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Performance Optimization and Evaluation for Torus-Based Optical Networks-on-Chip

机译：基于环面的片上光网络的性能优化和评估

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As a new trend, torus-based optical networks-on-chip (ONoCs), which can be considered as an extension of a 2-D network topology based on a mesh topology, can overcome the bandwidth limitation of a conventional electrical networks-on-chip. Although ONoCs have many advantages, crosstalk and insertion loss are the two main causes of the performance degradation and network scalability constraints. When traditional crossing and optical routers are used in the original torus structure, a bit error rate of 10 is needed for reliable transmission for a network scale of no more than 5 × 5. To improve the performance of torus-based ONoCs and expand network scalability, an optimum crossing of 60° or 120° is applied in an optical router and network for the first time, instead of the conventional crossing fixed at 90°. Furthermore, a mathematical noise analysis model is presented, and then, used in designing an optical communication systems based on a torus-based optical interconnection network. According to the simulation results, optimized torus-based ONoCs have a better signal-to-noise ratio (SNR) for the path-setup link at a certain network scale compared to a traditional network with fixed crossing angle. For example, when the network scale of a torus-based ONoC is 6 × 6 and the input power is 0 dBm, the SNR of a torus-based ONoC using the optimized structure can reach 23.87 dB, which is 2.21 and 9.27 dB higher than those using crux and optimized crossbar routers, respectively.
机译：作为一种新趋势，基于环面的片上光网络（ONoC）可被视为基于网状拓扑的二维网络拓扑的扩展，它可以克服传统的基于电的网络的带宽限制。 -芯片。尽管ONoC具有许多优点，但是串扰和插入损耗是导致性能下降和网络可伸缩性限制的两个主要原因。当在原始环形结构中使用传统的交叉和光路由器时，对于不超过5×5的网络规模，可靠传输需要10位的误码率。要提高基于环形的ONoC的性能并扩展网络可扩展性，首次将60°或120°的最佳交叉应用于光学路由器和网络，而不是固定在90°的传统交叉。此外，提出了一种数学噪声分析模型，然后将其用于设计基于基于环的光互连网络的光通信系统。根据仿真结果，与具有固定交叉角的传统网络相比，优化的基于环的ONoC在特定网络规模下具有更好的信噪比（SNR）。例如，当基于环面的ONoC的网络规模为6×6且输入功率为0 dBm时，使用优化结构的基于环面的ONoC的SNR可以达到23.87 dB，比分别高出2.21和9.27 dB分别使用关键和优化纵横制路由器的公司。

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