Dual-carrier multiplexed laser-based hybrid transmitter for high data-rate indoor optical wireless communication

Ramachandrapura, Sathisha; Ahmad, Faheem; Prosad, Asish; Raghunathan, Varun

doi:10.1016/j.ijleo.2023.170522

Cited by 10 publications

(5 citation statements)

References 37 publications

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“…Compared to the recent multiple channels of OFDM-based PONs in Ref. [31][32][33]with achannel capacity of 2×4.2 Gbps [31], 3×1 Gbps [32], and 2×5.2 Gbps [33], the proposed HP-PONs/LiFi system exploits a significant amount of optical beams to offer greater capacity as well as more flexibility for end users at a symmetric and bidirectional data rateof 4×50 Gbps. This approach has acquired considerable attention from industry and academia [34].…”

Section: Resultsmentioning

confidence: 99%

Investigation of OFDM-Based HS-PON Using Front-End LiFiSystem for 5G Networks

Kumari,

Banawan,

Arya

et al. 2023

Photonics

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Fifth-generation (5G) technology has enabled faster communication speeds, lower latency, a broader range of coverage, and greater capacity. This research aims to introduce a bidirectional high-speed passive optical network (HS-PON) for 5G applications and services including mobile computing, cloud computing, and fiber wireless convergence. Using 16-ary quadrature amplitude modulation orthogonal frequency division multiplexing techniques, the system transmits uplinks and downlinks with a pair of four wavelengths each. Light fidelity (LiFi) services are provided with blue light-emitting-diode-based technology. With a threshold bit error rate (BER) of 10−3, the results demonstrate reliable transportation over a 100 km fiber at −17 dBm received power and in a maximum LiFi range of 20 m. Furthermore, the system offers symmetric 4 × 50 Gbps transmission rates under the impact of fiber–LiFi channel impairments with maximum irradiance and incidence half-angles of 500. Additionally, at threshold BER, the system provides a detection surface range from 1.5 to 4 cm2. Compared to existing networks, the system also provides a high gain and low noise figure. A number of features make this system an attractive option. These include its high speed, high reach, high split ratio, low cost, easy upgradeability, pay-as-you-grow properties, high reliability, and ability to accommodate a large number of users.

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Section: Resultsmentioning

confidence: 99%

Investigation of OFDM-Based HS-PON Using Front-End LiFiSystem for 5G Networks

Kumari,

Banawan,

Arya

et al. 2023

Photonics

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“…Notably, the same research group made a significant contribution to pandemic response through their study on the decontamination of N95 respirators [12].White light emitter and blue emitter based on highly efficient quantum dots are fabricated for optoelectronic devices in IISc Bangalore [13] [14]. Other sources based on a second and third harmonic generation is reported in the wavelength range 1500-1600 nm using an amorphous silicon based metasurface [15] in IISc Bangalore and the same group has also explored a hybrid LED-laser source for 5G testbed for visible light communication [16]. Frequency comb source based on microring resonator is designed in IIT Kharagpur [17].…”

Section: Optical Subsystems Systems and Network A Optoelectronics And...mentioning

confidence: 99%

Advancements in Optical Communication Research: A Review of India's Progress

Singh,

Chatterjee,

Suchita

et al. 2024

IEEE Photonics J.

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With the increasing use of internet and mobile phones, the capacity of the backbone optical communication link has been continually growing across the world and especially in India. The total optical fiber cable deployed for the BharatNet initiative of Government of India is expected to increase from 3.4 million km to 5 million km in 2024-25 just for providing lastmile connectivity. Considering this deep proliferation, this article attempts to capture the diverse research carried out in India in the domain of optical communication.

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“…Additionally, a PON system utilizing 8×10 Gbps delay modulation was realized over a 20 km fiber range. Ramachandrapura et al (2023) presented an OWC system using OFDM transmission at a 2×4.2 Gbps data rate. Sindhubala and Vijayalakshmi (2017) realized a VLC system considering background noise over a 20 m range at a 20 Kbps traffic rate.…”

Section: Introductionmentioning

confidence: 99%

Design and investigation of Symmetric Bidirectional VCSEL Laser incorporated Extensive Reach OWC System using considering channel impairments for beyond 5G application

Kumari,

Mishra

2024

Preprint

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Optical wireless communication (OWC) is recognized as a promising technology for future fifth generation (5G) networks. However, limited research efforts have been dedicated to the development of symmetric and bidirectional OWC systems using vertical cavity surface emitting lasers (VCSELs). In this study, we design and investigate a bidirectional 4×10 Gbps VCSEL-incorporated OWC system with an extensive reach, taking into account channel impairments. VCSELs offer high operating power and high reliability, making them suitable for this application. Simulation analyses have been conducted to evaluate the system performance in both the downlink and uplink directions, considering various factors such as noise, geometric losses, and attenuation losses. The results indicate that a maximum OWC range of over 130 km in the downlink direction and 128 km in the uplink direction can be achieved with a link loss of 0.001 dB. The system can tolerate a maximum link attenuation of 2.25 dB/km in the downlink direction and 2.2 dB/km in the uplink direction while maintaining a bit error rate (BER) within the acceptable limit of 10^-9. Additionally, the system demonstrates robust performance at a maximum operating temperature of 348K for VCSELs over a 10 km range at a data rate of 40/40 Gbps. The results further indicate that the maximum values of signal, noise, gain, noise figure, and optical signal-to-noise ratio (OSNR) are-69.68 dBm,-87.65 dBm,-21.14 dB, 21.14 dB, and 82.13 dB, respectively, at a total input power of-69.61 dBm. Comparative analysis with existing studies highlights the superiority of this work over previous efforts, demonstrating significant improvements in system performance and range. This research underscores the potential of bidirectional OWC systems using VCSELs for enhancing future 5G networks.

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Dual-carrier multiplexed laser-based hybrid transmitter for high data-rate indoor optical wireless communication

Cited by 10 publications

References 37 publications

Investigation of OFDM-Based HS-PON Using Front-End LiFiSystem for 5G Networks

Investigation of OFDM-Based HS-PON Using Front-End LiFiSystem for 5G Networks

Advancements in Optical Communication Research: A Review of India's Progress

Design and investigation of Symmetric Bidirectional VCSEL Laser incorporated Extensive Reach OWC System using considering channel impairments for beyond 5G application

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