Research Article
DSP Methods for the Evolution from Conventional TDM-PON to DSP-enhanced TDM-PON
@INPROCEEDINGS{10.1109/ChinaCom.2013.6694691, author={Juhao Li and Hui Yang and Bangjiang Lin and Yangsha Wan and Yongqi He and Zhangyuan Chen}, title={DSP Methods for the Evolution from Conventional TDM-PON to DSP-enhanced TDM-PON}, proceedings={8th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2013}, month={11}, keywords={passive optical network (pon) digital signal processing (dsp) time-division-multiplexing pon (tdm-pon) evolution}, doi={10.1109/ChinaCom.2013.6694691} }- Juhao Li
Hui Yang
Bangjiang Lin
Yangsha Wan
Yongqi He
Zhangyuan Chen
Year: 2013
DSP Methods for the Evolution from Conventional TDM-PON to DSP-enhanced TDM-PON
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2013.6694691
Abstract
Recently, digital signal processing (DSP) methods have attracted a lot of attention for next-generation passive optical network (PON). To achieve high spectrum-efficiency colorless transmission, we combine the time-division-multiplexing (TDM) architecture with advanced DSP methods to propose a DSP-enhanced TDM–PON, in which DSP-based symbols are transmitted in different time slots instead of on-off-key (OOK) bits in conventional TDM-PON. Four DSP methods with frequency-domain equalization (FDE) are discussed in terms of computational complexity, peak-to-average ratio (PAPR), and flexibility. A DSP-based evolution scheme from conventional TDM-PON to DSP-enhanced TDM-PON is proposed and experimentally demonstrated by upgrading the optical line terminal (OLT) to support both OOK and DSP-based signals, which can maintain the current optical distribution network (ODN) and minimize the impact for the existing service and equipment.