OFDM for Next-Generation Optical Access Networks
OFDM for Next-Generation Optical Access Networks
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DOI：
10.1109/jlt.2011.2166375
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发表时间：
2012-02-15
影响因子：
4.7
通讯作者：
Cvijetic, Neda
中科院分区：
文献类型：
--
作者：
Cvijetic, Neda
在本教程概述中，介绍了基于光正交频分复用（OFDM）的光接入的原理、优势、挑战和实际要求，重点介绍了正交频分多址（OFDMA）在下一代无源光网络（PON）中的应用。概述了OFDM的一般原理，包括正交性、循环前缀的使用、频域均衡和多用户OFDMA，然后概述了用于下一代PON的各种光OFDM（A）收发器架构。概述了OFDMA-PON中高速数字信号处理器（DSP）和数据转换器的功能要求。还提供了这种“软件定义”的基于DSP的光接入平台的技术经济前景。
In this tutorial overview, the principles, advantages, challenges, and practical requirements of optical orthogonal frequency division multiplexing (OFDM)-based optical access are presented, with an emphasis on orthogonal frequency division multiple access (OFDMA) for application in next-generation passive optical networks (PON). General OFDM principles, including orthogonality, cyclic prefix use, frequency-domain equalization, and multiuser OFDMA are summarized, followed by an overview of various optical OFDM(A) transceiver architectures for next-generation PON. Functional requirements are outlined for high-speed digital signal processors (DSP) and data converters in OFDMA-PON. A techno-economic outlook for such a "software-defined," DSP-based optical access platform is also provided.