Research and Simulation Analysis of Improved Dual-clocking Algorithm in EPON

Ethernet passive optical network (EPON) is thought of as the best candidate for the next-generation access network, much attention has being put on assessing and bringing up better bandwidth allocation algorithm. This paper analyses the performance of the existing algorithms and brings forward an improved algorithm basing on the basis of the existing algorithm, which has made the improvement to the existing dual-clocking algorithm´s A-clocking. The improved algorithm enables A-clocking to act according to the actual situation. At the same time, the paper has carried on the simulation contrast to the improvement algorithm and the existing algorithm and has made the summary analysis to the result.