Title :
An OFDMA-PON with non-preselected independent ONU sources and centralized feedback wavelength control: Dimensioning and experimental results
Author :
Cano, I. ; Santos, M.C. ; Escayola, X. ; Polo, V. ; Giacoumidis, E. ; Kachris, C. ; Tomkos, I. ; Prat, J.
Author_Institution :
Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
A simple and low cost method for wavelength control based on centralized OLT monitoring and feedback of economical random non-preselected independent ONU sources is presented. The technique was dimensioned and experimentally tested in an OFDMA-PON with 1 Gb/s ONUs and 30 km of fibre along with the minimum optical spectral gap between consecutive ONU wavelengths. Results indicate that this method reduces the spectral overlap probability and increasing the number of users and cost-effectiveness of a PON.
Keywords :
OFDM modulation; centralised control; feedback; frequency division multiple access; passive optical networks; probability; telecommunication control; OFDMA-PON; bit rate 1 Gbit/s; centralized OLT monitoring; centralized feedback wavelength control; distance 30 km; minimum optical spectral gap; nonpreselected independent ONU sources; optical line terminal; optical network unit; orthogonal frequency division multiplexing access; passive optical networks; spectral overlap probability; Adaptive optics; Bit error rate; Integrated optics; Optical fibers; Optical network units; Passive optical networks; OBI; OFDMA; Optical Beat Interference; Orthogonal Frequency Division Multiplexing; PON; Passive Optical Networks;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6253713
