Oversubscription Dimensioning of Next-Generation PONs With Different Service Levels

This letter provides a methodology for planning passive optical networks (PONs) using the oversubscription concept and shows its applicability in the dimensioning of 1 Gb/s access to both the basic (i.e., residential) and premium (i.e., business) users with different service level requirements and activity patterns. We show that only next-generation PON networks can reach a large number of users with acceptable service levels.