High-efficiency optical coupling single-sideband modulation for OFDM–RoF–PON systems

Xue, Xuwei; Ji, Wei; Kang, Zhaoyuan; Huang, Kangrui; Li, Xiao

doi:10.1016/j.optcom.2015.08.035

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…XuweiXue et al demonstrated a single-sideband modulation based OFDM-RoF-PON system 2.5Gbps transmission rate. Results indicate that the proposed system offer transmission range of 40km below forward error correction (FEC) limit of 10 -3 with error vector magnitude (EVM) less than 0.1 [25]. Rong Tang et al experimentally demonstrated an OFDM-PON on the basis of fourth dimensional (4D) joint encryption and cascading chaotic model.…”

Section: Introductionmentioning

confidence: 99%

WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code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

confidence: 99%

WITHDRAWN: 1.6 Tbps hybrid bidirectional symmetric TWDM-OFDM PON using 2D spectral/spatial SWZCC code

SingSH

2023

Preprint

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“…With the increase of new optical communication system [11][12][13][14] services, the ultra-high speed and high spectrum efficiency have become primary demands for improving microwave photonic transmission. In order to reach these goals, advanced modulation formats and optical coherent demodulation are employed [15][16][17][18][19][20][21][22]. However, the sophisticated coherent modulation and demodulation technology increase the complexity of the remote unit, which is contradictory to our objective of using a simplified and low-cost optical remote unit.…”

Section: Introductionmentioning

confidence: 99%

A Radio over Fiber System with Simultaneous Wireless Multi-Mode Operation Based on a Multi-Wavelength Optical Comb and Pulse-Shaped 4QAM-OFDM

Zhou

Huang

et al. 2019

Electronics

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In this paper, we propose a radio over fiber transmission system with simultaneous wireless multi-mode operation based on multi-wavelength optical comb and pulse shaping. This study is an initial attempt to accomplish simultaneous wireless multi-mode operation on a single optical carrier. A multi-wavelength optical comb with 13 flat optical wavelengths and space of 10 GHz is achieved by utilizing radio frequency (RF)-optics modulation and parameter configuration. The central station contains four adjacent optical wavelengths separated from the multi-wavelength optical comb by a wavelength division multiplexer, that one is modulated by 4QAM-OFDM signals with an up-converted carrier frequency of 5 GHz. The signals modulated with a single-sideband can be obtained by employing pulse shaping. The single-sideband optical signals are combined with the other three optical wavelengths and then transmitted over a standard single-mode fiber with a length of 50 km. In this arrangement, we can obtain several wireless carriers with frequencies of 5 GHz, 25 GHz, 45 GHz, and 65 GHz by direct detection. These wireless carriers are used for wireless transmission between the RF remote units and the mobile terminals. Additionally, in the radio frequency (RF) remote unit, we have three pure optical sources that can be utilized for the uplink transmission. With single channel and direct optoelectronic modulation, the optical and wireless communication with 10 Gbps can be accomplished in the whole process of system network transmission.

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“…For the realization of MOC-enabled PON system, we use WDM technique to separate ONUs into several virtual point-to-point connections over the same physical infrastructure, a feature that enables efficient use of fiber and offers lower latency than time division multiplexing (TDM) based approaches [13]. As a promising multi-user access technology, orthogonal frequency division multiplexing (OFDM) technique is also employed in the MOC-enabled PON system due to its high spectrum efficiency and excellent robustness to chromatic dispersion [14]. To further improve the transmission efficiency, the downstream wired and wireless hybrid signals employ different frequency and modulation formats, so that these colourless ONUs can be connected with both wired users and wireless users.…”

Section: Introductionmentioning

confidence: 99%

Tunable Multiwavelength Optical Comb Enabled WDM-OFDM-PON With Source-Free ONUs

Xue

Huang

et al. 2018

IEEE Photonics J.

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In this paper, we propose and experimentally demonstrate a multiuser wavelength-division-multiplexing passive optical network (WDM-PON) system combining with orthogonal frequency division multiple (OFDM) technique. A tunable multiwavelength optical comb (MOC) is designed to supply flat optical lines for assisting the configuration of the proposed multiple source-free optical network units enhanced WDM-OFDM-PON system. Schematized by cascading a phase modulator and an intensity modulator with a recirculation loop, the MOC can output 29 ideal channel optical comb lines with the flatness of 0.85 dB. For the MOC enabled WDM-OFDM-PON system, source-free and interference-free multiuser upstream transmission over a single fiber can be efficiently supported, while downstream transmission channels can convey the baseband data stream and radio frequency OFDM signals simultaneously so that the proposed system can be connected to wire-line users and wireless users simultaneously.

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High-efficiency optical coupling single-sideband modulation for OFDM–RoF–PON systems

Cited by 7 publications

References 18 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

A Radio over Fiber System with Simultaneous Wireless Multi-Mode Operation Based on a Multi-Wavelength Optical Comb and Pulse-Shaped 4QAM-OFDM

Tunable Multiwavelength Optical Comb Enabled WDM-OFDM-PON With Source-Free ONUs

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