7-PORTNon-blocking Optical Router Design and Efficient Routing Algorithm in 3D Mesh Optical Network on Chip

Abstract :

In recent years, three-dimensional Networks-on-Chip (3D NoCs) have been recognized as an effective solution to overcome the bandwidth limitations of electrical interconnects in multi-core processors. The adoption of optical communication technologies in these networks has significantly enhanced the performance of multi-core architectures. In 3D Optical NoC structures, 4-port and 5-port routers are typically deployed at the network corners, while 6-port and 7-port routers are employed for data transmission across the network.

In this paper, we propose a non-blocking 7-port optical router based on microring resonators. The proposed router achieves substantial reductions in power consumption and energy loss by minimizing the number of optical switching elements. Furthermore, a novel routing algorithm is introduced, aiming to determine the optimal data path while reducing energy dissipation and power consumption for 3D Optical NoCs. This algorithm is implemented on the proposed router and dynamically selects the most efficient path between the source and destination processing cores by leveraging the router’s architecture and rotational models, ensuring minimal energy and power usage compared to other available paths.

The evaluation of energy loss and power consumption parameters has been conducted through simulations on the Omnet++ platform. The obtained results demonstrate that the proposed design significantly improves the performance of 3D Optical NoCs compared to existing architectures.

References:

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