The characteristics of long reach and wide coverage in time and wavelength division multiplexed passive optical network(TWDM-PON) increase the round trip time
resulting in the severe deterioration of the delay performance of high priority traffic.This paper proposes a hybrid resource scheduling algorithm with traffic differentiation to solve this issue.Firstly
the wavelengths of ONU(Optical Network Unit) groups are realtimely adjusted to achieve resource sharing in accordance with the network load
and traffic sub-cycles are dynamically divided for the purpose of differentiated traffic.Furthermore
we respectively exploit the online and offline scheduling to fill the wavelength voids and ensure the efficiency of resources scheduling.Finally
the simulation results show that the proposed algorithm can satisfy the delay requirements of different priority traffic
guarantee the quality of service and improve the channel utilization ratio.