The development of smart city is based on the use of smart networks, the strong introduction of ICT technology. In order for some city to become smart it is necessary to have good communication bases in the form of a quality smart network, it is necessary to embark on the integration of public services, installation of sensor systems and counters, achieve planned savings and reduce CO2 emissions. People living in smart city should have a simplified life for lightened and modern roads, switching to electric vehicles, facilitating work, etc. Technology deeply changes the way we communicate with our friends, family, colleagues from work. Many of us have some kind of smart device with us at any time being a cell phone, laptop, tablet. By developing technology, we have come to the ease of doing things everyday (we have smart street lights, smart parking lots.) It comes to trying to reduce the street cars by encouraging bicycles, taxis, buses. Increased use of wireless networks will require upgrades as the smart city will need large wireless networks to ensure the mobility and convenience consumers want and deliver networks to deliver the great benefits, security and reliability that companies, healthcare and telecommunications want as well as reliability of the electrical network. Each region will have to decide to what extent it can but also want to develop.