Asymmetrical TWDM-PON with 4 × 25-Gb/s downstream DSB OFDM and 4 × 10-Gb/s upstream OOK modulations

Lin, Bangjiang; Li, Yiwei; Zhang, Shihao

doi:10.1016/j.yofte.2015.09.007

Cited by 17 publications

(9 citation statements)

References 24 publications

(22 reference statements)

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“…𝐺(𝑘) mean zero-mean Gaussian random variable. Further, the signal in the fourth power is defined as [40]: 𝑅 4 (𝑘) = 𝐴. 𝑒 4𝑗(2𝜋𝑓 𝑜 𝑘𝑇+𝜑 𝑘 ) + 𝑃(𝑘)…”

Section: Motivation and Contributionmentioning

confidence: 99%

“…Bangjiang Lin et al proposed and experimentally demonstrated a 4×25/10 Gbps TWDM-PON system using double-sideband (DSB) OFDM D/S and OOK U/S modulations. The results indicate that the proposed system offers a power budget (PB) of 35.5dB over a 20km fiber range [4]. Iwa Kartiwa et al experimentally demonstrated a WDM-OFDM-PON over a 20km fiber link at 20Gbps using a reflective semiconductor optical amplifier (RSOA) in uplink transmission successfully [16].…”

Section: Introductionmentioning

confidence: 98%

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WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code

SingSH

2023

Preprint

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The hybrid time and wavelength division multiplexing passive optical network (TWDM-PON) with a 1:128 split ratio and 16- quadrature amplitude modulation orthogonal frequency division multiplexing (QAM-OFDM) modulation system using optical code division multiple access (OCDMA) code results in high transmission security, channel capacity and robustness against interference. Thus in this paper, a bidirectional symmetric 1.6 Tbps hybrid TWDM-OFDM PON system using two-dimensional spectral/spatial-single weight zero cross-correlation (2D-S/S SWZCC) code supporting a large number of users for long-reach as well as high-speed applications has been proposed and analysed considering fiber impairments and noise. Numerically calculated receiver sensitivity (RS) and splitter power budget (SPB) are -36dBm and 23dB for downstream as well as RS and SPB for upstream transmission of -33dBm and 10dB respectively showing the supremacy of using 2D-S/S SWZCC code in the system than other OCDMA codes. Also, the simulation results show that the proposed system using 2D-SS SWZCC code provides a faithful 120km transmission distance as well as a high transmission rate of 16×15/20Gbps with a maximum received power of -32.8dBm supporting more than 190 simultaneous users. The designed PON system offers the best performance over other conventional PONs. The number of users can be increased up to 250 with an optical signal-to-noise ratio of 110 dB and -30 dBm received power.

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Section: Motivation and Contributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code

SingSH

2023

Preprint

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“…2, for downlink, four downlink wavelengths with OFDM signals are multiplexed through ideal multiplexer, directed through a single-mode fiber (SMF) and passed to a passive splitter for downstream transmission. After amplification by using an optical amplifier (OA), the downlink signals are distributed to ONUs using an ideal de-multiplexer (Lin et al 2015). At the users' side, the receiver chooses its definite wavelength to decode the OFDM signal.…”

Section: System Architecturementioning

confidence: 99%

Performance analysis of symmetrical and bidirectional 40 Gbps TWDM-PON employing m-QAM-OFDM modulation with multi-color LDs based VLC system

2021

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In this work, a full-duplex time and wavelength division multiplexing-passive optical network (TWDM-PON) system is analysed. Orthogonal frequency division multiplexing (OFDM) with m-quadrature amplitude modulation (m-QAM) is employed to improve the performance of TWDM-PON for downstream and upstream transmission. Simultaneously, multi-color (390-750 nm) laser diodes (LDs) are employed for visible light communication (VLC) using various VLC links to encourage the information rate of fiber/VLC optical network. A TWDM-PON utilizing 16-, 32-and 64-QAM OFDM with ten LDs based VLC system has been analysed for full-duplex multi-color VLC signals of the system. The impact of the LDs input current and high transmission rate in the proposed PON/VLC link has been investigated for m-QAM OFDM modulation. The results show that the 40/40 Gbps 16-, 32-and 64-QAM signals over ten 8000 m VLC links and a 50 km fiber link are successfully transmitted at the modulation input current of 9 mA under bit error rate (BER) of 3.8×10 -3 .Also, the proposed system employing 16-, 32-and 64-QAM signals over a 10 km fiber and ten 10 m VLC links provide the maximum transmission rate of 120, 100 and 80 Gbps respectively. Moreover, the measured error vector magnitudes (EVMs) and calculated BER values for 16-QAM downstream and upstream signals, are well below the required FEC limit than high-order modulation formats. Further, the numerical analysis of the proposed system reveals the superiority of the proposed fiber/VLC links.

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“…Asymmetrical TWDM-PON (Time and Wavelength Division Multiplexed PON) with (4×25) Gbit/s downstream DSB OFDM (Double side band Orthogonal Frequency Division Multiplexing) and (4×10) Gbit/s upstream OOK (On-Off Keying) modulation experimentally demonstrates TWDM scheme based on Double side-band OFDM with 16 QAM (Quadrature amplitude modulation) mapping for downstream transmission and on-off key modulation for upstream transfer [7]. Their work achieve a 35.5 dB power budget for downstream and thanks to simplified upstream they were able to achieve a cost efficient upstream transmission with 42.5 dB power budget.…”

Section: Related Workmentioning

confidence: 99%

High Speed (100G) Access Networks

Horváth

Chlapek

Münster

et al. 2018

JCOMSS

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Abstract-Passive optical networks are currently the most promising solution for access networks. Increasing bandwidth requirements and big data applications need a huge bandwidth. Nowadays, gigabit passive optical networks do not seem to be suitable for these purposes. This paper is focused on describing the development, parameters and needs for High Speed Access Networks (such as 100G EPON). The simulations with current wavelengths plans are presented. For simulations we used VPITransmissionMaker TM 9.7. Our goal was to create a rudimentary bidirectional PON system with one ONU and do several simulation scenarios by artificially increasing loss in a splitter for simulating more ONUs. Our following results consist of BER values and eye diagrams for each simulation scenario and proof that 100G EPON networks are most promising networks for the future. We proved that the 100G-EPON networks fully support the basic and currently used split ratios. We also created a two-way communication model and evaluated the obtained data from the bit error-rate and system reach point of view. The entire model was compared with the final version of NG-PON2.

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Asymmetrical TWDM-PON with 4 × 25-Gb/s downstream DSB OFDM and 4 × 10-Gb/s upstream OOK modulations

Cited by 17 publications

References 24 publications

WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code

WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code

Performance analysis of symmetrical and bidirectional 40 Gbps TWDM-PON employing m-QAM-OFDM modulation with multi-color LDs based VLC system

High Speed (100G) Access Networks

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