Cellular communication refers to the process by which mobile devices, such as smartphones, connect to a network to send and receive data. This is achieved through a system of cell towers that transmit signals over radio waves. Each tower covers a specific area, known as a cell, allowing multiple users to communicate simultaneously without interference. When a user makes a call or sends a message, their device converts the information into a signal that travels to the nearest cell tower. The tower then relays the signal to the appropriate network, ensuring that the communication reaches its intended recipient efficiently.