New Macrocell Downlink Energy Consumption Minimization with Cell DTx and Power Control

Abstract : Power control (PC) and discontinuous transmission (DTx) can reduce the power consumption of a base station (BS). When both are used, there is, for each user, a trade-off between service time and transmit power in order to minimize the energy consumption of the base station. In this paper, we analyse this trade-off and we propose a new efficient algorithm for the computation of the optimal service time and transmit power of all users. We show that in most cases, closed-form expressions can be used. For others, we prove that the search for the optimum can be changed into a root-finding problem which can be solved efficiently with the Newton's method. Numerical results show that, compared to the use of DTx only, the proposed strategy allows to save up to 4% (7W) of the total energy consumption.
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Communication dans un congrès
ICC 2017, IEEE International Conference on Communications, May 2017, Paris, France. IEEE ICC 2017 Proceedings, 〈http://icc2017.ieee-icc.org/〉
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Rémi Bonnefoi, Christophe Moy, Jacques Palicot. New Macrocell Downlink Energy Consumption Minimization with Cell DTx and Power Control. ICC 2017, IEEE International Conference on Communications, May 2017, Paris, France. IEEE ICC 2017 Proceedings, 〈http://icc2017.ieee-icc.org/〉. 〈hal-01486616〉

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