Networking

How to Slice the Day: Optimal Time Quantization for Energy Saving in the Internet Backbone Networks

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Executive Summary

Load Adaptive Energy Saving (LAES) schemes has been widely considered as a solution to reduce the energy consumption in networks. In LEAS, the time is sliced into time periods according to the daily pattern of traffic loads, such as peak and off-peak traffic, and energy saving operations is typically activated during the off-peak traffic. The effectiveness of LAES depends on the number of time slices precisely. A larger number of small time slices is desirable due to a better adaptiveness to traffic fluctuations. At the same time, energy saving operations should not be too frequent, as they have impact on routing stability and operational procedures.

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