Title :
WDM overlay of distributed base stations in deployed passive optical networks using coherent optical OFDM transceivers
Author :
Fábrega, Josep M. ; Moreolo, Michela Svaluto ; Chochol, Marcin ; Junyent, Gabriel
Author_Institution :
Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Castelldefels, Spain
Abstract :
It is proposed to reuse the deployed PON infrastructure by overlaying distributed radio base stations by means of very dense WDM with narrow channel spacings. In order to cope with that while minimizing its impact onto the performance of legacy equipment, coherent optical OFDM technology is used. Furthermore, the case of a practical implementation using CPRI is analyzed by means of simulations for several use cases. Within the analyzed use cases, a rural PON with 50 km reach has proven to support splitting ratios of up to 32 users, whereas an urban radio access network has been demonstrated to support ratios of up to 256 users within a radius of 2 km.
Keywords :
OFDM modulation; optical fibre networks; optical modulation; radio access networks; wavelength division multiplexing; CPRI; PON infrastructure; WDM overlay; coherent optical OFDM transceiver; distributed radio base station; legacy equipment; optical OFDM technology; passive optical network; rural PON; splitting ratio; urban radio access network; Integrated optics; OFDM; Optical fibers; Optical network units; Passive optical networks; coherent optical OFDM; passive optical networks; phase modulation; radio access 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.2012.6253934
