Abstract

Optical network-on-chip (ONoC) is promising to provide higher bandwidth and lower latency, compared with the traditional electrical interconnects at either chip-scale or wafer-scale. There is research on the impact of mapping or wavelength assignment on reliability in ONoC. However, mapping and wavelength assignment have an interactive influence on each other, pushing a necessity of research on the joint method. In addition, there are various ways to realize the joint method, which have an influence on the reliability and thus the power efficiency. In this paper, we propose a neural-network-based iterative joint method of mapping and wavelength assignment. Compared to the methods without considering the interactive influence, the proposed iterative joint method based on the continuous Hopfield neural network provides a worst-case optical signal-to-noise ratio (${{\rm OSNR}_{\rm{WC}}}$) improvement of at least 61% under the considered applications. Compared to the simultaneous joint method and two-step joint method, the proposed iterative joint method obtains an ${{\rm OSNR}_{\rm{WC}}}$ improvement of at least 17.9% and 64.6%, respectively, under the considered applications. Thanks to the improvement of OSNR, the laser power is reduced by 87.9% by using our method of wavelength assignment, compared to the random method of wavelength assignment.

© 2023 Optica Publishing Group

Universal wavelength reuse mechanism for optical networks-on-chip based on a cooperative game

Hongyu Yang, Yiyuan Xie, Tingting Song, Ye Su, Bocheng Liu, Junxiong Chai, Xiao Jiang, Li Dai, and Jing Pang
J. Opt. Commun. Netw. 15(6) 367-380 (2023)

Low Polling Time TDM ONoC With Direction-Based Wavelength Assignment

Bowen Zhang, Huaxi Gu, Kun Wang, Yintang Yang, and Wei Tan
J. Opt. Commun. Netw. 9(6) 479-488 (2017)

Scheduling in Multi-Wavelength Ring-Based Optical Networks-on-Chip

I. Cerutti, M. N. A. Acmad, R. Reyes, P. Castoldi, and N. Andriolli
J. Opt. Commun. Netw. 10(4) 322-331 (2018)

Interpreting multi-objective reinforcement learning for routing and wavelength assignment in optical networks

Sam Nallaperuma, Zelin Gan, Josh Nevin, Mykyta Shevchenko, and Seb J. Savory
J. Opt. Commun. Netw. 15(8) 497-506 (2023)

Impact of the band upgrade sequence on the capacity and capital expenditure of multi-band optical networks

Ningning Guo, Kai Zhang, Yongcheng Li, Ning Deng, Sanjay K. Bose, and Gangxiang Shen
J. Opt. Commun. Netw. 15(10) E1-E17 (2023)