Dynamic bandwidth allocation for NG-PONs with channel bonding

A Zaouga, A De Sousa, M Najjar… - IEEE Communications …, 2021 - ieeexplore.ieee.org
IEEE Communications Letters, 2021ieeexplore.ieee.org
Channel bonding is a recently proposed technique to provide higher aggregated line rates
in NG-PONs by allowing ONUs to operate simultaneously in multiple wavelengths. On the
other hand, the Dynamic Bandwidth Allocation (DBA) algorithm allocates to each ONU the
grant time interval on each upstream frame that the ONU can use to transmit its data in the
upstream direction. Channel bonding imposes a new challenge in the DBA algorithm as the
grant time interval allocated to a ONU must be the same in all its channel-bonded …
Channel bonding is a recently proposed technique to provide higher aggregated line rates in NG-PONs by allowing ONUs to operate simultaneously in multiple wavelengths. On the other hand, the Dynamic Bandwidth Allocation (DBA) algorithm allocates to each ONU the grant time interval on each upstream frame that the ONU can use to transmit its data in the upstream direction. Channel bonding imposes a new challenge in the DBA algorithm as the grant time interval allocated to a ONU must be the same in all its channel-bonded wavelengths. In this work, we propose a new DBA algorithm for NG-PONs supporting data services which is a combination of a proportional fairness strategy and a max-min fairness strategy and guarantees the constraints imposed by channel bonding. We illustrate the merits of the new algorithm with two cases based on simulation. The results show that channel bonding can provide better QoS performance to data services even in cases where it is not strictly required.
ieeexplore.ieee.org
以上显示的是最相近的搜索结果。 查看全部搜索结果