Power Saving Approach in LTE Using Switching ON/OFF eNodeB and Power UP/DOWN of Neighbors

Abstract

Evolution of wireless technologies during the last decade and the increase of wireless user's number as well as the traffic amount have led to a significant increase of energy consumption and thus more emission of CO2. Nowadays, reducing energy consumption became a must for both environmental awareness and for the reduction of the operational expenditure of network operators (OPEX). In this paper, we propound a method that consists in lowering down energy consumption in fourth generation cellular network. The main idea is to switch ON/OFF LTE-Advanced Base Station (BS). In parallel, an UP/DOWN power algorithm is implemented to fill coverage holes in the networks and also to maintain an acceptable quality for mobile users. Simulation results proves that our proposed algorithm can reduce significantly the energy consumption with a guarantee of Quality of Service (QoS).

Reducing Power Consumption in C-RAN Using Switch On/Off of MC-RRH Sectors and Small Cells

“…Switch on/off by cell is carried out combined with a tilt variation procedure using femtocells for the magenta curve [37]. For the red plot, the switch on/off by cell is applied only for low traffic periods [38]. Then, the curve in green describes the random switch on/off approach [39] where 1/3 of MC-RRHs are turned off randomly.…”