International Research Journal of Education and Technology

The field of computer networks and wireless communication is constantly evolving, with researchers focusing on the integration and overcoming challenges to achieve global connectivity. Innovative technologies such as Wi-Fi, Bluetooth, and 5G have revolutionized wireless communication, facilitating rapid data transmission and seamless interaction. The design of wireless networks, encompassing cellular, ad-hoc, and mesh systems, facilitates the integration of IoT devices and the development of smart cities. The article discusses security issues, including data breaches and unauthorized access, and proposes solutions like encryption and firewalls. It also covers significant protocols such as TCP/IP and advancements in network virtualization and software-defined networking (SDN) that improve scalability.

Keywords- 5G, IoT Devices, Encryption.