TY - JOUR
T1 - An energy and cost efficient WDM/OFDMA PON system
T2 - Design and demonstration
AU - Yuang, Maria C.
AU - Hsu, Dar Zu
AU - Tien, Po-Lung
AU - Chen, Hsing Yu
AU - Wei, Chia Chien
AU - Chen, Shin Hao
AU - Chen, Jye-Hong
PY - 2013
Y1 - 2013
N2 - In this paper, we propose an energy and cost efficient WDM/OFDMA PON system, referred to as NEWOPS. Based on a new two-tiered semi-tree architecture, NEWOPS allows a large number of ONUs to be connected to OLT using only a handful of colorless transceivers. Due to the architecture, NEWOPS not only facilitates high spectral efficiency and flexible sub-channel bandwidth allocation, but also reduces the Rayleigh backscattering (RB) problem and achieves high energy and cost efficiency. Experimental results demonstrate that, taking only 5-GHz bandwidth for each wavelength, NEWOPS successfully achieves 20-Gb/s downstream and 10-Gb/s upstream OFDM-xQAM transmissions via the same fiber trunk. We depict that, to support 40 ONUs for example, NEWOPS achieves energy efficiency that is three to six times higher than that of a typical 10-Gb/s WDM/OFDM PON.
AB - In this paper, we propose an energy and cost efficient WDM/OFDMA PON system, referred to as NEWOPS. Based on a new two-tiered semi-tree architecture, NEWOPS allows a large number of ONUs to be connected to OLT using only a handful of colorless transceivers. Due to the architecture, NEWOPS not only facilitates high spectral efficiency and flexible sub-channel bandwidth allocation, but also reduces the Rayleigh backscattering (RB) problem and achieves high energy and cost efficiency. Experimental results demonstrate that, taking only 5-GHz bandwidth for each wavelength, NEWOPS successfully achieves 20-Gb/s downstream and 10-Gb/s upstream OFDM-xQAM transmissions via the same fiber trunk. We depict that, to support 40 ONUs for example, NEWOPS achieves energy efficiency that is three to six times higher than that of a typical 10-Gb/s WDM/OFDM PON.
KW - Energy efficiency
KW - Orthogonal Frequency Division Multiple Access (OFDMA)
KW - Passive Optical Network (PON)
UR - http://www.scopus.com/inward/record.url?scp=84881052592&partnerID=8YFLogxK
U2 - 10.1109/JLT.2013.2273932
DO - 10.1109/JLT.2013.2273932
M3 - Article
AN - SCOPUS:84881052592
SN - 0733-8724
VL - 31
SP - 2809
EP - 2816
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 16
M1 - 2273932
ER -
