A Dynamic Bandwidth Allocation Scheme for GPON Based on Traffic Prediction

In order to improve the performance of Gigabit Passive Optical Network(GPON) systems, a novel dynamic bandwidth allocation(DBA) scheme called P-DBA based on traffic prediction for GPON is proposed, which can better meet the optical network´s technical requirements of high bandwidth, low delay and low packet loss rate. Using the high-order moving average model, P-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 P-DBA scheme proposed in this paper has good performances on latency and packet loss rate.