This paper proposes an improved scheduling algorithm that optimizes the allocation of the real-time services and elastic flows in EPON by spreading the real-time service periods lowering the delay and thus fulfilling the QoS requirements.
Garfias, P. [et al.]. Real-time services in EPON. A: Optical Fiber Communication Conference and Exposition/National Fiber Optic Engineers Conference. "Proceedings of the OFCNFOEC 2012". Los Angeles: 2012, p. 135.