Sleep assistive dynamic bandwidth assignment scheme for passive optical network (PON)

Butt R. A., Faheem M., Ashraf M. W., Idrus S. M.

PHOTONIC NETWORK COMMUNICATIONS, vol.36, no.3, pp.289-300, 2018 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1007/s11107-018-0799-z
  • Journal Name: PHOTONIC NETWORK COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.289-300
  • Abdullah Gül University Affiliated: Yes

Abstract

In passive optical network (PON), in addition to efficient bandwidth management, a dynamic bandwidth assignment (DBA) scheme can also enhance the energy efficiency performance of the optical networks units (ONUs) during sleep mode. A few such green DBA schemes have been proposed in literature for EPON, however, ITU compliant PONs have not got attention. In this study, the role of a DBA scheme during the cyclic sleep mode for XGPON has been investigated. A sleep assistive (SA)-DBA scheme is proposed that not only improves the energy saving performance of cyclic sleep mode but also reduces the upstream delays and variance for all the type-2 (T2), type-3 (T3) and type-4 (T4) traffic classes. Although, the upstream delay of type-1 (T1) traffic class slightly increases, the average upstream delay of all the traffic classes remains below the set target delay limit of 56ms.