Scaling star-coupler-based optical networks for avionics applications
Scaling star-coupler-based optical networks for avionics applications
复制标题
扩展用于航空电子应用的基于星形耦合器的光网络
DOI：
10.1364/jocn.5.000945
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
R. Dutt
中科院分区：
文献类型：
--
作者：
Qi Li;S. Rumley;M. Glick;J. Chan;Howard Wang;K. Bergman;R. Dutt
在这项工作中，探索了针对航空电子应用的基于无源星形耦合器的光学广播和选择网络的扩展。网络中的每个客户端都配备有发射器单元和多通道接收器，能够接收来自连接到星形耦合器的所有其他客户端的信号。我们提出了一个连接节点概念来扩展架构支持的客户端数量。这些连接节点充当星形耦合器之间的桥梁，从而能够将多个星形耦合器组织成具有附加客户端的拓扑。该设计在 PhoenixSim 仿真环境中建模，并报告系统级仿真结果。然后，我们提出环形拓扑和 N 维拓扑来互连和扩展星形耦合器。最后，我们比较了环形拓扑和 N 维拓扑在不同交叉流量负载下的可扩展性限制，揭示了延迟、系统复杂性和可扩展性之间的权衡。我们的研究表明，可以使用现成的和近期的商业技术来构建一个包含多达数百个客户端的强大、低延迟网络，足以满足当前和下一代航空电子应用的需求。
In this work scaling of an optical broadcast-and-select network based on a passive star coupler is explored for avionics applications. Each client in the network is equipped with a transmitter unit and a multichannel receiver capable of receiving signals from all other clients connected to the star coupler. We propose a connecting node concept to scale the number of clients supported by the architecture. These connecting nodes act as bridges between star couplers, enabling the organization of several star couplers into a topology with additional clients. This design is modeled in the PhoenixSim simulation environment, and system-level simulation results are reported. We then propose the ring topology and dimension-N topology to interconnect and scale star couplers. Finally we compare the ring and dimension-N topologies in terms of scalability limit at different crossing traffic loads, revealing the trade-offs between latency, system complexity, and scalability. Our study shows that a robust, low-latency network of up to hundreds of clients, sufficient for current and next-generation avionics applications, can be built using off-the-shelf and near-term commercial technology.