Abstract
Insertion loss and crosstalk noise will influence network performance severely, especially in optical networks-on-chip (ONoCs) when wavelength division multiplexing (WDM) technology is employed. In this paper, an insertion loss and crosstalk analysis model for WDM-based torus ONoCs is proposed to evaluate the network performance. To demonstrate the feasibility of the proposed methods, numerical simulations of the WDM-based torus ONoCs with optimized crossbar and crux optical routers are presented, and the worst-case link and network scalability are also revealed. The numerical simulation results demonstrate that the scale of the WDM-based torus ONoCs with the crux optical router can reach 6 × 5 or 5 × 6 before the noise power exceeds the signal power, and the network scale is 5 × 4 in the worst case when the optimized crossbar router is employed. Additionally, the simulated results of OptiSystem reveal that WDM-based torus ONoCs have better signal transmission quality when using the crux optical router, which is consistent with previous numerical simulations. Furthermore, compared with the single-wavelength network, WDM-based ONoCs have a great performance improvement in end-to-end (ETE) delay and throughput according to the simulated results of OPNET. The proposed network analysis method provides a reliable theoretical basis and technical support for the design and performance optimization of ONoCs.
Highlights
With the rapid development of manufacturing processes, on-chip devices have been manufactured in nano-layers
Our previous research demonstrated that the noise produced by the nonlinear four-wave mixing (FWM) effect is a non-negligible issue for the performance evaluation of wavelength division multiplexing (WDM)-based ONoCs, but the analytical model presented in that research is based on mesh network topology [16]
CoBnacsleudsioonntshe torus topology, this paper proposes an insertion loss and crosstalk noise analysis model for WBDaMsed-baosnedthteortoursuOs NtoopCoslofgroym, ththise pbaoptteormprtopuopspeesralnayiners.eTrthioengelonsesralncdrocsrsotsasltkanlkoinsoeiasendanpaolwyseisr lmososdmelofdoerlWarDe Mhi-ebrarscehdictaolrluyspOroNpoCsesdfraotmBOthSeEsboatntdomthteooupptipcearl rlaoyueterr
Summary
With the rapid development of manufacturing processes, on-chip devices have been manufactured in nano-layers. Our previous research demonstrated that the noise produced by the nonlinear FWM effect is a non-negligible issue for the performance evaluation of WDM-based ONoCs, but the analytical model presented in that research is based on mesh network topology [16]. Considering the advantages of torus topology and its commercial application [31,32], a performance analysis model of the insertion loss and crosstalk calculation method for torus-based ONoCs with WDM is proposed and analyzed systematically in this paper. Simulation results show that crosstalk noise degenerates the OSNR performance of WDM-based ONoCs severely, results in optical signal distortion, and eventually limits network scalability. K is the crosstalk coefficient, which is generated by the optical signals through the different MRs in the OFF or ON state
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
