Application for GPON Frame Analysis

Holík, Martin; Horváth, Tomáš; Oujezský, Václav

doi:10.3390/electronics8060700

Cited by 6 publications

(4 citation statements)

References 13 publications

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“…The results of this work are based on previous experiments with the MS SQL database, described in the publications [38][39][40]. The main requirement for future work was to optimize the writing speed as much as possible and also to enable easy data acquisition, which may not comply with G.984 recommendations.…”

Section: Discussionmentioning

confidence: 99%

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MongoDB Database as Storage for GPON Frames

Holík

Horváth

Oujezský

et al. 2020

Sensors

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This work is focused on creating an open-source software-based solution for monitoring traffic transmitted through gigabit passive optical network. In this case, the data are captured by the field-programmable gate array (FPGA) card and reassembled using parsing software from a passive optical network built on the International Telecommunication Unit telecommunication section (ITU-T) G.984 gigabit-capable passive optical network GPON recommendation. Then, the captured frames are converted by suitable software into GPON frames, which will be further processed for analysis. Due to the high transfer rate of GPON recommendations, the work describes the issue of writing to the Mongo database system. In order to achieve the best possible results and minimal loss of transmitted frames, a series of tests were performed. The proposed test scenarios are based on different database writing approaches and are implemented in the Python and C# programming languages. Based on our results, it has been shown that the high processing speed is too high for Python processing. Critical operations must be implemented in the C# programming language. Due to rapid application development, Python can only be used for noncritical time-consuming data processing operations.

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Section: Discussionmentioning

confidence: 99%

“…The first data storage tests were performed using Microsoft structured query language (MS SQL). MS SQL is a database system designed for a large volume of data, and a suitable design can divide the data into tables to avoid duplicate records [38][39][40]. Better results were obtained using the MongoDB document database system.…”

Section: Testing Scenariosmentioning

confidence: 99%

MongoDB Database as Storage for GPON Frames

Holík

Horváth

Oujezský

et al. 2020

Sensors

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“…The demand for services in current communications networks has experienced a heavy growth in recent years, and it is predictable that this trend will continue in the future, or even rise, because consumers demand access to an increasing amount of information using more and more different devices [1]. From the standpoint of service providers, this poses a severe challenge in terms of research and innovation in the design and implementation of communications systems.…”

Section: Introductionmentioning

confidence: 99%

“…Besides this, networks based on optical fiber also introduce lower attenuation, which allows covering larger distances between provider and clients; they permit the implementation of point-to-multipoint (P2MP) tree structures; and, consisting of passive elements, they are very cost-efficient and easy to maintain. For this reason, networks based on passive optical fiber with gigabit capabilities (GPON) are the preferred choice to implement FTTH for triple-play solutions [1].…”

Section: Introductionmentioning

confidence: 99%

A Reconfigurable Radio-Frequency Converter IC in 0.18 µm CMOS

Sánchez-Azqueta¹,

Guerrero²,

Gimeno³

et al. 2019

Electronics

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This work presents a reconfigurable RF converter for DVB-T television applications using triple-play over GPON. The system takes the DVB-T input, a wavelength division multiplexing (WDM) signal with spectral inversion in the range from 47 M Hz –1000 M Hz , up-converts its frequency to the band-pass of a highly selective surface-acoustic wave (SAW) filter centered at 1 . 3 G Hz , and then down-converts it so that it is compatible with the antenna input of conventional television sets. The designed RF converter incorporates two pairs of frequency synthesizer and mixer, based, respectively, on an integer-N phase-locked loop (PLL) with two LC-tank VCOs with 128 coarse tuning bands in the range from 1.35 G Hz –2.7 G Hz , and a double-balanced Gilbert cell, modified for better impedance matching and improved linearity. It is fed with regulated supplies compensated in temperature and programmed by an I 2 C interface operating on five 16-bit registers. This work presents the experimental characterization of the whole system plus selected cells for stand-alone testing, which have been fabricated in a 0 . 18 m CMOS process.

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