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Smart Grid in radio access networks (SG-RAN): Smart energy management at cell-sites

机译：无线电接入网络中的智能电网（SG-RAN）：细胞网站的智能能量管理

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In this paper, we research on an interdisciplinary field of how the Smart Grid can help energy cost reduction in wireless communications. We study how the advances in the Smart Grid such as the information on predicted electricity price can be used to help reduce the energy cost of the cellular networks. Particularly, smart energy management at cell-sites is studied to minimize the electricity cost for mobile operators by leveraging time-varying electricity prices in the Smart Grid. We first propose a theoretical framework to optimally manage energy at a single cell-site (without and with energy harvester, respectively) by judiciously choosing which power source (the Power-Grid or a storage-battery) to use, when and how much to use in the cell-site; as well as controlling when and how much to charge the storage-battery. Moreover, we extend the framework from a single cell-site to a network including multiple cell-sites with different electricity prices or energy storage capacity, etc., where cell association, power control, and scheduling can be jointly considered to provide load shifting and cell ON/OFF to achieve mobile network operation with the lowest electricity cost.
机译：在本文中，我们研究了智能电网如何帮助无线通信减少能量降低的跨学科领域。我们研究了智能电网的进步，例如有关预测电价信息的进步，可用于帮助降低蜂窝网络的能量成本。特别地，研究了细胞网站的智能能量管理，以通过利用智能电网的时变电价来最小化移动运营商的电力成本。我们首先提出了理论框架，通过明智地选择要使用的电源（电网或存储电池）使用，何时以及多少来最佳地管理单个电池站点（分别没有和能源收割机）的能量。在细胞网站中使用;以及控制何时以及多少收费存储电池。此外，我们将框架从单个电池站点扩展到包括具有不同电价或能量存储容量等的多个单元站点的网络，其中可以共同考虑单元关联，功率控制和调度，以提供负载换档和单元开/关以实现具有最低电力成本的移动网络运行。

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