6533b86ffe1ef96bd12cd4e9

RESEARCH PRODUCT

Hybrid VLC/WiFi Architectures with Priority Feedback Channels

Ngo K. T.Giuliano F.Croce D.Mangione S.Tinnirello I.Garbo G.

subject

Visible Light CommunicationVLCEDCARadio FrequencyWiFiHybrid architecture

description

In this paper, we consider integrating Visible Light Communication (VLC) and WiFi technologies in an ultra-dense (massive) Internet of Things scenario, where WiFi links are used for complementing VLC links and vice-versa. Indeed, in case of mobility and/or bidirectional communications, limited coverage areas and self-generated interference can be an issue. We consider hybrid VLC/WiFi nodes where the VLC link is used for the majority of (data) traffic and the WiFi link is employed as a feedback channel (e.g. transmitting TCP ACKs). In presence of intense WiFi traffic, the WiFi network may be congested and thus, to fully exploit the VLC bandwidth, we discuss possible priority mechanisms to fully exploit the VLC link. Simulations in NS-3 demonstrate the effectiveness of the proposed solutions  

https://doi.org/10.23919/fitce56290.2022.9934522