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, cilt.36, ss.289-300, 2018 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 36 Konu: 3
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1007/s11107-018-0799-z
  • Dergi Adı: PHOTONIC NETWORK COMMUNICATIONS
  • Sayfa Sayıları: ss.289-300

Özet

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.