Consumed power analysis for mobile radio system dimensioning

Cellular mobile radio networks are expected to increase the energy requirements due to their massive deployment. Then, it is required to improve their energy efficiency in order to favor the eco-sustainability and not to obstacle their economic impact. In this paper we study the impact of the power consumption in the design of mobile networks. The evaluation has been performed for GSM and LTE systems. The main aim is the analytical evaluation of the optimal cell radius accounting for the network sustainability and for both coverage and traffic constraints. Overall power consumption is expressed as the sum of static and dynamic terms. The former is due to BSs switch on and signaling, the latter is function of the traffic in the cell. The beneficial effects of power control on energy consumption are evaluated and compared with the non-power controlled case. Finally, reduction in power consumption for LTE respect to GSM is analyzed.

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