Final answer:
Bandwidth maintenance in a cellular network is costly with an increase in IoT devices due to the need for high capacity to prevent network congestion.
Step-by-step explanation:
Bandwidth refers to the data transfer capacity of the network. When numerous devices are communicating simultaneously, sufficient bandwidth must be allocated to prevent network congestion and ensure data is transmitted efficiently.
Much like the challenge faced with the proliferation of cellular phone use crowding radio channels, as mentioned regarding the environmental threat to radio astronomy, there's an analogous challenge in cellular networks handling the surge of IoT devices.
As demand increases, so does the need for more infrastructure to accommodate these devices without compromising service quality or facing network failure. Moreover, comparing different service providers can create difficulties for customers.