• Login
    View Item 
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    •   Home
    • Office of Sponsored Research (OSR)
    • KAUST Funded Research
    • Publications Acknowledging KAUST Support
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Flexible LED Index Modulation for MIMO Optical Wireless Communications

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Conference Paper
    Authors
    Yesilkaya, Anil
    Purwita, Ardimas Andi
    Panayirci, Erdal
    Poor, H. Vincent
    Haas, Harald
    KAUST Grant Number
    OSR-2016-CRG5-2958-02
    Date
    2020-12
    Permanent link to this record
    http://hdl.handle.net/10754/668845
    
    Metadata
    Show full item record
    Abstract
    The limited bandwidth of optical wireless communication (OWC) front-end devices motivates the use of multipleinput- multiple-output (MIMO) techniques to enhance data rates. It is known that very high multiplexing gains can be achieved by spatial multiplexing (SMX) at the cost of prohibitive detection complexity. Alternatively, in spatial modulation (SM), a single light emitting diode (LED) is activated per time instance where information is carried by both the signal and the LED index. Since only one LED is active, both the transmitter (TX) and receiver (RX) complexity reduce significantly while retaining the information transmission in the spatial domain. However, this simplified TX utilization approach leads SM to suffer from significant spectral efficiency losses compared to SMX. In this paper, we propose a technique that benefits from the advantages of both systems. Accordingly, the proposed flexible LED index modulation (FLIM) technique harnesses the inactive state of the LEDs as a transmit symbol. Therefore, the number of active LEDs changes in each transmission, unlike conventional techniques. Moreover, the system complexity is reduced by employing a linear minimum mean squared error (MMSE) equalizer and an angle perturbed receiver. Numerical results show that FLIM outperforms the reference systems by at least 6 dB in the low and medium/high spectral efficiency regions.
    Citation
    Yesilkaya, A., Purwita, A. A., Panayirci, E., Poor, H. V., & Haas, H. (2020). Flexible LED Index Modulation for MIMO Optical Wireless Communications. GLOBECOM 2020 - 2020 IEEE Global Communications Conference. doi:10.1109/globecom42002.2020.9322528
    Sponsors
    This work was supported by EPSRC under Established Career Fellowship Grant EP/R007101/1. This work was also supported in part by the Scientific and Technical Research Council of Turkey (TUBITAK) under the 1003- Priority Areas R&D Projects support Program No. 218E034 and KAUST under Grant No. OSR-2016-CRG5-2958-02. A. Yesilkaya acknowledges the financial support from Zodiac Inflight Innovations (TriaGnoSys GmbH). A. A. Purwita acknowledges the financial support from Indonesian Endowment Fund for Education (LPDP). H. Haas acknowledges support from the Wolfson Foundation and the Royal Society.
    Publisher
    IEEE
    Conference/Event name
    2020 IEEE Global Communications Conference, GLOBECOM 2020
    ISBN
    9781728182988
    DOI
    10.1109/globecom42002.2020.9322528
    Additional Links
    https://ieeexplore.ieee.org/document/9322528/
    ae974a485f413a2113503eed53cd6c53
    10.1109/globecom42002.2020.9322528
    Scopus Count
    Collections
    Publications Acknowledging KAUST Support

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.