Mobile users are being on their devices anywhere they go, and smart cities are continuing to increase every day, and Wi-Fi connection will be broadcast in these cities; therefore, that one may be a challenge for secure, available, performance of Wi-Fi connection. Internet providers in Canada such as Shaw, Telus have been trying to provide free Wi-Fi for their customers when they go to outside home. An example for this would be shopping mall, this service shift customer’s cellular usage to minimizing.

Assume Wi-Fi will be broadcast in every city, that can be a milestone in internet connection history, and this can benefit many users. However, the downside is hard to maintain security, and network performance because the number of users can be millions at the same time. This number will affect the valuable bandwidth, delaying performance, and possibly exposing network security.

The internet providers need to make sure that they can manage the biggest network connection in the Internet of Things (IoT) age. A smart city can have billions of sensors, and they need to be connected together using different connection protocol (Wi-Fi, Zwave, Zigbee, MQTT, CoAP, Bluetooth, Cellular…). The top fastest internet speed that Shaw having is 600 Mbps, and this number is not stable during the day, so with the current technology will be enough for the IoT demand or not?  

Additionally, different types of users need to access different resources, and having restrictions based on their role. For instance, residences of the city have different role compare to visitors or contractors. Access control policies are not only important in this case, but also ensure smart cities technical teams be able to manage network security and performance.