Open AccessDynamic λ-OFDMA with selective multicast overlaid
Author(s) -
Xiangjun Xin,
Lijia Zhang,
Bo Liu,
Jianjun Yu
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.007847
Subject(s) - multicast , optical line termination , splitter , computer science , passive optical network , wavelength division multiplexing , optics , orthogonal frequency division multiplexing , computer network , signal (programming language) , upstream (networking) , unicast , channel (broadcasting) , physics , wavelength , programming language
This paper experimentally demonstrates a novel dynamic λ-OFDMA architecture with selective differential phase shift keying (DPSK) overlaid and colorless optical network unit (ONU). The wavelength can be dynamically assigned to the splitter node in demand through a group of optical switches. Multicast control is realized through an alternative local oscillator at the optical line terminal (OLT). The 10-Gb/s × 4-channel 16QAM-OFDM unicast signal with 2.5-Gb/s DPSK overlaid and 1.25-Gb/s upstream signal have been transmitted over 25-km fiber successfully.