| 摘要 |
In a passive optical network that includes a plurality of optical network units (ONUs) coupled to an optical line terminal (OLT), dynamic bandwidth allocation (DBA) methods and algorithms designed to support a short delay as well as best effort services, while maintaining fairness between subscribers. In a preferred embodiment, a DBA allocation method comprises the steps of calibrating requests (202) issued by each of the ONUs to obtain respective calibrated requests, allocating a bandwidth amount (204) to each ONU based on the calibrated requests using an allocation scheme selected from the group consisting of an under-utilization allocation scheme and an over-utilization allocation scheme, and based on the bandwidth allocation, granting (206) the ONUs a second plurality of constant delay grants per each cycle. |
