GATE: Greening At The Edge
Nirwan Ansari, Tao Han, and Mina Taheri

TL;DR
This paper reviews strategies and technologies for improving energy efficiency in last mile broadband access networks, addressing environmental and economic concerns caused by increasing data traffic.
Contribution
It provides a comprehensive overview of design, optimization, and emerging technologies for energy-efficient broadband access networks, including passive optical and wireless systems.
Findings
Analysis of energy-efficient design of passive optical networks
Discussion of enabling technologies for next-generation wireless access
Identification of emerging technologies for reducing energy consumption
Abstract
Dramatic data traffic growth, especially wireless data, is driving a significant surge in energy consumption in the last mile access of the telecommunications infrastructure. The growing energy consumption not only escalates the operators' operational expenditures (OPEX) but also leads to a significant rise of carbon footprints. Therefore, enhancing the energy efficiency of broadband access networks is becoming a necessity to bolster social, environmental, and economic sustainability. This article provides an overview on the design and optimization of energy efficient broadband access networks, analyzes the energy efficient design of passive optical networks, discusses the enabling technologies for next generation broadband wireless access networks, and elicits the emerging technologies for enhancing the energy efficiency of the last mile access of the network infrastructure.
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