Energy Efficient Operation of Cellular Network Using On/Off Base Stations

Abstract

To allow rapid growth of the number of base stations, reducing the energy consumption of the stations, as the main energy consumers in cellular networks, has become an important research topic. In this paper, we attempt to find an adaptive cell zooming method to reduce the energy consumption of base stations. The cell zooming mechanism was formulated as an optimization problem with consideration of varying traffic patterns and interference, as well as the service availability of the whole area. Simulations were then conducted to verify the performance of the proposed cell zooming method. The simulations considered varying traffic conditions, both timely and spatially, in traditional 19-cell configuration. The proposed scheme demonstrated reduction of energy consumption of up to 4.72 times for urban environments and 3.78 times for rural environments against traditional static cell operation.

The Resource Mapping Algorithm of Wireless Virtualized Networks for Saving Energy in Ultradense Small Cells

“…Reference [12] uses a stochastic geometry model to analyze the sleeping strategies of cellular networks. Reference [13] enlarges or shrinks its cell zooming according to the request of regional cells to achieve energy saving effect. Periodical sleep of the base stations is another method to achieve energy saving effects [14,15].…”

“…As the network system is designed for peak load, generally speaking the average load of the network is much lower than the busy load. Based on this, some scholars point out that when there are less active users, they can reduce the number of antenna configurations or sleep base stations directly to achieve the effect of energy saving [8][9][10][11][12][13][14][15]. When the base stations turn into sleeping state, the Quality of Experience of active users inside the cell will become worse.…”

Performance Measurement of Small Cell Power Management Mechanism in 5G Cellular Networks using Firefly Algorithm

“…In cellular networks, reducing energy consumption is a challenging topic of interest and is beneficial for both telecommunication operators and the global environment [1]. Also, in recent years, there has been a tremendous increase in the usage of mobile data, which is predominantly determined by smart phones, which offer user-friendly internet access and a variety of multimedia applications.…”

“…Also, in recent years, there has been a tremendous increase in the usage of mobile data, which is predominantly determined by smart phones, which offer user-friendly internet access and a variety of multimedia applications. On the whole, information and communication technology (ICT) is accountable for about 2% of CO2 emissions globally, and it will reach 4% in 2021 [1]. The conventional BSs have not been able to offer quality of service (QOS) to mobile users.…”