HYDRA: Heterodyne crosstalk mitigation with double microring resonators and data encoding for photonic NoCs

Sai Vineel Reddy Chittamuru; Ishan G. Thakkar; Sudeep Pasricha

doi:10.1109/TVLSI.2017.2749967

HYDRA: Heterodyne crosstalk mitigation with double microring resonators and data encoding for photonic NoCs

Sai Vineel Reddy Chittamuru, Ishan G. Thakkar, Sudeep Pasricha

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Silicon-photonic networks on chip (PNoCs) provide high bandwidth with lower data-dependent power dissipation than does the traditional electrical NoCs (ENoCs); therefore, they are promising candidates to replace ENoCs in future manycore chips. PNoCs typically employ photonic waveguides with dense wavelength division multiplexing (DWDM) for signal traversal and microring resonators (MRs) for signal modulation. Unfortunately, DWDM increases susceptibility to intermodulation (IM) and off-resonance filtering effects, which reduce optical signalto- noise ratio (OSNR) for photonic data transfers. Additionally, process variations (PVs) induce variations in the width and thickness of MRs causing resonance wavelength shifts, which further reduce OSNR, and create communication errors. This paper proposes a novel cross-layer framework called HYDRA to mitigate heterodyne crosstalk due to PVs, off-resonance filtering, and IM effects in PNoCs. The framework consists of two devicelevel mechanisms and a circuit-level mechanism to improve heterodyne crosstalk resilience in PNoCs. Simulation results on three PNoC architectures indicate that HYDRA can improve the worst case OSNR by up to 5.3× and significantly enhance the reliability of DWDM-based PNoC architectures.

Original language	English
Pages (from-to)	168-181
Number of pages	14
Journal	IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Volume	26
Issue number	1
DOIs	https://doi.org/10.1109/TVLSI.2017.2749967
State	Published - Jan 2018

Bibliographical note

Funding Information:
This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110.

Funding Information:
Manuscript received January 25, 2017; revised May 7, 2017 and July 18, 2017; accepted August 21, 2017. Date of publication September 18, 2017; date of current version December 27, 2017. This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110. (Sai Vineel Reddy Chittamuru and Ishan G. Thakkar contributed equally to this work.) (Corresponding author: Sai Vineel Reddy Chittamuru.) The authors are with the Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523 USA (e-mail: sai.chittamuru@colostate.edu; ishan.thakkar@colostate.edu; sudeep@colostate.edu).

Publisher Copyright:
© 2017 IEEE.

Keywords

Crosstalk noise
Photonic NoCs (PNoCs)
Process variations (PVs)

ASJC Scopus subject areas

Software
Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/TVLSI.2017.2749967

Cite this

@article{9f2aaa70d51e4288ac120c75a71381be,

title = "HYDRA: Heterodyne crosstalk mitigation with double microring resonators and data encoding for photonic NoCs",

abstract = "Silicon-photonic networks on chip (PNoCs) provide high bandwidth with lower data-dependent power dissipation than does the traditional electrical NoCs (ENoCs); therefore, they are promising candidates to replace ENoCs in future manycore chips. PNoCs typically employ photonic waveguides with dense wavelength division multiplexing (DWDM) for signal traversal and microring resonators (MRs) for signal modulation. Unfortunately, DWDM increases susceptibility to intermodulation (IM) and off-resonance filtering effects, which reduce optical signalto- noise ratio (OSNR) for photonic data transfers. Additionally, process variations (PVs) induce variations in the width and thickness of MRs causing resonance wavelength shifts, which further reduce OSNR, and create communication errors. This paper proposes a novel cross-layer framework called HYDRA to mitigate heterodyne crosstalk due to PVs, off-resonance filtering, and IM effects in PNoCs. The framework consists of two devicelevel mechanisms and a circuit-level mechanism to improve heterodyne crosstalk resilience in PNoCs. Simulation results on three PNoC architectures indicate that HYDRA can improve the worst case OSNR by up to 5.3× and significantly enhance the reliability of DWDM-based PNoC architectures.",

keywords = "Crosstalk noise, Photonic NoCs (PNoCs), Process variations (PVs)",

author = "Chittamuru, {Sai Vineel Reddy} and Thakkar, {Ishan G.} and Sudeep Pasricha",

note = "Funding Information: This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110. Funding Information: Manuscript received January 25, 2017; revised May 7, 2017 and July 18, 2017; accepted August 21, 2017. Date of publication September 18, 2017; date of current version December 27, 2017. This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110. (Sai Vineel Reddy Chittamuru and Ishan G. Thakkar contributed equally to this work.) (Corresponding author: Sai Vineel Reddy Chittamuru.) The authors are with the Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523 USA (e-mail: sai.chittamuru@colostate.edu; ishan.thakkar@colostate.edu; sudeep@colostate.edu). Publisher Copyright: {\textcopyright} 2017 IEEE.",

year = "2018",

month = jan,

doi = "10.1109/TVLSI.2017.2749967",

language = "English",

volume = "26",

pages = "168--181",

number = "1",

}

TY - JOUR

T1 - HYDRA

T2 - Heterodyne crosstalk mitigation with double microring resonators and data encoding for photonic NoCs

AU - Chittamuru, Sai Vineel Reddy

AU - Thakkar, Ishan G.

AU - Pasricha, Sudeep

N1 - Funding Information: This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110. Funding Information: Manuscript received January 25, 2017; revised May 7, 2017 and July 18, 2017; accepted August 21, 2017. Date of publication September 18, 2017; date of current version December 27, 2017. This work was supported in part by SRC, in part by the U.S. National Science Foundation under Grant CCF-1252500 and Grant CCF-1302693, and in part by AFOSR under Grant FA9550-13-1-0110. (Sai Vineel Reddy Chittamuru and Ishan G. Thakkar contributed equally to this work.) (Corresponding author: Sai Vineel Reddy Chittamuru.) The authors are with the Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO 80523 USA (e-mail: sai.chittamuru@colostate.edu; ishan.thakkar@colostate.edu; sudeep@colostate.edu). Publisher Copyright: © 2017 IEEE.

PY - 2018/1

Y1 - 2018/1

N2 - Silicon-photonic networks on chip (PNoCs) provide high bandwidth with lower data-dependent power dissipation than does the traditional electrical NoCs (ENoCs); therefore, they are promising candidates to replace ENoCs in future manycore chips. PNoCs typically employ photonic waveguides with dense wavelength division multiplexing (DWDM) for signal traversal and microring resonators (MRs) for signal modulation. Unfortunately, DWDM increases susceptibility to intermodulation (IM) and off-resonance filtering effects, which reduce optical signalto- noise ratio (OSNR) for photonic data transfers. Additionally, process variations (PVs) induce variations in the width and thickness of MRs causing resonance wavelength shifts, which further reduce OSNR, and create communication errors. This paper proposes a novel cross-layer framework called HYDRA to mitigate heterodyne crosstalk due to PVs, off-resonance filtering, and IM effects in PNoCs. The framework consists of two devicelevel mechanisms and a circuit-level mechanism to improve heterodyne crosstalk resilience in PNoCs. Simulation results on three PNoC architectures indicate that HYDRA can improve the worst case OSNR by up to 5.3× and significantly enhance the reliability of DWDM-based PNoC architectures.

AB - Silicon-photonic networks on chip (PNoCs) provide high bandwidth with lower data-dependent power dissipation than does the traditional electrical NoCs (ENoCs); therefore, they are promising candidates to replace ENoCs in future manycore chips. PNoCs typically employ photonic waveguides with dense wavelength division multiplexing (DWDM) for signal traversal and microring resonators (MRs) for signal modulation. Unfortunately, DWDM increases susceptibility to intermodulation (IM) and off-resonance filtering effects, which reduce optical signalto- noise ratio (OSNR) for photonic data transfers. Additionally, process variations (PVs) induce variations in the width and thickness of MRs causing resonance wavelength shifts, which further reduce OSNR, and create communication errors. This paper proposes a novel cross-layer framework called HYDRA to mitigate heterodyne crosstalk due to PVs, off-resonance filtering, and IM effects in PNoCs. The framework consists of two devicelevel mechanisms and a circuit-level mechanism to improve heterodyne crosstalk resilience in PNoCs. Simulation results on three PNoC architectures indicate that HYDRA can improve the worst case OSNR by up to 5.3× and significantly enhance the reliability of DWDM-based PNoC architectures.

KW - Crosstalk noise

KW - Photonic NoCs (PNoCs)

KW - Process variations (PVs)

UR - http://www.scopus.com/inward/record.url?scp=85030630391&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85030630391&partnerID=8YFLogxK

U2 - 10.1109/TVLSI.2017.2749967

DO - 10.1109/TVLSI.2017.2749967

M3 - Article

AN - SCOPUS:85030630391

SN - 1063-8210

VL - 26

SP - 168

EP - 181

JO - IEEE Transactions on Very Large Scale Integration (VLSI) Systems

JF - IEEE Transactions on Very Large Scale Integration (VLSI) Systems

IS - 1

ER -

HYDRA: Heterodyne crosstalk mitigation with double microring resonators and data encoding for photonic NoCs

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this