High-Capacity Carrierless Amplitude and Phase Modulation for WDM Long-Reach PON Featuring High Loss Budget

Wei, Chia-Chien; Chen, Kuan-Zhou; Chen, Liwei; Lin, Che-Yu; Huang, W.K.; Chen, Jyehong

doi:10.1109/jlt.2016.2617370

Cited by 16 publications

(5 citation statements)

References 13 publications

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“…and phase modulation (CAP) is suitable for improving the spectral efficiency of the foregoing optical communication systems. Recent experimental works have demonstrated Gb/s data rate for short range POF/VLC communication with CAP [2], [7]- [9].…”

Section: Take Down Policymentioning

confidence: 99%

Subband Index Carrierless Amplitude and Phase Modulation for Optical Communications

Akande

Popoola

2018

J. Lightwave Technol.

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Subband index carrierless amplitude and phase modulation (SI-CAP) is proposed and investigated in this work to improve the performance of multi-band CAP (m-CAP). The bit-error-rate (BER) analysis of the proposed SI-CAP is derived and verified through computer simulations. A detection scheme is also developed for SI-CAP which achieves maximum likelihood (ML) performance at a significantly lower complexity. In addition, an experimental demonstration of the proposed SI-CAP is carried out for optical communication systems. Furthermore, adaptive equalization technique is implemented to further enhance the performance gain of SI-CAP. It is shown that for the same order of complexity, the SI-CAP exhibits higher spectral and energy efficiency in comparison to m-CAP. Therefore, the performance gain of SI-CAP along with its design flexibility make it a suitable candidate for optical communication systems. Index Terms-Multi-band carrierless amplitude and phase modulation (m-CAP), optical communication, visible light communication (VLC), index modulation (IM), step-index plastic optical fibre (SI-POF), adaptive equalization. I. INTRODUCTION There is an ever increasing demand for high speed data connection due to unprecedented growth in broadband communication and the expected ubiquitous connectivity of smart devices. This demand requires communication technologies that can support the existing overcrowded radio frequency (RF) communication to meet the future data traffic. Optical communication is one of such techniques as it offers huge spectrum with low cost devices [1]. Step-index plastic optical fibre (SI-POF) has received high interest in optical communication due to its low cost, ease of installation and resilience to electromagnetic interference [2]. In addition, visible light communication (VLC) has become an emerging technology in the field of optical wireless communication (OWC) [3]. The VLC can leverage existing lighting fixtures for data communication and its benefits include the use of low-cost devices, availability of huge spectrum and high security, among others [3], [4]. The commercially available white light emitting diodes (LEDs) that are predominantly employed for illumination and VLC have small modulation bandwidth and creates a bottleneck in achieving high data rate. Furthermore, high data rate transmission over SI-POF results in inter-symbol interference (ISI) due to its limited bandwidth-length product, typically 45 MHz × 100 m.

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Section: Take Down Policymentioning

confidence: 99%

Subband Index Carrierless Amplitude and Phase Modulation for Optical Communications

Akande

Popoola

2018

J. Lightwave Technol.

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“…Therefore competent enough to prolong the transmission distance between OLT and ONU. Phase shifting modulation offers high extinction ratio, less prone to dispersion and nonlinear effect [14] [15]. Transmission distance enhancement at high data is limited to short distance due to effects of dispersion.…”

Section: Introductionmentioning

confidence: 99%

An Economical and Ultra Dense WDM-PON System with Polarization Interleaving and PWR

Sachdeva¹,

Bansal²

2022

J. Phys.: Conf. Ser.

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In this paper, a cost effective and easy maintenance based dispersion compensation technique is proposed in ONU of the wavelength reused wavelength division multiplexing reliant passive optical network. Moreover, in order to suppress intra-channel crosstalk DQPSK is employed for downstream and for inter-channel crosstalk suppression, polarization interleaving is used in the system. Furthermore, for the investigation of proposed system in terms of dispersion reduction, three different scenarios are considered such that system with only DCF, linearly chirped FBG and joint module of DCF+FBG. System has total 4 channels and each has bit rate of 20 Gb/s with 25 GHz channel spacings. It is observed that joint module of DCF+FBG has maximum ability to compensate dispersion and linearly chirped FBG has least performance. Proposed joint technique for pulse width reduction in ONU is cost effective, highly efficient to combat with pulse width reduction issues and also needs very less maintenance.

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“…In previous works, we demonstrated that these issues can be mitigated using high optical launch power. Essentially, high launch power directly increases the loss budget and indirectly reduces power fading via strong self-phase modulation (SPM) [16], [17]. Unfortunately, SPM tends to aggravate dispersioninduced nonlinear distortion.…”

Section: Introductionmentioning

confidence: 99%

Artificial Neural-Network-Based Pre-Distortion for High Loss-Budget 60-km Long-Reach Passive Optical Network

et al. 2020

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High launch optical power can compensate for severe fading and power loss in long-reach passive optical networks (LR-PONs); however, it also aggravates nonlinear degradation, which necessitates the use of complex DSP-based nonlinear compensation techniques at optical network users (ONUs). DSPrelated techniques also necessitate the use of additional hardware/software components by the receiver, which can greatly increase implementation costs and energy consumption, particularly when dealing with large-scale ONU deployment. This is the first study to propose artificial neural network (ANN)-based pre-distortion to eliminate the need for complex DSP at ONUs in a high-launch-power LR-PON, thereby permitting the use of a simplified architecture at the user end. In the first phase of the study, the proposed ANN-based pre-distortion scheme was implemented in a single-channel IMDD OFDM LR-PON , which achieved a data rate of >55 Gbps over 60-km transmission with a loss budget of 30 dB without the need for optical inline-or pre-amplification. In the second phase of experiments, the same scheme was applied to a 4-channel wavelength division multiplexing (WDM) OFDM LR-PON. Here, the proposed scheme achieved data rates of >200 Gbps using launch power of 18 dBm per lane, resulting in a loss budget of roughly 29 dB over 60-km single mode fiber transmission.

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High-Capacity Carrierless Amplitude and Phase Modulation for WDM Long-Reach PON Featuring High Loss Budget

Cited by 16 publications

References 13 publications

Subband Index Carrierless Amplitude and Phase Modulation for Optical Communications

Subband Index Carrierless Amplitude and Phase Modulation for Optical Communications

An Economical and Ultra Dense WDM-PON System with Polarization Interleaving and PWR

Artificial Neural-Network-Based Pre-Distortion for High Loss-Budget 60-km Long-Reach Passive Optical Network

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