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Evaluation of ONU power saving modes for gigabit-capable passive optical networks

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2 Author(s)

Energy efficiency has become an increasingly important aspect of designing access networks, due to both increased concerns for global warming and increased network costs related to energy consumption. Comparing access, metro, and core, the access constitutes a substantial part of the per subscriber network energy consumption and is regarded as the bottleneck for increased network energy efficiency. One of the main opportunities for reducing network energy consumption lies in efficiency improvements of the customer premises equipment. Access networks in general are designed for low utilization while supporting high peak access rates. The combination of large contribution to overall network power consumption and low utilization implies large potential for CPE power saving modes where functionality is powered off during periods of idleness.

Published in:

Network, IEEE  (Volume:25 ,  Issue: 2 )

Date of Publication:

March-April 2011

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