Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures

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

doi:10.1109/ISQED.2016.7479176

Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

19 Scopus citations

Abstract

Photonic network-on-chip (PNoC) architectures are a potential candidate for communication in future chip multiprocessors as they can attain higher bandwidth with lower power dissipation than electrical NoCs. PNoCs typically employ dense wavelength division multiplexing (DWDM) for high bandwidth transfers. Unfortunately, DWDM increases crosstalk noise and decreases optical signal to noise ratio (SNR) in microring resonators (MRs) threatening the reliability of data communication. Additionally, process variations induce variations in the width and thickness of MRs causing shifts in resonance wavelengths of MRs, which further reduces signal integrity, leading to communication errors and bandwidth loss. In this paper, we propose a novel encoding mechanism that intelligently adapts to on-chip process variations, and improves worst-case SNR by reducing crosstalk noise in MRs used within DWDM-based PNoCs. Experimental results on the Corona PNoC architecture indicate that our approach improves worst-case SNR by up to 44.13%.

Original language	English
Title of host publication	Proceedings of the 17th International Symposium on Quality Electronic Design, ISQED 2016
Pages	57-62
Number of pages	6
ISBN (Electronic)	9781509012138
DOIs	https://doi.org/10.1109/ISQED.2016.7479176
State	Published - May 25 2016
Event	17th International Symposium on Quality Electronic Design, ISQED 2016 - Santa Clara, United States Duration: Mar 15 2016 → Mar 16 2016

Publication series

Name	Proceedings - International Symposium on Quality Electronic Design, ISQED
Volume	2016-May
ISSN (Print)	1948-3287
ISSN (Electronic)	1948-3295

Conference

Conference	17th International Symposium on Quality Electronic Design, ISQED 2016
Country/Territory	United States
City	Santa Clara
Period	3/15/16 → 3/16/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Funding

This research is supported by grants from SRC, NSF (CCF-1252500, CCF-1302693), and AFOSR (FA9550-13-1-0110).

Funders	Funder number
National Science Foundation (NSF)	CCF-1252500, CCF-1302693
Semiconductor Research Corporation
Air Force Office of Scientific Research, United States Air Force	FA9550-13-1-0110

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering
Safety, Risk, Reliability and Quality

Access to Document

10.1109/ISQED.2016.7479176

Cite this

Chittamuru, S. V. R., Thakkar, I. G., & Pasricha, S. (2016). Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures. In Proceedings of the 17th International Symposium on Quality Electronic Design, ISQED 2016 (pp. 57-62). Article 7479176 (Proceedings - International Symposium on Quality Electronic Design, ISQED; Vol. 2016-May). https://doi.org/10.1109/ISQED.2016.7479176

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title = "Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures",

abstract = "Photonic network-on-chip (PNoC) architectures are a potential candidate for communication in future chip multiprocessors as they can attain higher bandwidth with lower power dissipation than electrical NoCs. PNoCs typically employ dense wavelength division multiplexing (DWDM) for high bandwidth transfers. Unfortunately, DWDM increases crosstalk noise and decreases optical signal to noise ratio (SNR) in microring resonators (MRs) threatening the reliability of data communication. Additionally, process variations induce variations in the width and thickness of MRs causing shifts in resonance wavelengths of MRs, which further reduces signal integrity, leading to communication errors and bandwidth loss. In this paper, we propose a novel encoding mechanism that intelligently adapts to on-chip process variations, and improves worst-case SNR by reducing crosstalk noise in MRs used within DWDM-based PNoCs. Experimental results on the Corona PNoC architecture indicate that our approach improves worst-case SNR by up to 44.13\%.",

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

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Chittamuru, SVR, Thakkar, IG & Pasricha, S 2016, Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures. in Proceedings of the 17th International Symposium on Quality Electronic Design, ISQED 2016., 7479176, Proceedings - International Symposium on Quality Electronic Design, ISQED, vol. 2016-May, pp. 57-62, 17th International Symposium on Quality Electronic Design, ISQED 2016, Santa Clara, United States, 3/15/16. https://doi.org/10.1109/ISQED.2016.7479176

Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures. / Chittamuru, Sai Vineel Reddy; Thakkar, Ishan G.; Pasricha, Sudeep.
Proceedings of the 17th International Symposium on Quality Electronic Design, ISQED 2016. 2016. p. 57-62 7479176 (Proceedings - International Symposium on Quality Electronic Design, ISQED; Vol. 2016-May).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Process variation aware crosstalk mitigation for DWDM based photonic NoC architectures

Abstract

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Bibliographical note

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ASJC Scopus subject areas

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