Base Station Energy Performance Improvement with Optimum Switching Frequency based on the Concept of Cell Zooming

The concept of sleep mode is widely applicable in a cellular network in which the base station can be turned off if certain traffic and power conditions are met. So this technique is most often used for power saving. On the other hand, the concept of cell zooming is emerging as a very promising technology to reduce power consumption. In cell zooming, the original size of the cell can be changed according to the incoming or outgoing traffic load of that particular cell both for homogenous and heterogeneous networks. So, in this process the cell size is increased or decreased based on the traffic intensity of the cell. In this paper an algorithm is proposed which merges the concept of cell zooming and sleep mode together for significant power reduction in a cellular network. The algorithm is examined for three different traffic conditions to calculate the power saving. Keywords—Sleep Mode, Cell Zooming, Heterogenous network, HomogeneousNetwork, PowerEfficiency, SwithingFrequency