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| Optimizing the Energy Efficiency of Heterogeneous Cellular Networks Based on the Base Station Density and Traffic Load |
| LI Yun WANG Junwei ZHAO Weiliang LIU Qilie |
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Abstract Poisson Point Process (PPP) is used to establish the distribution model of base stations in two-tier heterogeneous networks, and formulate the energy efficiency maximization problem based on the base station density and the traffic load. The influence of the base station density on the energy efficiency is analyzed to optimize the densities of the macro base stations and small base stations according to the traffic load. The optimal densities of the macro base stations and small base stations are deduced, which can optimize the energy efficiency under the constraint of the quality of service. Simulation results indicate that, under the constraint of the quality of service, reasonable deployment of macro and small stations can greatly improve the energy efficiency.
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Received: 01 March 2016
Published: 07 March 2017
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| Fund: The National Natural Science Foundation of China (61671096), The National Basic Research Program of China (2012CB316004), The Open Research Fundation of National Mobile Communications Research Laboratory, Southeast University (2015D07) |
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Corresponding Authors:
WANG Junwei
E-mail: wangjunwei1266@126.com
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