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Spatial Quadrature Modulation for Visible Light Communication in Indoor Environment

Dawoud, Diana, Heliot, Fabien, Imran, Muhammad and Tafazolli, Rahim (2017) Spatial Quadrature Modulation for Visible Light Communication in Indoor Environment In: IEEE ICC 2017 Optical Networks and Systems Symposium, 2017-05-21 - 2017-05-25, Paris, France.

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Abstract

In this paper, a novel low-complexity and spectrally efficient modulation scheme for visible light communication (VLC) is proposed. Our new spatial quadrature modulation (SQM) is designed to efficiently adapt traditional complex modulation schemes to VLC; i.e. converting multi-level quadrature amplitude modulation (M-QAM), to real-unipolar symbols, making it suitable for transmission over light intensity. The proposed SQM relies on the spatial domain to convey the orthogonality and polarity of the complex signals, rather than mapping bits to symbol as in existing spatial modulation (SM) schemes. The detailed symbol error analysis of SQM is derived and the derivation is validated with link level simulation results. Using simulation and derived results, we also provide a performance comparison between the proposed SQM and SM. Simulation results demonstrate that SQM could achieve a better symbol error rate (SER) and/or data rate performance compared to the state of the art in SM; for instance a Eb/No gain of at least 5 dB at a SER of 10 4.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
NameEmailORCID
Dawoud, Dianad.dawoud@surrey.ac.ukUNSPECIFIED
Heliot, FabienF.Heliot@surrey.ac.ukUNSPECIFIED
Imran, MuhammadM.Imran@surrey.ac.ukUNSPECIFIED
Tafazolli, RahimR.Tafazolli@surrey.ac.ukUNSPECIFIED
Date : 2017
Copyright Disclaimer : © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Contributors :
ContributionNameEmailORCID
UNSPECIFIEDIEEE, UNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords : Visible light communications, direct detection, Intensity modulation, spatial modulation.
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 Mar 2017 12:28
Last Modified : 31 Oct 2017 19:12
URI: http://epubs.surrey.ac.uk/id/eprint/813796

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