A Thermal-Aware Power Allocation Method for Optical Network-on-Chip

Optical network on chip (ONoC) is a promising on-chip communication architecture for future many-core systems due to its high performance and energy efficient. ONoC is mostly constructed with microring resonators. However, thermo-optic effect will lead to the drift of the operation point and ultimat...

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Main Authors: Rong Cao, Yintang Yang, Huaxi Gu, Lei Huang
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8489856/
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author Rong Cao
Yintang Yang
Huaxi Gu
Lei Huang
author_facet Rong Cao
Yintang Yang
Huaxi Gu
Lei Huang
author_sort Rong Cao
collection DOAJ
description Optical network on chip (ONoC) is a promising on-chip communication architecture for future many-core systems due to its high performance and energy efficient. ONoC is mostly constructed with microring resonators. However, thermo-optic effect will lead to the drift of the operation point and ultimately have a serious impact on the signal-to-noise rate (SNR). In order to solve this problem, a thermal-aware power allocation method is proposed in this paper. Every communication request should be provided with enough power to satisfy the minimum SNR requirement. Time division multiplexing technology is adopted to solve the power allocation conflicts and communication path conflicts in the network. In order to minimize the number of slots satisfying the rated power supply, an optimization model is established and solved. The simulation results indicate that our proposed method can increase the success rate of communication requests from an average of 43% to 100% in four different on-chip thermal distribution scenarios when compared with four communication scenarios without optimization. It also saves 66.7% of the laser power in average compared with the traditional power allocation method.
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spelling doaj.art-fb8cd934819e4eb287f1c012d3167b732022-12-21T22:23:14ZengIEEEIEEE Access2169-35362018-01-016611766118310.1109/ACCESS.2018.28754048489856A Thermal-Aware Power Allocation Method for Optical Network-on-ChipRong Cao0Yintang Yang1Huaxi Gu2https://orcid.org/0000-0002-6409-2229Lei Huang3State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaInstitute of Microelectronics, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaState Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, ChinaOptical network on chip (ONoC) is a promising on-chip communication architecture for future many-core systems due to its high performance and energy efficient. ONoC is mostly constructed with microring resonators. However, thermo-optic effect will lead to the drift of the operation point and ultimately have a serious impact on the signal-to-noise rate (SNR). In order to solve this problem, a thermal-aware power allocation method is proposed in this paper. Every communication request should be provided with enough power to satisfy the minimum SNR requirement. Time division multiplexing technology is adopted to solve the power allocation conflicts and communication path conflicts in the network. In order to minimize the number of slots satisfying the rated power supply, an optimization model is established and solved. The simulation results indicate that our proposed method can increase the success rate of communication requests from an average of 43% to 100% in four different on-chip thermal distribution scenarios when compared with four communication scenarios without optimization. It also saves 66.7% of the laser power in average compared with the traditional power allocation method.https://ieeexplore.ieee.org/document/8489856/Optical interconnectnetwork-on-chipthermal-aware power allocationtime division multiplexing
spellingShingle Rong Cao
Yintang Yang
Huaxi Gu
Lei Huang
A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
IEEE Access
Optical interconnect
network-on-chip
thermal-aware power allocation
time division multiplexing
title A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
title_full A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
title_fullStr A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
title_full_unstemmed A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
title_short A Thermal-Aware Power Allocation Method for Optical Network-on-Chip
title_sort thermal aware power allocation method for optical network on chip
topic Optical interconnect
network-on-chip
thermal-aware power allocation
time division multiplexing
url https://ieeexplore.ieee.org/document/8489856/
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AT rongcao thermalawarepowerallocationmethodforopticalnetworkonchip
AT yintangyang thermalawarepowerallocationmethodforopticalnetworkonchip
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