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Techno-Economic and Energy Efficiency Analysis of Optimal Power Supply Solutions for Green Cellular Base Stations

机译：绿色蜂窝基站最优电源解决方案的技术经济和能效分析

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摘要

The widespread proliferation of internet access, affordable wireless gadgets, the user data demand and the corresponding extended cellular networks entailing significant energy consumption and carbon footprints. With the added benefits of renewable energy harvesting (REH) technology, telecom base stations (BSs) are predominantly supplied by green power sources to reduce operational expenditure (OPEX) and atmospheric pollution with guaranteed quality of service (QoS). Accordingly, this paper examines the plausibility of optimal power supply solutions such as standalone solar photovoltaic (PV), hybrid PV/wind turbine (PV/WT), hybrid PV/diesel generator (DG) and hybrid PV/electric grid (PV/EG) to feed the Long Term Evolution (LTE) BSs pertaining to technical, economic and environmental aspects in Bangladesh. An extensive Monte-Carlo based simulations are performed to evaluate wireless network performance in terms of throughput, energy efficiency (EE), energy efficiency gain (EEgain), average energy savings, radio efficiency varying system bandwidth (B) and BS transmission power (P-TX) considering the dynamic behavior of traffic intensity and renewable energy (RE) generation profile. By leveraging the cell zooming technique and a green traffic steering framework endeavors to minimize the net present cost and maximize the average energy savings as well. The simulation results reveal that the cell zooming technique attained energy savings yielding up to 36% and improvement of EEgain achieved about 23% with effective modeling of REH. Subsequently, a comprehensive comparison of the aforementioned schemes is pledged for further validation.
机译：互联网访问，经济实惠的无线小工具，用户数据需求和相应的扩展蜂窝网络的广泛扩散引起了显着的能量消耗和碳足迹。随着可再生能源收集（REH）技术的增加的益处，电信基站（BSS）主要由绿色电源提供，以减少运营支出（OPEX）和大气污染，保证服务质量（QoS）。因此，本文研究了最佳电源解决方案的合理性，例如独立的太阳能光伏（PV），混合PV /风力涡轮机（PV / WT），混合PV /柴油发电机（DG）和混合PV /电网（PV /例如）喂养孟加拉国技术，经济和环境方面的长期演进（LTE）BSS。在吞吐量，能效（EE），能效增益（Eegain），平均节能，无线电效率变化系统带宽（B）和BS传输功率（P）和BS传输功率（P）和BS传输功率方面进行了广泛的基于Carlo的模拟以评估无线网络性能。 -TX）考虑流量强度和可再生能源（RE）生成配置文件的动态行为。通过利用细胞缩放技术和绿色交通转向框架，尽量减少净目的成本并最大限度地提高平均节能。仿真结果表明，细胞变焦技术实现了能量节约，产量高达36％，即世纪的改善达到了约23％，效果有效建模。随后，对上述方案进行了全面的比较，以进行进一步验证。

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