Energy Efficiency of Heterogeneous Networks in LTE-Advanced
Energy Efficiency of Heterogeneous Networks in LTE-Advanced
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DOI：
10.1007/s11265-011-0637-3
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发表时间：
2011-12
期刊：
影响因子：
--
通讯作者：
C. Khirallah;J. Thompson
中科院分区：
文献类型：
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作者：
C. Khirallah;J. Thompson
传统上，移动运营商通过部署更多宏基站来应对移动数据流量的激增和农村用户数量的增长。这增加了蜂窝网络的总体能源消耗、运营成本和碳足迹。在本文中，我们研究了在同构和异构网络中根据流量负载条件减少活动宏蜂窝的数量和大小的解决方案。结果表示为使用长期演进先进技术的同质纯宏网络和纯微网络以及异构联合宏中继和微中继网络的总体节能增益。结果表明，在低到中等流量负载条件下，在基站使用睡眠模式减少活动小区的数量，结合小型小区的部署，可以在同质和异构网络中提供能量增益。然而，最显着的收益是在异构网络中观察到的。
Traditionally mobile operators have met the surge in mobile data traffic and the growing number of rural subscribers by deploying more macro base stations. This increases overall energy consumption, operational costs and carbon footprint of cellular networks. In this paper we investigate solutions for reducing the number and size of active macrocells following traffic load conditions in both homogeneous and heterogeneous networks. Results are presented as overall energy reduction gains for homogeneous macro-only and micro-only networks and heterogeneous joint macro-relay and micro-relay networks, using long-term-evolution-advanced technology. Results show that reducing the number of active cells using sleep mode at base stations, in low to medium traffic load conditions, combined with the deployment of small cells offer energy gains in both homogeneous and heterogeneous networks. However, the most significant gains are observed in heterogeneous networks.