Hybrid MMW-over fiber/OFDM-FSO transmission system based on doublet lens scheme and POLMUX technique

Mallick, Khaleda; Mandal, Paulomi; Mandal, Gour Chandra; Mukherjee, Rahul; Das, Binoy; Patra, Ardhendu Sekhar

doi:10.1016/j.yofte.2019.101942

Cited by 55 publications

(13 citation statements)

References 29 publications

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“…For outdoor application, a 600-m free-space transmission can meet the target of two building's communication [7]. As a laser light travels through a 600-m FSO link, the laser light's natural expansion [30] makes it difficult to totally couple the laser light with the fiber ferrule. Doublet lens at the receiving side is a reduction scheme to match the laser light with the fiber ferrule's field of view (FOV).…”

Section: Resultsmentioning

confidence: 99%

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

Huang

et al. 2020

J. Lightwave Technol.

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Section: Resultsmentioning

confidence: 99%

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

Huang

et al. 2020

J. Lightwave Technol.

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“…Researchers have also continued their work in the field of millimeter‐wave (MMW) communication over fibre as well as orthogonal frequency division multiplexing (OFDM) based free‐space optical (FSO) communication system for next‐generation video, voice, and data communication. Some of the recent articles like OFDM‐based 500 m/10 Gbps FSO transmission system [33], a bidirectional hybrid wireless fibre architecture for 6.25 Gbps OFDM data transmission [34], a 40‐GHz/80 GHz optical MMW source based on OFDM, and an OFDM‐FSO transport system [35], and an OFDM‐based free‐space fibre transport system using a polarization multiplexing technique [36] are reported. However, we have focused on the wired mode of long haul communication using the optical fibre, especially the FMF structure, and simulated experimental setup for verification of the proposed approach.…”

Section: Introductionmentioning

confidence: 99%

Structure for fast photonic medium on application of SDM communication using SiO ₂ doped with GeO ₂ , and F Materials

Behera

Varshney

Mohanty

2021

IET Nanodielectrics

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This work presents a new approach for the design of an FMF with a Gaussian core and a trench in the cladding. For the proposed few-mode fibre (FMF), Fused Silica (SiO 2) is considered as a host-material, whereas Germanium Oxide(GeO 2) and Fluorine(F)are taken as the dopant for large data transmission. The mole percentages of the dopant material along with the fibre profile parameters are varied to achieve 10 linearly polarized (LP) modes through the proposed FMF. The proposed FMF structure is tested and verified through simulated experiments. The results indicate the proposed FMF structure with the mole percentage 11.5% of GeO 2 , 2% of F, and the normalized full-width-half-maximum (FWHM) of the core in the range of 4 to 10 supports 10 LP modes in the order of LP 01 , LP 11 , LP 21 , LP 02 , LP 31 , LP 12 , LP 41 , LP 22 , LP 03 , and LP 51. The effective index difference (Δn eff) between the adjacent LP modes is maintained greater than 1 � 10 −3 and a weakly coupled 10x10 Gbps SDM transmission link is established through intensity-modulation and direct-detection (IM/DD) using the proposed Gaussian core-FMF. The link performance is analysed, verified and an acceptable bit-error-rate (BER) of 10 −20 is achieved over 50 km without amplifiers. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…Thus, PAM-DMT has been explored for IM/DD systems, but it also employs hermitian symmetry on the data symbols to attain the real signal in time domain. Even though some hybrid OFDM based waveforms are implemented for wireless VLC over fiber, the non linearity distortion remain uncontrolled [3], [4]. In [5], [6], Unique Word (UW)-OFDM is proposed for RF systems to improve performance by improving the correlation among the data symbols.…”

Section: Introductionmentioning

confidence: 99%

A Tunable Energy Signal for Intensity Modulation and Direct Detection Systems: Theory, Simulations, and Experiments

et al. 2020

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In this paper, we propose a novel method to generate real signal for Visible Light Communication (VLC) systems without using traditional hermitian symmetry on the data symbols obtained using M-ary Pulse Amplitude Modulation (PAM) which is named as Auxiliary PAM (Ax-PAM). We mathematically analyse this method to generate a real signal with tunable energy using auxiliary symbols at the transmitter and the corresponding receiver. Simulation results for Bit Error Rate (BER) show better performance over conventional PAM Discrete Multi-Tone (PAM-DMT) and Asymmetrically Clipped Optical Orthogonal Frequency Division Multiplexing (ACO-OFDM) even under clipping distortion and also demonstrate the tunable energy for the proposed scheme. Furthermore, the proposed scheme is implemented on a VLC test bed designed using Universal Software defined Radio Peripheral (USRP). The experimental results for estimated Signal to Noise Ratio (SNR) and achieved BER for Ax-PAM outperforms PAM-DMT and ACO-OFDM.

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Hybrid MMW-over fiber/OFDM-FSO transmission system based on doublet lens scheme and POLMUX technique

Cited by 55 publications

References 29 publications

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

Structure for fast photonic medium on application of SDM communication using SiO ₂ doped with GeO ₂ , and F Materials

A Tunable Energy Signal for Intensity Modulation and Direct Detection Systems: Theory, Simulations, and Experiments

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Hybrid MMW-over fiber/OFDM-FSO transmission system based on doublet lens scheme and POLMUX technique

Cited by 55 publications

References 29 publications

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

A Bidirectional FSO Communication Employing Phase Modulation Scheme and Remotely Injection-Locked DFB LD

Structure for fast photonic medium on application of SDM communication using SiO 2 doped with GeO 2 , and F Materials

A Tunable Energy Signal for Intensity Modulation and Direct Detection Systems: Theory, Simulations, and Experiments

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Structure for fast photonic medium on application of SDM communication using SiO ₂ doped with GeO ₂ , and F Materials