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 |