Green Telecommunications: Energy Efficiency Evaluation of Cellular Networks Based on Spatial Distributions of Traffic Load and Power Consumption

Energy efficiency has gained its significance when service providers' operational costs burden with the rapidly growing data traffic demand in cellular networks.

In our research, we propose an energy efficiency model for Poisson-Voronoi tessellation (PVT) cellular networks considering spatial distributions of traffic load and power consumption. The spatial distributions of traffic load and power consumption are derived for a typical PVT cell, and can be directly extended to the whole PVT cellular network based on the Palm theory. Furthermore, the energy efficiency of PVT cellular networks is evaluated by taking into account traffic load characteristics, wireless channel effects and interference. Numerical results show that the burstiness of traffic load causes the energy efficiency of PVT cellular networks to fluctuate over a wide range.

Xiaohu Ge is a Professor with the Department of Electronics and Information Engineering at Huazhong University of Science and Technology (HUST), China. He received his PhD degree in Communication and Information Engineering from HUST in 2003. He has worked at HUST since Nov. 2005. Prior to that, he worked as an assistant researcher at Ajou University (Korean) and Politecnico Di Torino (Italy) from Jan. 2004 to Oct. 2005. He was a visiting researcher at Heriot-Watt University, Edinburgh, UK from June to August 2010. He is presently also a Visiting Professor at University of Agder.

His research interests are in the area of mobile communications, traffic modeling in wireless networks, green communications, and interference modeling in wireless communications. He has published about 50 papers in refereed journals and conference proceedings and has been granted about 10 patents in China. He is leading several projects funded by NSFC, China MOST, and industries. He is taking part in several international joint projects, such as the RCUK funded UK-China Science Bridges: R&D on (B)4G Wireless Mobile Communications and the EU FP7 funded project: Security, Services, Networking and Performance of Next Generation IP-based Multimedia Wireless Networks.

Prof. Ge is currently serving as an Associate Editor for International Journal of Communication Systems (John Wiley & Sons) and KSII Transactions on Internet and Information Systems. Since 2005, he has been actively involved in the organisation of more than 10 international conferences, such as Publicity Chair of IEEE Europecomm 2011 and Co-Chair of workshop of Green Communication of Cellular Networks at IEEE GreenCom 2010. He is a Senior Member of the IEEE, a Senior member of the Chinese Institue of Electronics, a Senior member of the China Institute of Communications, and a member of the NSFC and China MOST Peer Review College.

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Kraj: Fakulteta za elektrotehniko
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