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在面向多播业务的以太无源光网络中引入光网络单元混合休眠模式,提出面向多播业务的节能算法和改进的面向多播业务的节能算法,使光网络单元空闲组件能够得到充分休眠,并通过约束条件降低光网络单元的唤醒次数,从而降低光网络单元能耗.改进的面向多播业务的算法与面向多播业务的算法相比,增加了光网络单元唤醒的约束条件,进一步降低了光网络单元的唤醒次数.仿真结果表明,与现有算法相比,所提算法在保证数据包时延的前提下更加节能.改进的面向多播业务的算法节能效果优于面向多播业务的算法,表明增加的约束条件有助于降低光网络单元的唤醒次数和能耗.
In the passive optical network for multicast service, the hybrid sleep mode of optical network unit is introduced, the energy-saving algorithm for multicast service and the improved energy-saving algorithm for multicast service are proposed, and the idle components of optical network unit can be fully dormant, And reduce the number of wake-up times of optical network units through constraints to reduce energy consumption of optical network units.Compared with multicast-oriented algorithms, the improved multicast service-based algorithm increases the constraint of wakeup of optical network units and further reduces The number of wake-up times of the optical network units is simulated.The simulation results show that compared with the existing algorithms, the proposed algorithm is more energy-efficient under the premise of guaranteeing the data packet delay.The improved multicast service-oriented algorithm is better than the multicast-oriented service Algorithm, indicating that the additional constraints help to reduce the number of optical network unit wake-up and energy consumption.