1-Tb/s WDM-OFDM-PON System With Subband Access Scheme and Flexible Subcarrier-Level Bandwidth Allocation

Author

Cheng Lei ; Minghua Chen ; Hongwei Chen ; Sigang Yang ; Ying Yu ; Shizhong Xie

Author_Institution

Tsinghua Nat. Lab. for Inf. Sci. & Technol. (TNList), Tsinghua Univ., Beijing, China

Volume

5

Issue

1

fYear

2013

fDate

Feb. 2013

Firstpage

7900208

Lastpage

7900208

Abstract

A novel subband access scheme for multiband high-speed orthogonal frequency division multiplexing (OFDM) passive optical network (PON) is proposed, where the granularity of the bandwidth allocation is as small as the bandwidth of just one subcarrier and the ONUs only receives the desired subcarriers according to the bandwidth allocation strategy from the whole downstream OFDM signal without band limitation. Since the ONUs do not have to receive a complete OFDM band, low-bandwidth and low-speed devices can be used to reduce ONU cost. The algorithm used in the scheme is also explained in detail, and a 1-Tb/s experimental system is successfully established to prove the feasibility of the proposed scheme.

Keywords

OFDM modulation; bandwidth allocation; passive optical networks; subcarrier multiplexing; wavelength division multiplexing; OFDM; ONU; WDM-OFDM-PON system; bit rate 1 Tbit/s; flexible subcarrier-level bandwidth allocation; multiband high-speed orthogonal frequency division multiplexing; passive optical network; subband access scheme; Bandwidth; Baseband; Channel allocation; High speed optical techniques; OFDM; Optical network units; Passive optical networks; Optical communications; multiplexing; orthogonal frequency division multiplexing (OFDM) passive optical network (PON);

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2238617

Filename

6407630