A New LED Communication Model Based on Photonic Properties

Linnartz, J. M. G. (Uitgenodigde spreker)
Anton Alexeev (Spreker)
Xiong Deng (Spreker)
Paul van Voorthuisen (Spreker)

Activiteit: Types gesprekken of presentaties › Genodigd spreker › Wetenschappelijk

Beschrijving

WS10 – Workshop on Optical Wireless Technology for Enhanced Connectivity in 6G
Monday 13 September, 12:30-15:30 (UTC/GMT +3)

Periode	13 sep. 2021 → 16 sep. 2021
Evenementstitel	32nd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2021
Evenementstype	Congres
Locatie	Virtual, Helsinki, FinlandToon op kaart
Mate van erkenning	Internationaal

Documenten & links

A_new_LED_communication_model_based_on_photonic_properties__PIMRC_2021_ (6)
Bestand: application/pdf, 1,04 MB
Type: Tekst

Abstract—Optical Wireless Communication (OWC) is gaining popularity as it potentially offers interference–free communica- tion in dense environments. By using LEDs, cells of very small size can be created with sharp boundaries thus bandwidth can be reused very densely. Building an effective communication systems starts from understanding the channel. In scientific literature, various models for the LED response are in use. This overview paper starts from the non-linear recombination of electrons and holes in the LED semiconductor junction, which then appears to lead to a very tractable and simple signal processing model. In fact, the LED channel substantially differs from a radio channel. The paper summarizes recent progress in developing an LED channel model, based on the physics of photon generation in the active region. The LED Quantum Well (QW) creates a first–order low–pass effect and the hole- electron re-combinations are inherently non-linear. Thereby the LED exhibits dynamic distortion, that is, non-linearities that are are intertwined with memory effects. The model can be used to reduce power consumption and to increase throughput of LED OWC systems.