Improving the reliability and energy-efficiency of high-bandwidth photonic NoC architectures with multilevel signaling

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Scopus citations

Abstract

Photonic network-on-chip (PNoC) architectures employ photonic waveguides with dense-wavelength-division-multiplexing (DWDM) for signal traversal and microring resonators (MRs) for on-off-keying (OOK) based signal modulation, to enable high bandwidth on-chip transfers. Unfortunately, the use of larger number of DWDM wavelengths to achieve higher bandwidth requires sophisticated and costly laser sources along with extra photonic hardware, which adds extra noise and increases the power and area consumption of PNoCs. This paper presents a novel method (called 4-PAM-P) of generating four-amplitude-level optical signals in PNoCs, which doubles the aggregate bandwidth without increasing utilized wavelengths, photonic hardware, and incurred noise, thereby reducing the bit-error-rate (BER), area, and energy consumption of PNoCs. Our experimental analysis shows that our 4-PAM-P signaling method achieves equal bandwidth with 4.2× better BER, 19.5% lower power, 16.3% lower energy-per-bit, and 5.6% less photonic area compared to the best known 4- amplitude-level optical signaling method from prior work.

Original languageEnglish
Title of host publication2017 11th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2017
ISBN (Electronic)9781450349840
DOIs
StatePublished - Oct 19 2017
Event11th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2017 - Seoul, Korea, Republic of
Duration: Oct 19 2017Oct 20 2017

Publication series

Name2017 11th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2017

Conference

Conference11th IEEE/ACM International Symposium on Networks-on-Chip, NOCS 2017
Country/TerritoryKorea, Republic of
CitySeoul
Period10/19/1710/20/17

Bibliographical note

Publisher Copyright:
© 2017 Association for Computing Machinery.

Keywords

  • Energy efficiency
  • Multilevel optical signaling
  • Optimization
  • Photonic network on chip
  • Reliability

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Improving the reliability and energy-efficiency of high-bandwidth photonic NoC architectures with multilevel signaling'. Together they form a unique fingerprint.

Cite this