Performance Analysis of Dynamic Bandwidth Allocation Algorithms in GPON

Downstream data transmission in an optical network is performed by broadcast transmission, whereas upstream transmission must use bandwidth allocation algorithms to prevent data packets from colliding. Such scheduling algorithms must comply with the multipoint management Protocol defined in the IEEE 802 standard. A number of bandwidth allocation algorithms are known for optical networks. The purpose of this work is to compare several existing algorithms, such as UPCF, Min, and RDM (Russian Doll Model). The algorithms are modeled using a discrete event simulator implemented using the C language and developed specifically for the study of GPON networks that provide different classes of service in each optical network block. Based on the analysis of the simulation results, proposals are formulated for using each of the algorithms for the required combinations of service classes.