激光与光电子学进展, 2011, 48 (7): 070601, 网络出版: 2011-06-20
论OFDM-PON与WDM-PON 下载: 676次
Discussion on OFDM-PON and WDM-PON
光通信 无源光网 时分多址无源光网 波分复用无源光网 正交频分多址无源光网 光差拍干扰 optical communication passive optical network time division multiple access passive optical netw wavelength division multiplexing passive optical n orthogonal frequency division multiplexing network optical beat interference
摘要
论述正交频分复用无源光网(OFDM-PON)与波分复用无源光网(WDM-PON)的联系和区别,指出WDM-PON 实际上是一种光接入网的物理层技术,它只有和别的媒质访问控制(MAC)技术结合起来才能完成数据通信系统和网络的功能。而OFDM-PON是工作于正交频分多址(OFDMA)MAC技术的光接入网,它的光网络单元(ONU)虽然必须占据不同的光谱,但它不是WDM-PON。从光差拍干扰(OBI)和MAC两方面阐明OFDM-PON的概念,以利于OFDM-PON技术的开发和相关标准的制订。
Abstract
Similarity and difference between orthogonal frequency division multiplexing passive optical network (OFDM-PON) and wavelength division multiplexing passive optical network (WDM-PON) are dicussed, indicating that WDM-PON is actually a kind of physical layer technique which can perform the functions of data transmission system and network only by combining itself with some media access control (MAC) technique. In contrast, OFDM-PON is an optical access network working with the technique of orthogonal frequency division multiple accesses. Even its optical network units (ONUs) occupy different optical spectra, it is not a WDM-PON. Concept of OFDM-PON is clarified from two viewpoints: the optical beat interference (OBI) and MAC, to promote the development and standardization of OFDM-PON.
林如俭, 宋英雄, 张林. 论OFDM-PON与WDM-PON[J]. 激光与光电子学进展, 2011, 48(7): 070601. Lin Rujian, Song Yingxiong, Zhang Lin. Discussion on OFDM-PON and WDM-PON[J]. Laser & Optoelectronics Progress, 2011, 48(7): 070601.