A Link Reliability Study of Optical Wireless Headset inside Aircraft Cockpit

Joumessi-Demeffo, Steve; Sahuguède, Stéphanie; Sauveron, Damien; Julien-Vergonjanne, Anne; Combeau, Pierre; Mercier, Bruno; Aveneau, Lilian; Boeglen, Hervé

doi:10.1109/glc.2019.8864135

Cited by 5 publications

(17 citation statements)

References 13 publications

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“…For the captain and first officer they are oriented between the two pilots, whereas for the third and fourth occupant at the cockpit rear the AP transceivers orientation is towards the cockpit door between the two pilots. In addition, as in [12], we have considered five possible locations and orientations of transceivers on the headset (see Fig.2). This spatial diversity is investigated to increase robustness regarding head and body movements and have been chosen regarding integration feasibility over the headset.…”

Section: A Environment Descriptionmentioning

confidence: 99%

“…Thus, we have developed a detailed 3D geometric model of the cockpit (illustrated in Fig.1) generated from a CAO file provided by AIRBUS, and then imported it into our software [12]. In addition, we have included the pilots bodies, fully articulated and animated using the Blender software [20].…”

Section: B Channel Modelmentioning

confidence: 99%

“…In all these works, optical transceivers were fixed in the environment. In [12], we have studied for the first time in the literature, OWC channel for an aircraft cockpit with transceivers included in headset worn by the pilots. This environment not only presents a complex geometry, but also involves to take account for pilots' movements.…”

Section: Introductionmentioning

confidence: 99%

“…This environment not only presents a complex geometry, but also involves to take account for pilots' movements. The work in [12] was based on a modeling approach of optical waves propagation inside an Airbus A350 cockpit including pilot and co-pilot presence and head movements. We have studied connectivity between optical transceivers included on two pilot's headset and an access point (AP) located in the cockpit ceiling.…”

Section: Introductionmentioning

confidence: 99%

“…In this article, we first extend the study carried out in [12] by considering four pilots in the cockpit instead of two and by taking into account more complex movements involving the pilots' bodies. In addition, to be robust regarding head and body movements, we investigate spatial diversity contribution on the headset and assess the interest of this solution.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Performance Trade-Offs of an Optical Wireless Communication Network Deployed in an Aircraft Cockpit

Joumessi-Demeffo

Sahuguède

Julien-Vergonjanne

et al. 2020

IEEE Open J. Commun. Soc.

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In this article, we explore the performance of optical wireless technology for ensuring audio communications inside an aircraft cockpit. One advantage is that, unlike radio frequencies, opaque objects block optical signals and, therefore, signals cannot pass through walls. This can reduce security risks against eavesdropping and hacking of the physical layer, which is one of the main concerns in the aviation environment. However, optical wireless technology faces some issues, including range limitation and sensitivity to blockages. To study the achievable performances, we propose a modeling of the channels for the uplink and the downlink between the headsets of the four pilots of an Airbus A350 and the access point at the cockpit ceiling. A ray-tracing approach associated with a Monte-Carlo method takes into account the 3D geometric model of the cockpit, the presence of the pilots and their movements. We show that using spatial diversity for headset transceivers can improve performance. Using IEEE 802.11 medium access control mechanism to ensure multiuser communication, the approach highlights the trade-offs between power and delay for a successful communication, linked to the maximum achievable data rate for a given performance level.

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Section: A Environment Descriptionmentioning

confidence: 99%

Section: B Channel Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance Trade-Offs of an Optical Wireless Communication Network Deployed in an Aircraft Cockpit

Joumessi-Demeffo

Sahuguède

Julien-Vergonjanne

et al. 2020

IEEE Open J. Commun. Soc.

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Toward Indoor Simulations of OPV Cells for Visible Light Communication and Energy Harvesting

Santos,

Julien-Vergonjanne,

Dkhil

et al. 2024

IEEE Access

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The massive deployment of IoT connected devices brings up different modern problems, such as radiofrequency spectrum saturation and energetic requirements. Organic photovoltaics are good candidates for indoor energy harvesting and data reception in a simultaneous lightwave information and power transfer scenario applied for IoT, at which the non-directive channel significantly contributes to the optical system performance. However, achieving the channel impulse response of diffuse links requires complex numerical approaches. This article presents the first ever OPV model used in a Monte-Carlo ray-tracing simulation, associated to theoretical and experimental validation. Finally, for the first time, an optical simulation with an OPV receiver is realized in a cubic environment, from which the received optical power and generated current distributions were obtained. Results show that the employed OPV is suited for indoor energy harvesting to supply low power IoT nodes, and with proper dedicated front-end, could manage to receive optical data in a SLIPT scenario.

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Optical Wireless Channel Simulation for Communications Inside Aircraft Cockpits

Combeau

Joumessi-Demeffo

Julien-Vergonjanne

et al. 2020

J. Lightwave Technol.

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Communications inside an aircraft cockpit are currently based on wired connections especially for the audio headsets used by the pilots. A wireless headset would be an advantage in terms of comfort and flexibility but the use of classical radio frequencies is limited by interference and security issues. Optical wireless communication technology is an option for headset connectivity. Indeed, as optical beams are confined, this technology provides robustness against the risk of hacking, thus increasing security. In addition, the use of optical waves ensures the absence of radio-frequency disturbances. Using simulation, this paper presents a thorough study of the optical wireless channel behavior inside the cockpit of an aircraft by considering a headset worn by a pilot possibly in motion and an access point at the ceiling. The impact of the characteristics of the environment model, such as the level of geometric description, the reflectivity of materials and for the first time, the ambient noise induced by the sun, is highlighted. System performance is evaluated in terms of optimal half-power angles and the necessary average optical power of the light sources.

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A Link Reliability Study of Optical Wireless Headset inside Aircraft Cockpit

Cited by 5 publications

References 13 publications

Performance Trade-Offs of an Optical Wireless Communication Network Deployed in an Aircraft Cockpit

Performance Trade-Offs of an Optical Wireless Communication Network Deployed in an Aircraft Cockpit

Toward Indoor Simulations of OPV Cells for Visible Light Communication and Energy Harvesting

Optical Wireless Channel Simulation for Communications Inside Aircraft Cockpits

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