摘要
In this paper we propose a novel Dynamic Bandwidth Assignment （DBA） algorithm for Ethernet-based Passive Optical Networks （EPON） which offers multiple kinds of services. To satisfy crucial Quality of Service （QoS） requirement for Time Division Multiplexing （TDM） service and achieve fair and high bandwidth utilization simultaneously, the algorithm integrates periodic, for TDM service, and polling granting for Ethernet service. Detailed simulation shows that the algorithm guarantees carrier-grade QoS for TDM service, high bandwidth utilization and good fairness of bandwidth assignment among Optical Network Units （ONU）.
In this paper we propose a novel Dynamic Bandwidth Assignment （DBA） algorithm for Ethernet-based Passive Optical Networks （EPON） which offers multiple kinds of services. To satisfy crucial Quality of Service （QoS） requirement for Time Division Multiplexing （TDM） service and achieve fair and high bandwidth utilization simultaneously, the algorithm integrates periodic, for TDM service, and polling granting for Ethernet service. Detailed simulation shows that the algorithm guarantees carrier-grade QoS for TDM service, high bandwidth utilization and good fairness of bandwidth assignment among Optical Network Units （ONU）.
基金
This workis sponsored by National"863"High Technology Projects of China (2001AA122021 ,2004AA122320) .
