H-DBA for Gigabit Passive Optical Network with Performance Analysis

Performance improvement is very much important for PON system especially in Gigabit Passive Optical Network (GPON). Real time traffic prediction can improve the performance of GPON system. H-DBA, a real time Dynamic Bandwidth Allocation is proposed for performance improvement for GPON System. Proposed H-DBA meets technical requirements of optical network for high bandwidth, low delay and low packet loss with respect to real time traffic prediction. Using high order moving traffic prediction model, H-DBA scheme predicts the amount of high priority traffic arriving during the waiting period, as a basis for bandwidth allocation, so as to ensure the performance of high priority services. Simulation results show that the H-DBA scheme proposed in this paper has good performances on ad-hoc based traffic prediction.