Flexible ring-tree TWDM network architecture for next generation optical access network

Author

Xintian Hu ; Xue Chen ; Zhiguo Zhang ; Liqian Wang ; Jinsong Bei

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2014

fDate

9-10 May 2014

Firstpage

1

Lastpage

3

Abstract

To achieve higher capacity, longer reach and flexible on-demand wavelength and timeslot provision a ring-tree time and wavelength division multiplexing (TWDM) optical access network architecture is proposed in this paper. Using active remote nodes (RNs) along fiber ring, the pressures from large split and high fiber loss are relieved and add/drop wavelengths at different RNs can be dynamically assigned. By simulations, it is verified that the architecture can provide access services to 8192 optical network units (ONUs) of 70km reach at 10Gbps, and dynamic wavelength and bandwidth allocation (DWBA) can reduce queuing delay and packet loss.

Keywords

bandwidth allocation; next generation networks; optical fibre subscriber loops; time division multiplexing; wavelength division multiplexing; DWBA; ONU; RN; add-drop wavelength; dynamic wavelength and bandwidth allocation; fiber loss; flexible on-demand wavelength; flexible ring-tree TWDM network architecture; next generation optical access network; optical network units; packet loss reduction; queuing delay reduction; remote nodes; ring-tree; time and wavelength division multiplexing; timeslot provision; Bandwidth; Delays; Optical fiber amplifiers; Optical network units; TWDM; dynamic wavelength and bandwidth allocation; matrix optical switch; optical access network; ring-tree; wavelength converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Optical Communication Conference (WOCC), 2014 23rd

Conference_Location

Newark, NJ

Type

conf

DOI

10.1109/WOCC.2014.6839932

Filename

6839932