DocumentCode :
1415260
Title :
Energy-efficient next-generation optical access networks
Author :
Skubic, Björn ; De Betou, Einar In ; Ayhan, Tolga ; Dahlfort, Stefan
Volume :
50
Issue :
1
fYear :
2012
fDate :
1/1/2012 12:00:00 AM
Firstpage :
122
Lastpage :
127
Abstract :
Energy efficiency has become an increasingly important aspect of network design, due to both the increasing operational costs related to energy consumption and the increasing awareness of global warming and climate change. This article addresses the energy consumption of different next-generation optical access solutions beyond 10G TDM PONs. It is assumed that next-generation optical access should be able to provide sustainable data rates up to 1 Gb/s per subscriber with a passive fan-out of at least 1:64. Promising system candidates that meet these criteria are compared and analyzed in terms of energy consumption. Candidate PON solutions are also compared to architectures based on point-to-point fiber. A systematic approach is developed for the energy consumption comparison. The analysis is based on estimates of power consumption for key components in next-generation systems. Among the considered candidates, we find that WDM-PON based on RSOA, stacked 10G TDM-PON, and point-to-point fiber offer the lowest power per line potential.
Keywords :
next generation networks; optical communication; passive optical networks; PON solution; climate change; energy consumption; energy efficiency; energy-efficient next-generation optical access networks; global warming; network design; next-generation optical access solution; next-generation system; point-to-point fiber; power consumption; sustainable data; Design methodology; Energy consumption; Energy efficiency; Optical fibers; Optical network units; Passive optical networks; Wavelength division multiplexing;
fLanguage :
English
Journal_Title :
Communications Magazine, IEEE
Publisher :
ieee
ISSN :
0163-6804
Type :
jour
DOI :
10.1109/MCOM.2012.6122542
Filename :
6122542
Link To Document :
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