標題: A Virtual-Tree OFDMA PON System Architecture
作者: Yuang, Maria
Tien, Po-Lung
Chen, Jyehong
Shih, Ju-Lin
Hsu, Dar-Zu
Chen, Hsing-Yu
Wei, Chia-Chien
資訊工程學系
Department of Computer Science
關鍵字: Passive Optical Network (PON);External Modulation;Direct Modulation;Orthogonal Frequency Division Multiple Access (OFDMA)
公開日期: 2012
摘要: OFDM PON has been considered to be one of the most prominent next-generation broadband wired access solutions. However, based on the current tree-architecture, existing OFDM PON systems face severe challenges when increasing the scalability and data-rate performance. In this paper, we propose a novel virtual-tree architecture of an OFDMA PON system (VTOPS). Coupled with the use of inexpensive direct modulation, VTOPS simultaneously achieves high reliability, scalability, and spectrum efficiency (i.e., high data rate) in a cost-effective manner. Theoretical and experimental results demonstrate that, by applying the pre-emphasis algorithm and subchannel adaptive modulation, VTOPS achieves 40-Gb/s downlink and uplink transmissions using low-cost 10-GHz directly modulated lasers.
URI: http://hdl.handle.net/11536/20959
ISBN: 978-1-4577-2053-6
ISSN: 1550-3607
期刊: 2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
顯示於類別:會議論文