Evolution of Short-Range Optical Wireless Communications

Wang, Ke; Song, Tingting; Wang, Yitong; Fang, Chengwei; He, Jiayuan; Nirmalathas, Ampalavanapillai; Lim, Christina; Wong, Elaine; Kandeepan, Sithamparanathan

doi:10.1109/jlt.2022.3215590

Cited by 32 publications

(8 citation statements)

References 147 publications

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“…To implement these technologies, we require a reliable and high-speed wireless connectivity. Visible light communication (VLC) technology can be used to solve this issue with a variety of advantages [259]. A VLC system transmits data by modulating light waves in the visible spectrum: 380-780 nm [260].…”

Section: Visible Light Communication (Vlc)mentioning

confidence: 99%

A Review–Unguided Optical Communications: Developments, Technology Evolution, and Challenges

et al. 2023

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This review paper discusses the complete evolution of free-space optical (FSO) communication, also known as unguided optical communication (UOC) technologies, all the way back to ancient man’s fire to today’s machine-learning-supported UOC systems. The principles, significance, and developments that have happened over the past several decades, as well as installation methodologies, technological limitations, and today’s challenges of UOCs are presented. All the subsets of UOC: FSO communication, underwater optical wireless communication (UOWC), and visible light communication (VLC), with their technology/system developments, potential applications, and limitations are reviewed. The state-of-the-art developments/achievements in (i) FSO channel effects and their mitigation techniques; (ii) radio-over-FSO techniques; (iii) wavelength division multiplexing and sub-carrier multiplexing techniques; (iv) FSO for worldwide interoperability for microwave access applications; (v) space optical satellite communication (SOSC); (vi) UWOC; (vii) photoacoustic communication (PAC); (viii) light-fidelity; (ix) VLC; (x) vehicular VLC (V2LC); and (xi) optical camera communication are reviewed. In addition, the current developments on emerging technologies such as artificial intelligence (to improve the performance of UOC systems), energy harvesting (for the effective utilization of UOC channels), and near-future communication network scenarios (mandatory for secured broadband digital links) are covered. Finally, in brief, to achieve the full potential of UOC systems, challenges that require immediate research attention are summarized.

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Section: Visible Light Communication (Vlc)mentioning

confidence: 99%

A Review–Unguided Optical Communications: Developments, Technology Evolution, and Challenges

et al. 2023

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“…While VANET applications can function without localization, incorporating localization can improve the system performance when the vehicle's position is known (Table 2). VANETs use short-range networks for vehicle communication, allowing drivers to exchange messages with neighboring drivers [16,17]. This includes exchanging information about road safety, traffic conditions, and even parking spaces.…”

Section: Vanet Applications and Classificationsmentioning

confidence: 99%

“…Table 7 provides an overview of the parameters used in the five empirical propagation models. Figures [15][16][17][18] show the accumulated path losses for the five selected propagation models. The received signal strength versus the distance plot is also presented, revealing the performance of the five models.…”

Section: Propagation Models Versus Measurementsmentioning

confidence: 99%

Deploying a Low-Cost Wi-Fi-Based Vehicular Ad Hoc Network in a Shopping Mall Parking Lot: An Empirical Study

Sarkar,

Ahmed,

Gul

2023

Electronics

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Vehicular ad hoc networks (VANETs) have the potential to reduce car accidents by facilitating connectivity and warning message exchange between vehicles, both on roads and in parking lots. This research endeavored to accomplish three primary goals: conducting a field measurement in the parking lot of a large shopping mall in Auckland, developing an OPNET-based simulation model to analyze and validate the system performance, and analyzing the compatibility between five selected radio propagation models (Free-space, Shadowing Path-loss, Egli, Hata, and COST231). These models were selected based on their popularity and relevance to our study. We found that the “Free Space” model outperforms in the scenario in which measurements were conducted from the Level-1 car park to the Roadside. The received signal strengths in the parking lot ranged from −45 dBm to −92 dBm. This research also examines the coverage distance for the successful transmission of warning messages, achieving up to 57 m, 17.5 m, 9.4 m, and 68 m at parking levels 1, 2, 3, and the roadside, respectively. Research findings reveal that a low-cost Wi-Fi-based VANET system can be utilized to prevent car accidents in parking lots. Finally, we provide guidelines for network planners to deploy Wi-Fi-based VANET systems in parking lots.

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“…Optical wireless communication (OWC) is regarded as an emerging technology for the future. In contrast to traditional radio frequency communication, OWC using the optical spectrum for communication medium covering from ultraviolet (UV) and visible to infrared, , has abundant advantages such as wide bandwidth, no requirement for the spectrum license, absence of electromagnetic interference, low-energy consumption, and high efficiency. − OWC provides the mainstream technologies in visible light communication, free space optical communication, and underwater wireless optical communication, expanding the scope of communication applications in various environments such as space, underwater, indoors, and outdoors. , Its ongoing progress is anticipated to establish a solid foundation for the advancement of communication networks. Despite the high speed and large capacity, optical networks pose a significant security threat due to the exposure of information in free space during transmission.…”

Section: Introductionmentioning

confidence: 99%

Dual-Polarity Dember Photodetectors for Optical Encryption Communications

Chen,

Cao,

Zhang

et al. 2024

ACS Photonics

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Optical wireless communication has garnered significant interest, yet its inherent transparency poses a formidable challenge to ensure communication security. Optical encryption communication (OEC) emerges as a potential remedy; however, its widespread adoption is hindered by its intricate design and high operational complexity. Herein, we propose an OEC scenario employing self-powered dual-polarity Dember photodetectors (PDs) composed by a sandwich configuration of ITO/MASnI3/Ag. The highly manipulated photonic responses (i.e., direct optical absorption and localized surface plasmon resonance) together with the strong Dember effect by perovskite material empower the unbiased PDs to exhibit the reverse photocurrents (i.e., dual polarity) across a broad wavelength band, which shows a strong robustness against the variations of light source, material composition, and geometric setup. Moreover, the dual-polarity PDs show exceptionally high performances, i.e., an ultrahigh responsivity of 114.2 A/W, a large specific detectivity of 2.4 × 1012 Jones, and an ultrashort response time of ∼2.2 ns. Furthermore, we employ the dual-polarity PD as the receiver to establish a compatible OEC system, where the light components at wavelengths of 302 and 706 nm are taken as the main signal and secret key, respectively. A series of ASCII codes is encoded into the main signal and transmitted through the light and then successfully decoded on the receiver side by using the dual-polarity PD. It is verified that the information can be better encrypted with the introduction of the dual-polarity Dember PD. The study provides a promising approach for secure and high-performance optical communication through the integration of the newly developed PDs.

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Evolution of Short-Range Optical Wireless Communications

Cited by 32 publications

References 147 publications

A Review–Unguided Optical Communications: Developments, Technology Evolution, and Challenges

A Review–Unguided Optical Communications: Developments, Technology Evolution, and Challenges

Deploying a Low-Cost Wi-Fi-Based Vehicular Ad Hoc Network in a Shopping Mall Parking Lot: An Empirical Study

Dual-Polarity Dember Photodetectors for Optical Encryption Communications

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