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Potential challenges towards next generation optical access technologies and architectures are reviewed based on operator requirements. Additionally the impact of new business models on network architecture is discussed.
In this paper a cost comparison of flexible and fixed fiber access network designs is presented. Different cost types are analyzed over a period of time and the impact of different penetration scenarios is investigated. The results show, that a fixed Optical Distribution Network design has significant cost advantages compared to a flexible design.
Today's available fibre access technologies are based on point-to-point, GPON, EPON or active node solutions. This paper will focus on challenges in future access networks from an architectural, technological and economical point of view.
This paper reports on a FTTH field trial with GPON technology in the network of Deutsche Telekom AG. Focus of this trial was to gain practical experience regarding: GPON technology, fibre installation in existing ducts with micro duct technology, fibre cabling in customer buildings and impact on operational processes.
The energy consumption of FTTH network variants is compared with respect to the average access bit rate. The results show that passive optical networks are more energy efficient than point-to-point or active optical access networks.
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