What Does The IoT Ultra-High Density Requirement Mean?
IoT networks are expected to connect billions of devices in the next several years. One ambitious 5G requirement is to serve massive Internet of Things (IoT). Accordingly, it demands an ultra-low energy (10+ years of battery life), deep coverage and ultra-high density (~1 million nodes per sq. Km?). As such, 5G networks require each base station to be able to receive a high volume of access requests from end-device in a short period, say 30 minute. Are these really necessary or even possible with the existing IoT technologies? Obviously these requirements are highly expected for the IoT networks operated in high population density cities, where a large portion of IoT end-devices will be deployed. For example, as shown in the table below, the population density in Chennai, India is 25,854 per Km 2 . If in average it is assumed that one IoT device per capita and the coverage of one IoT base station is 4 Km in radius, the number of the served IoT devices per base station is ex