Review on dynamic bandwidth allocation of GPON and EPON

The passive optical network (PON) technology has been drastically improved in recent years. In spite of
using the optical technology, the utilization of the entire bandwidth is a very challenging task. The
main categories of PON are the Ethernet passive optical network (EPON) and gigabit passive opticalnetwork (GPON). These two networks use the dynamic bandwidth allocation (DBA) algorithm to attainthe maximum usage of bandwidth, which is provided in the network dynamically according to theneed of the customers with the support of the service level agreement (SLA). This paper will provide aclear review about the DBA algorithm of both technologies as well as the comparison.