In Fig. 4 we show the cell throughput, defined as the sum of the RLC PDUs transmitted by the UEs (i.e., in the uplink only) in the unit of time. As can be seen, the M2M traffic
is negligible with respect to the overall cell traffic, even for a high number of smart objects, which is realistic for many IoT applications. Furthermore, it is worth noting that the cell becomes saturated after 30 H2H UEs, since increasing the
number of H2H UEs to 40 does not change proportionally the throughput.