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引用次数: 0
摘要
近年来，以太网无源光网络(EPON)被认为是一种很有前途的移动前传网络，因为它可以为带宽紧张的增强型移动宽带(eMBB)业务提供高容量。但是，由于uRLLC (ultra-reliable and low latency communication)是一种零星的、高度不可预测的、对延迟敏感的业务，所以EPON不支持uRLLC (ultra-reliable and low latency communication)业务。为了解决这一问题，本文设计了一种混合动态带宽分配(DBA)算法，该算法将uRLLC流量视为高优先级流量。特别是，混合DBA算法每隔一个固定的时间间隔以竞争的方式调度uRLLC流量，并以轮询的方式轮询eMBB流量。仿真结果表明，混合DBA算法在有16个onu的网络中可以很好地工作。
A Hybrid DBA Algorithm for EPON-based Mobile Front-haul Networks
In recent years, Ethernet passive optical network (EPON) has been considered as a promising candidate of mobile front-haul networks, since it can provide high capacity for bandwidth-hungry enhanced mobile broadband (eMBB) traffic. However, the EPON cannot support ultra-reliable and low latency communication (uRLLC) traffic, which is sporadic, highly unpredictable, and delay-sensitive. To address this problem, this paper devises a hybrid dynamic bandwidth allocation (DBA) algorithm, which treats the uRLLC traffic as high-priority traffic. In particular, the hybrid DBA algorithm schedules the uRLLC traffic in a competitive manner every other fixed time interval and polls the eMBB traffic in a round-robin manner. Our simulation results show that the hybrid DBA algorithm can work very well in the network with 16 ONUs.
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