D. Miras, L. Maret, M. Maman, M. Laugeois, X. Popon, D. Kténas
{"title":"An OWC network solution with intercell interference coordination","authors":"D. Miras, L. Maret, M. Maman, M. Laugeois, X. Popon, D. Kténas","doi":"10.23919/GLC.2018.8319105","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319105","url":null,"abstract":"We describe the first integrated indoor LiFi network solution with inter-cellular interference management. It uses novel LiFi integrated real-time modems with advanced layer 1–3 for adaptive rates up to 42Mbit/s and a flexible number of supported users per lamp. A network layer manages inter-cellular interference optimizing the spatial reuse of the resources. The network capacity is drastically increased compared to existing solutions without interference management. This system eases the LiFi network deployment in a dynamic way, without operators intervention for reconfiguration.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129934241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. N. A. Belmonte, L. M. Chaves, F. S. Torres, D. W. de Lima Monteiro
{"title":"On overcoming photodetector saturation due to background illumination while maintaining high sensitivity by means of a tailored CMOS pixel","authors":"P. N. A. Belmonte, L. M. Chaves, F. S. Torres, D. W. de Lima Monteiro","doi":"10.23919/GLC.2018.8319099","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319099","url":null,"abstract":"Visible Light Communication is a good candidate to substitute, or at least to work along with Wi-Fi at indoor environments. Nonetheless, it still faces several challenges, like the necessity of receivers with high sensitivity and Dynamic Range. This follows from the large DC level of the high brightness LED and the intense levels of background illumination. We present in this paper a review of an integrated circuit topology, the Bouncing Pixel, that avoids signal saturation, achieving both High Dynamic Range and high sensitivity, suited to be implemented on a chip. The Pixel has the potential to be a good candidate for Li-Fi applications at the receiver node, especially for IoT applications.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124985740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Cosmas, Ben Meunier, Kareem Ali, Nawar Jawad, Hongying Meng, Florian Goutagneux, Eric Legale, Matteo Satta, P. Jay, Xun Zhang, Chuanxi Huang, Jorge Garcia, Marios Negru, Yue Zhang, T. Kourtis, Charilaos Koumaras, C. Sakkas, Li-Ke Huang, R. Zetik, Krzysztof Cabaj, W. Mazurczyk, M. E. Cakan, A. Kapovits
{"title":"5G Internet of radio light services for Musée de la Carte à Jouer","authors":"J. Cosmas, Ben Meunier, Kareem Ali, Nawar Jawad, Hongying Meng, Florian Goutagneux, Eric Legale, Matteo Satta, P. Jay, Xun Zhang, Chuanxi Huang, Jorge Garcia, Marios Negru, Yue Zhang, T. Kourtis, Charilaos Koumaras, C. Sakkas, Li-Ke Huang, R. Zetik, Krzysztof Cabaj, W. Mazurczyk, M. E. Cakan, A. Kapovits","doi":"10.23919/GLC.2018.8319095","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319095","url":null,"abstract":"In this paper we present a 5G Internet Radio-Light (IoRL) architecture and services for museums that can be readily deployed because it utilizes unlicensed visible light and millimeter wave part of the electromagnetic spectrum and which is used to provide museums' visitors with accurate location, interaction, access to Internet and high resolution video on a Tablet PC. The paper describes the museum, its related use case scenarios, the user and functional requirements and the IoRL architecture.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121759894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multiple speaker localization and identification through multiple camera and visible light communication","authors":"Lefevre Florent, Fabián Seguel, Bombardier Vincent, Krommenacker Nicolas, Charpentier Patrick, P. Bertrand","doi":"10.23919/GLC.2018.8319102","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319102","url":null,"abstract":"We propose a novel method for the localization and the identification of a speaker in the context of conference situations. For doing this, LED lights attached to the microphones are used as visible light communications transmitters. Once the speaker activate the microphone, LED transmits the speaker identification. At the receiver side, LED lights are identified and separated from video streams acquired by a low cost IP CMOS camera. Then, identification of the speaker is performed by recovering the data from the separated image. Results in terms of BER acquired from experimental demonstration are presented for different distances between the camera and the light source, i.e., 35 cm, 1, 2 and 5 meters.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127633406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced design of visible light communication sensor for automotive applications: Experimental demonstration of a 130 meters link","authors":"A. Căilean, M. Dimian, Adrian Done","doi":"10.23919/GLC.2018.8319100","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319100","url":null,"abstract":"Communication-based vehicle safety technology represents one of the most promising solutions to enhance the safety and the efficiency of the transportation system. For this purpose, visible light communications (VLC) have great potential of development due to low-cost, widespread distribution, and unregulated radiation spectrum. Nevertheless, existing VLC systems are not able to fully comply with the requirements imposed by vehicle safety applications. One of the main aspects that need further enhancement is the communication distance. Within this context, this paper presents the preliminary experimental results of a novel VLC system achieving a 130 m traffic light to vehicle communication distance. The key elements for obtaining this result are the use of a phototransistor based VLC sensor for better sensitivity, a logarithmic transimpedance amplifier circuit to reduce the strong influence of parasitic light and the possibility of photoelement saturation, a Schmitt trigger with adaptive thresholds to enhance noise mitigation under variable signal-to-noise ratios, and advanced techniques for signal processing. To the best of our knowledge, this is the longest communication distance reported for automotive VLC link.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132883908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Faulwasser, René Kirrbach, Tobias Schneider, Alexander Noack
{"title":"10 Gbit/s bidirectional transceiver with monolithic optic for rotary connector replacements","authors":"Michael Faulwasser, René Kirrbach, Tobias Schneider, Alexander Noack","doi":"10.23919/GLC.2018.8319112","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319112","url":null,"abstract":"In an effort to evolve connectorless links with optical wireless technology, we present a bidirectional full-duplex optical wireless transceiver with a monolithic optic for rotating links. A small-scale design with a link up to 10 Gbit/s is demonstrated and bit error rate analyzed regarding crosstalk and alignment during rotation.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128019958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Little, M. Rahaim, Iman Abdalla, E. Lam, Richard Mcallister, A. Vegni
{"title":"A multi-cell lighting testbed for VLC and VLP","authors":"T. Little, M. Rahaim, Iman Abdalla, E. Lam, Richard Mcallister, A. Vegni","doi":"10.23919/glc.2018.8319111","DOIUrl":"https://doi.org/10.23919/glc.2018.8319111","url":null,"abstract":"Future deployments of LiFi will incorporate arrays of luminaires. We seek to explore the interactions among multiple users, mobility of devices, device orientation, and user traffic. We describe a new multi-cell lighting testbed created to study and optimize dense LiFi systems. The testbed is constructed with 15 commercial LED lights that are driven by custom LiFi drivers and a 16-channel software defined radio. We develop a model for the system for the purpose of predicting signal strength under mobility and different receiver orientations. Data collected in the testbed show good conformance to the model. Lastly, we show how the analytical model and the measured data can be used to study RSS-based VLP and VLC handover in multi-cell systems.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133115952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Atchutananda Surampudi, Sankalp Shirish Chapalgaonkar, A. Paventhan
{"title":"Can balloons produce Li-Fi? A disaster management perspective","authors":"Atchutananda Surampudi, Sankalp Shirish Chapalgaonkar, A. Paventhan","doi":"10.23919/GLC.2018.8319110","DOIUrl":"https://doi.org/10.23919/GLC.2018.8319110","url":null,"abstract":"Natural calamities and disasters disrupt the conventional communication setups and the wireless bandwidth becomes constrained. A safe and cost effective solution for communication and data access in such scenarios is long needed. Light-Fidelity (Li-Fi) which promises wireless access of data at high speeds using visible light can be a good option. Visible light being safe to use for wireless access in such affected environments, also provides illumination. Importantly, when a Li-Fi unit is attached to an air balloon and a network of such Li-Fi balloons are coordinated to form a Li-Fi balloon network, data can be accessed anytime and anywhere required and hence many lives can be tracked and saved. We propose this idea of a Li-Fi balloon and give an overview of it's design using the Philips Li-Fi hardware. Further, we propose the concept of a balloon network and coin it with an acronym, the LiBNet. We consider the balloons to be arranged as a homogenous Poisson point process in the LiBNet and we derive the mean co-channel interference for such an arrangement.","PeriodicalId":150652,"journal":{"name":"2018 Global LIFI Congress (GLC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131455160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}