1 / 14

Overview of Light Communication

This document provides a short overview of the use of light for wireless communications, including advantages, challenges, use cases, and market potential.

billowens
Download Presentation

Overview of Light Communication

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Light Communications Topic Interest GroupShort Overview of Light Communication Date: 2017-01-15 Author: Volker Jungnickel (Frauhnhofer HHI)

  2. Abstract This document presents a short overview on the use of light for wireless communications. Volker Jungnickel (Frauhnhofer HHI)

  3. LC in a nutshell What is LC? Unique Selling Points • Ubiquitous LED lighting as “hotspot” • Use of unregulated optical spectrum • Light does not pass through walls • No mutual interference with radio • Wireless communication via light • Retain mobility by using LED lighting • Bidirectional low and high speed data transmission Use cases • Wireless backhaul • Networkedstreetlights • Industrial communication • Localization • Conference rooms Volker Jungnickel (Frauhnhofer HHI)

  4. Advantages and Challenges for LC Advantages Challenges • Use existing lighting infrastructure for both, access and backhaul • No license fees, no RF interference • Idea: Secure links in limited areas as a complementto mobile radio • Mobility is supported • Dynamic rate adjustment • Handover and interference mgmt. • High-power LEDs are bright • Allow high spectralefficiency • Slow modulation(< 30 MHz BW) • Gbit/s links with little more energy • Non-line-of-sight links • Dimming • Handover in multicell multiuser scenarios Volker Jungnickel (Frauhnhofer HHI)

  5. Roadmap for LC B5G MU MIMO • P2P: Point-to-Point • MIMO: Multiple-Input Multiple-Output • MU: Multi-User LC (P2MP) • B5G: Networked LC (MP2MP) P2P 2016 2018 2020 2022 Volker Jungnickel (Frauhnhofer HHI)

  6. Use cases for LC IEEE 802.15.7r1 Technical Considerations Document, 15-15-0492-xx-007a-technical-considerations-document.doc Volker Jungnickel (Frauhnhofer HHI)

  7. Robust, rate adaptive optical link Robust against weather conditions (fog, snow) Easy adjustment, low cost design Networked streetlight, Smart city, 5G deployment Mobile backhaul Volker Jungnickel (Frauhnhofer HHI)

  8. SoA and Market Potential State of the Art Market Potential • LED-based Prototype (TRL6) • Tested in outdoorfieldtrial • Performance 600 Mbps @ 50 m500 Mbps @ 100 m 250 Mbps @ 200 m • No interference with existing RF links • Optical spectrum – No license fees • Optics has potential for higher data rates • Provisional mobile networks for big events • Backhaul for 5G network deployment • Gigabit wireless-to-the-home (WTTH) Volker Jungnickel (Frauhnhofer HHI)

  9. Personalized products need more flexible manufacturing Optical wireless cannot be jammed from outside a building Low latency (<5 ms is enough for >95% of all use cases) Robustness: LOS can be blocked  multiple links (MIMO) Industrial Wireless Volker Jungnickel (Frauhnhofer HHI)

  10. Personalized products need more flexible manufacturing Optical wireless cannot be jammed from outside a building Low latency (<5 ms is enough for >95% of all use cases) Robustness: LOS can be blocked  multiple links (MIMO) Industrial Wireless Volker Jungnickel (Frauhnhofer HHI)

  11. SoA and Market Potential State of the Art Market Potential • Early research (TRL1-3) • MIMO measurements in a manufacturingscenario • High pathloss lower rate • Power-efficientwaveforms (single-carrier, unipolar) • Shadowingissignificantandquite fast • Bit and power loading, rank-adaptive MIMO • LC has severe potential for industrial wireless • Radio has known issues • Would need licensed spectrum • Suffers from interference/jamming Volker Jungnickel (Frauhnhofer HHI)

  12. Combination of illumination and Gbit wireless “hotspot” Small cell size (1 m diameter), frequently reused Downlink is white light, uplink through infrared or RF Robust, bidirectional and rate-adaptive communication LC for mobile access Volker Jungnickel (Frauhnhofer HHI)

  13. SoA and Market Potential State of the Art Market Potential • Prototypes (TRL6) • Early-adopter‘stests in real applicationscenarios • Severalpilotinstallations • Mainau (conferenceroom) • Stuttgart (classroom) • Energyefficiencyand form factorare still an R&D topic, combinedwithGbitrates • Efficient MP2MP ist.b.d. • LC for meeting rooms • LC for classrooms • LC for home environments (in each luminaire) Volker Jungnickel (Frauhnhofer HHI)

  14. LC can be regarded as a useful extension of WiFi Smaller cell size, enhanced privacy Development from P2P  P2MP  MP2MP Use cases: Mobile backhaul, industrial wireless, wireless access Can be addressed partly by tailoring existing technologies 802.11n, ITU-T G.hn Mobile access scenario needs minaturization Economies of scale need a new standard New target is the mass market Summary Volker Jungnickel (Frauhnhofer HHI)

More Related