incorporation based on the internet of things (IoT) concerns. Wireless technologies such as WiFi, ZigBee, Bluetooth, WiMax, 4G, or LTE (Long Term Evolution) have been discussed in this article as solutions to the communication demands of Smart City for IoT. This paper provides a detailed aspect of smart city with its requirements, architecture, smart city components and its open research challenges with opportunities. Further, the role of IoT for smart city is well elaborated. The potential application of smart cities with some practical experience is thoroughly discussed.