Κατεύθυνση Ηλεκτρονική και Ραδιοηλεκτρολογία (Ρ/Η, με πρόσθετη εξειδίκευση στις Τηλεπικοινωνίες και στην επεξεργασία και διοίκηση της Πληροφορίας)
Library of the School of Science

2017-07-05

2017

Foteas Andreas

Ρεΐσης Διονύσιος, Αναπληρωτής Καθηγητής, ΕΚΠΑ
Φρατζεσκάκης Δημήτριος, Αναπληρωτής Καθηγητής, ΕΚΠΑ
Νισταζάκης Έκτορας, Καθηγητής, ΕΚΠΑ

Σχεδιασμός και FPGA υλοποίηση μονάδας επεξεργασίας μηνυμάτων PLOAM σε παθητικά οπτικά δίκτυα TDM-PON και TWDM-PON

Greek

Design & FPGA implementation for the PLOAM messaging Channel Processing Unit in TDM and TWDM Passive Optical Networks

The Passive Optical Networks are considered as the most effective solution for the access network for high bit rates. As Rassive Optical Networks (PONs) are refered the point-to-multipoint communication networks that cover the last mile of the infrastructures, which are comprised of optical fibers and passive elements. In these networks there are no active elements (amplifiers, repeaters, etc) appart from edge nodes. The continuous grouth of online services (multimedia data, VoIP, IPTV) has led to the need for further improvement of passive optical networks.
In the first part of the study a short reference is made to the technologies of the access networks with emphasis on the technologies of the passive optical networks. The contribution of this thesis is presented in the second part, where two architectures are proposed for the PLOAM physical level message processing unit, which is a basic building block of the ONU/ONT network optical units. The first architecture was designed and implemented in the context of the PANDA (Assymetric Passive Optical Network for xDSL and FTTH Access) (http://panda.cti.gr/) project and addresses the architecture of a TDM ONU in the XGPON and the second was designed and completed as part of the project COCONUT (COST-effective COhereNt Ultra-dense-WDM-PON for lambda-to-the-user access) (http://www.ict-coconut.eu/) and refers to the architecture of a hybrid WDM/TDM ONU.
An important contribution of this work is also the extension of the PLOAM protocol to meet the requirements of the next generation NGPON2. These networks provide the ability to dynamically bandwidth between users using multiple wavelengths. For NGPON2 functionalities are presented the modifications made to the ITU G.987.3 standard. Comparing COCONUT ONU with the ONU architecture of an XGPON network (PANDA) is verified that the additional functionalities of the WDM/TDM ONU are accomplished with 10% additional FPGA resources as well as energy consumption.

Networks and Telecommunications

PON, FPGA, PLOAM, Hybrid WDM/TDM, Embedded

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https://pergamos.lib.uoa.gr/uoa/dl/object/1704227