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

摘要

Energy efficiency has gained its significance when service providers'operational costs burden with the rapidly growing data traffic demand incellular networks. In this paper, we propose an energy efficiency model forPoisson-Voronoi tessellation (PVT) cellular networks considering spatialdistributions of traffic load and power consumption. The spatial distributionsof traffic load and power consumption are derived for a typical PVT cell, andcan be directly extended to the whole PVT cellular network based on the Palmtheory. Furthermore, the energy efficiency of PVT cellular networks isevaluated by taking into account traffic load characteristics, wireless channeleffects and interference. Both numerical and Monte Carlo simulations areconducted to evaluate the performance of the energy efficiency model in PVTcellular networks. These simulation results demonstrate that there existmaximal limits for energy efficiency in PVT cellular networks for givenwireless channel conditions and user intensity in a cell.