Towards greener optical access networks

Ennser, K.; Devlin, B.; Mangeni, S.

doi:10.1109/icton.2010.5549066

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Of course, OLT in the CO also gives an important contribution to power consumptions. In order to give a benchmark, the maximum power consumption of an OLT supplying 256 users in a commercial TDM-PON has been evaluated to be 200 W, implying that the power consumption per user is about 0.8 W [22].…”

Section: Operative Issuesmentioning

confidence: 99%

Passive Optical Access Networks: State of the Art and Future Evolution

2014

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In the very last years, optical access networks are growing very rapidly, from both the network operators and the research interests points of view. Fiber To The Home (FTTH) is already a reality in plenty of real contexts and there has been a further stimulus to the proposal of new solutions and the investigation of new possibilities, in order to optimize network performance and reduce capital and operational expenditure. A complete and systematic overview of passive optical access networks is presented in this paper, concerning both the hot research topics and the main operative issues about the design guidelines and the deployment of Passive Optical Networks (PON) architectures, nowadays the most commonly implemented approach to realize optical fiber links in the access networks. A comparison of advantages and disadvantages of different multiplexing techniques is discussed, with specific reference to WDM-based networks, almost universally considered as the enabling technology for future proof bandwidth requirements. An exhaustive summary is also given about the-state-of-the-art of modulation and encoding techniques recently proposed by the scientific community, as well as the open challenges (such as colorless and coolerless ONUs) for telecom companies and international standardization compliance.

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Section: Operative Issuesmentioning

confidence: 99%

Passive Optical Access Networks: State of the Art and Future Evolution

2014

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“…We then move on to demonstrate the feasibility of solar adequacy to meet energy needs for the chosen technology. Our earlier studies have detailed the use of solar for greener access networks[11][12][13].VI. CHOICE OF NETWORKING TECHNOLOGYThis section outlines some options for a high-speed access networks and estimates their power consumption using published specifications of representative commercial equipment.…”

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confidence: 99%

Sustainable green broadband solutions for bridging the digital divide in Africa: A technical survey of feasible and affordable broadband solutions for rural Africa

et al. 2013

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The opportunities are ripe for green communications in Africa. In a consortium of academics and researchers from UK and African Universities, the authors of this paper diligently take advantage of the abundant sun, and natural African environment to present potential, practical and feasible green solutions to enable rural communications in Africa. This will empower both urban and rural communities to access affordable broadband services and applications. This research contributes significantly to bridging the 'digital divide' while reducing the carbon footprint (CO 2 emissions) by the communications sector as a whole. Through appropriate understanding of state of the art broadband access technologies, energy requirements, carbon footprint, current demand and projected growth in the target areas, this research establishes a match for these requirements. Studies reveal the ability of the maturing solar power technology to meet this need and demand. Further still, this research compares power consumption of current broadband access network technologies. It is based on a chosen network model to estimate power consumption using published specifications of representative commercial equipment. This enables us to design off-the-shelf affordable broadband access solutions to address this gap. One further great challenge to be addressed by this research is enabling communication infrastructural presence in communities without electricity, which is a common phenomenon in Sub Saharan Africa.

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