Dynamic wavelength and bandwidth allocation versus OSU-ONU cyclic sleep in TWDM-PONs: an experimental evaluation

Author

Kondepu, Koteswararao ; Valcarenghi, Luca ; Castoldi, Piero

Author_Institution

Scuola Superiore Sant´Anna, Pisa, Italy

fYear

2015

fDate

11-14 May 2015

Firstpage

162

Lastpage

167

Abstract

In this paper, a dynamic wavelength and bandwidth allocation with only Tuning ONU Buffering (DWBA-TOB) scheme and an OSU-ONU Synchronous Cyclic Sleep (OOCS) sleep scheme are compared as alternative methods for improving Optical Line Termination (OLT) energy efficiency. Experimental results show that, if ONUs are slow tuning devices and reconfigurations are frequent, the OOCS scheme outperforms DWBA-TOB scheme in terms of both the average frame delay and the average energy savings.

Keywords

bandwidth allocation; passive optical networks; time division multiplexing; wavelength division multiplexing; DWBA-TOB scheme; OLT energy efficiency; OOCS sleep scheme; OSU-ONU synchronous cyclic sleep; TWDM-PON; average energy savings; average frame delay; dynamic wavelength and bandwidth allocation with only tuning ONU buffering; optical line termination; Delays; Logic gates; Optical buffering; Optical network units; Passive optical networks; Switching circuits; Tuning; Cyclic Sleep; DWBA; Energy Savings; TWDM PONs;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Network Design and Modeling (ONDM), 2015 International Conference on

Conference_Location

Pisa

Type

conf

DOI

10.1109/ONDM.2015.7127292

Filename

7127292