@inproceedings{11d0be3e9d9a4be7989d01cce265e7b2,
title = "A virtual-tree OFDMA PON system architecture",
abstract = "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.",
keywords = "Direct Modulation, External Modulation, Orthogonal Frequency Division Multiple Access (OFDMA), Passive Optical Network (PON)",
author = "Yuang, {Maria C.} and Po-Lung Tien and Jyehong Chen and Shih, {Ju Lin} and Hsu, {Dar Zu} and Chen, {Hsing Yu} and Wei, {Chia Chien}",
year = "2012",
month = dec,
day = "1",
doi = "10.1109/ICC.2012.6363944",
language = "English",
isbn = "9781457720529",
series = "IEEE International Conference on Communications",
pages = "3116--3121",
booktitle = "2012 IEEE International Conference on Communications, ICC 2012",
note = "null ; Conference date: 10-06-2012 Through 15-06-2012",
}