The Journal of China Universities of Posts and Telecommunications ›› 2021, Vol. 28 ›› Issue (1): 94-106.doi: 10.19682/j.cnki.1005-8885.2021.0012

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LOOKNoC: a low-loss, non-blocking, scalable passive optical interconnect network-on-chip architecture

  

  1. School of Electronic and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710121, China
  • Received:2020-07-01 Revised:2020-11-24 Online:2021-02-28 Published:2021-03-28
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (61834005, 61772417, 61874087), the Shaanxi International Science and Technology Cooperation Program (2018KW-006).

Abstract:

Low-loss, non-blocking, scalable passive optical interconnect network on-lhip ( LOOKNoC) structure was proposed based on 2 *2 optical exchange switches, using wavelength division multiplexing (WDM) technology to expand to 8 *8, 16 *16, 32 *32, 64 *64 passive optical interconnection networks, which can achieve non-blocking communication. The experimental results show that based on the 16 *16 optical interconnection network structure, the number of microring resonators (MRs) in LOOKNoC was reduced by 90.9%, 90.9%, 20.0% and 75.0% compared with the generic wavelength-routed optical router (GWOR), λ-router topology and CrossBar structure. By testing the performance parameters based on the structure of 16 *16 by the OMNET + + platform, as the result shows, the average insertion loss of LOOKNoC is 3.0%, 11.6%, 4.8% and 16.7% less than that of GWOR, λ-router, Mesh, and CrossBar structures.

Key words:

network-on-chip, passive optical interconnect, wavelength division multiplexing, low-loss, non-blocking, scalable