Crosstalk Noise in WDM-Based Optical Networks-on-Chip: A Formal Study and Comparison

Nikdast, Mahdi; Xu, Jiang; Duong, Luan H. K.; Wu, Xiaowen; Wang, Xuan; Wang, ‪Zhehui; Yang, Peng; Ye, Yaoyao; Hao, Qinfen

doi:10.1109/tvlsi.2014.2370892

Cited by 75 publications

(60 citation statements)

References 20 publications

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“…Xu et al [12] proposed a series of solutions to the wavelength drifting problem of microrings and bandwidth loss problem of the optical network, due to PV. Some other researchers [13][14][15] focused on the SNR of the optical network; they analyzed and computed the worstcase SNR of many network architectures such as Corona and Intra/Inter networks.…”

Section: Related Workmentioning

confidence: 99%

Optimize the Power Consumption and SNR of the 3D Photonic High-Radix Switch Architecture Based on Extra Channels and Redundant Rings

Jian

Lai

Xiao

2018

Journal of Computer Networks and Communications

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e demand from exascale computing has made the design of high-radix switch chips an attractive and challenging research field in EHPC (exascale high-performance computing). e static power, due to the thermal sensitivity and process variation of the microresonator rings, and the cross talk noise of the optical network become the main bottlenecks of the network's scalability. is paper proposes the analyze model of the trimming power, process variation power, and signal-to-noise ratio (SNR) for the Graphein-based high-radix optical switch networks and uses the extra channels and the redundant rings to decrease the trimming power and the process variation power. e paper also explores the SNR under different configurations. e simulation result shows that when using 8 extra channels in the 64 × 64 crossbar optical network, the trimming power reduces almost 80% and the process variation power decreases 65% by adding 16 redundant rings in the 64 × 64 crossbar optical network. All of these schemes have little influence on the SNR. Meanwhile, the greater channel spacing has great advantages to decrease the static power and increase the SNR of the optical network.

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Section: Related Workmentioning

confidence: 99%

Optimize the Power Consumption and SNR of the 3D Photonic High-Radix Switch Architecture Based on Extra Channels and Redundant Rings

Jian

Lai

Xiao

2018

Journal of Computer Networks and Communications

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“…Nikdast et al developed models at the device level for the worst-case and average crosstalk noise in different ONoCs [10]. However, reducing the worst-case crosstalk noise is not sufficient if targeting a performance/energy trade-off for a specific application.…”

Section: Related Workmentioning

confidence: 99%

Performance and energy aware wavelength allocation on ring-based WDM 3D optical NoC

Luo¹,

El-Antably²,

Pham³

et al. 2017

Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE), 2017

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Abstract-Optical Network-on-Chip (ONoC) is a promising communication medium for large-scale Multiprocessor System on Chip (MPSoC). ONoC outperforms classical electrical NoC in terms of throughput and latency. The medium can support multiple transactions at the same time on different wavelengths by using Wavelength Division Multiplexing (WDM). Moreover multiple wavelengths can be used as high-bandwidth channel to reduce transmission time. However, multiple signals sharing simultaneously a waveguide can lead to inter-channel crosstalk noise. This problem impacts the Signal to Noise Ratio (SNR) of the optical signal, which leads to an increase in the Bit Error Rate (BER) at the receiver side. In this paper we first formulate the crosstalk noise and execution time models and then propose a Wavelength Allocation (WA) method in a ring-based WDM ONoC allowing to search for performance and energy trade-offs, based on the application constraints. As result, most promising WA solutions are highlighted for a defined application mapping onto 16-core WDM ONoC.

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“…The crosstalk noise in WDMbased ONoC can be classified into intrachannel or interchannel crosstalk noise by its wavelength [1]. The intrachannel crosstalk noise will be generated when the wavelength of interference signal is the same as that of the desired signal.…”

Section: Crosstalk Modelmentioning

confidence: 99%

“…The analytical models of worst case crosstalk noise and SNR for three different WDM-based ONoC architectures are presented at device, router and network levels [1]. Since multiple wavelengths are utilized in CWA method, we employ the abovementioned analytical models and make the models slightly modified to evaluate the performance improvement in CWA-based ONoC.…”

Section: Crosstalk Modelmentioning

confidence: 99%

“…However, the crosstalk noise in WDMbased ONoC, which derives from different optical devices as well as different wavelengths, accumulates on optical signal during transmission. The accumulated crosstalk noise deteriorates the SNR performance at receiving end considerably, causing severe issues on signal reliability and network scalability [1]. Therefore, crosstalk noise is a key consideration in the design of ONoC architectures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A crosstalk-aware wavelength assignment method for optical network-on-chip

Cao

Wang

et al. 2016

IEICE Electron. Express

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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 characteristics. However, the crosstalk problem is an obstacle to the realization of ONoC. In large scale ONoC, the crosstalk noise considerably reduces data transmission reliability via the signal-to-noise ratio (SNR), and limits the scalability of ONoC. In this letter, we propose a crosstalk-aware wavelength assignment (CWA) method to mitigate the crosstalk problem. Analyses results indicate that our CWA method significantly improves the worst-case SNR and allows a higher network scalability.

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Crosstalk Noise in WDM-Based Optical Networks-on-Chip: A Formal Study and Comparison

Cited by 75 publications

References 20 publications

Optimize the Power Consumption and SNR of the 3D Photonic High-Radix Switch Architecture Based on Extra Channels and Redundant Rings

Optimize the Power Consumption and SNR of the 3D Photonic High-Radix Switch Architecture Based on Extra Channels and Redundant Rings

Performance and energy aware wavelength allocation on ring-based WDM 3D optical NoC

A crosstalk-aware wavelength assignment method for optical network-on-chip

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