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- W35515769 abstract "[ENGLISH] In a Fiber to the Home (FTTH) system, the fiber is connected until the household users. A passive optical network (PON) is a particular type of FTTH networks that uses P2MP (point-to-multipoint fiber premises) in which unpowered optical splitters are used to share part of the infrastructure enable a single optical fiber to serve multiple premises. The evolution of PON systems across the years can be associated with the evolution in multiplexing technologies. In the first years with the use of TDM the achieved upstream and downstream aggregate bandwidth was in the order of 155 Mbit/s until 10 GBit/s in XG-PON standard. But with the implementation of WDM the capacities have been increased significantly until get bandwidths of 250 GBit/s and 500 GBit/s using ud-WDM with coherent detection. This new standards use advanced modulation and codification formats. This project will evaluate the new international standard ITU-T G.989 for next generation optical fiber access to the home (FTTH) network operating at 4x 10GBit/s, that uses time multiplexing and dense wavelength multiplexing (TWDM). The key commercial devices for its implementation will be identified and modelled. Next, the access network will be built in a computer simulator, different tests will be run, and the system will be optimized. Tasks: · Study of the state of art of optical access networks comparing different technologies, devices, and architectures. · Analysis of the new international standard ITU-T G.989 to review the optical spectrum management, devices and subsystems proposed. · Use of VPI simulator in order to build an access network architecture and realize different tests, linking it with · MATLAB to analyze the achieved results. · Optimization of the network built." @default.
- W35515769 created "2016-06-24" @default.
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- W35515769 date "2014-10-06" @default.
- W35515769 modified "2023-09-27" @default.
- W35515769 title "Analysis of the performances and tolerances of the 2nd generation passive optical networks (NGPON2) for FTTH systems" @default.
- W35515769 hasPublicationYear "2014" @default.
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