Fig. 5From: Energy-efficient power allocation for massive M2M communication over LTE-A cellular uplinkThe total energy efficiency with different MTCG’s bandwidths. The MTCDs are uniformly distributed in 100-m radius of the MTCG, and the MTCG is uniformly distributed in 1000-m radius of the BS. The payload of each MTCD is 300 bit/TTI, and the number of groups of MTCDs is K=10Back to article page