The demands for high data rates and ultra-reliable coverage become demanding issues due to increase number of population in the world by 2020. The huge demand for high quality life makes the administrator and the governments to put carefully planning in cities in a smarter way. As a premier agent for stimulating a quality of life compatible with a resource efficient economy, the smart city phenomenon has recently seized the imagination of the academia and the industry significantly. As the Internet of things (IoT) and Tactile Internet are predictable to be a primary driving force for future cities, advanced communication methods will play a crucial role in assisting real-time data acquisition and utilization from distributed sensors. However, smart cities will also have to function within the limitations of the national economy and available resources. Consequently, the challenges in the realization of smart cities are many and varied.

In general, low energy consumption, constrained bandwidth, latency and budgetary limitations are predominating. In order to overcome these hurdles, it is essential that new ideas and theories for optimizing the network in energy, spectral, latency and monetary terms are presented to achieve a robust environment monitoring and sustainable transportation network, among other provisions. This led the researchers to pave the way for future wireless networks under the umbrella of 5G communications as well. This is an amalgamation of a multitude of technologies ranging from device-level algorithms such as low power transmissions to system-level architectures such as software-defined networking (SDN), the challenges posed by each of these techniques are critical. The smart city idea is also known to work at the intersection of various techniques such as device-to-device (D2D) communications, massive multiple-input multiple-output (MIMO), millimeter wave (mmWave) communications, full-duplex transmissions and Internet of Things (IoT) to name a few.