Rotated Color Shift Keying for Visible Light Communications with Signal-Dependent Noise

Qian Gao; Khalid Qaraqe; Erchin Serpedin

doi:10.1109/LCOMM.2020.2967377

Rotated Color Shift Keying for Visible Light Communications with Signal-Dependent Noise

Qian Gao, Khalid Qaraqe, Erchin Serpedin^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

This letter proposes three distinct modulation schemes belonging to the class of rotated color-shift keying (CSK) to improve the performance of regular CSK over a tricolor visible light communications (VLC) channel subject to signal-dependent noise (SDN). In such channels, regular CSK schemes suffer from a severe constellation distortion. The proposed rotated CSK schemes termed respectively separative whitening-like rotation (SWR), multiplicative whitening-like rotation (MWR), and additive whitening-like rotation (AWR), provide error rate gains relative to the regular CSK. The proposed modulations are carried out by employing practical lighting constraints, including a relaxed color constraint by the MacAdam ellipses with appropriate steps.

Original language	English
Article number	8964565
Pages (from-to)	844-848
Number of pages	5
Journal	IEEE Communications Letters
Volume	24
Issue number	4
DOIs	https://doi.org/10.1109/LCOMM.2020.2967377
Publication status	Published - Apr 2020
Externally published	Yes

Keywords

Energy efficiency
Multidimensional signal processing
Visible light communication; Modulation

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10.1109/LCOMM.2020.2967377

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title = "Rotated Color Shift Keying for Visible Light Communications with Signal-Dependent Noise",

abstract = "This letter proposes three distinct modulation schemes belonging to the class of rotated color-shift keying (CSK) to improve the performance of regular CSK over a tricolor visible light communications (VLC) channel subject to signal-dependent noise (SDN). In such channels, regular CSK schemes suffer from a severe constellation distortion. The proposed rotated CSK schemes termed respectively separative whitening-like rotation (SWR), multiplicative whitening-like rotation (MWR), and additive whitening-like rotation (AWR), provide error rate gains relative to the regular CSK. The proposed modulations are carried out by employing practical lighting constraints, including a relaxed color constraint by the MacAdam ellipses with appropriate steps.",

keywords = "Energy efficiency, Multidimensional signal processing, Visible light communication; Modulation",

author = "Qian Gao and Khalid Qaraqe and Erchin Serpedin",

note = "Publisher Copyright: {\textcopyright} 1997-2012 IEEE.",

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N2 - This letter proposes three distinct modulation schemes belonging to the class of rotated color-shift keying (CSK) to improve the performance of regular CSK over a tricolor visible light communications (VLC) channel subject to signal-dependent noise (SDN). In such channels, regular CSK schemes suffer from a severe constellation distortion. The proposed rotated CSK schemes termed respectively separative whitening-like rotation (SWR), multiplicative whitening-like rotation (MWR), and additive whitening-like rotation (AWR), provide error rate gains relative to the regular CSK. The proposed modulations are carried out by employing practical lighting constraints, including a relaxed color constraint by the MacAdam ellipses with appropriate steps.

AB - This letter proposes three distinct modulation schemes belonging to the class of rotated color-shift keying (CSK) to improve the performance of regular CSK over a tricolor visible light communications (VLC) channel subject to signal-dependent noise (SDN). In such channels, regular CSK schemes suffer from a severe constellation distortion. The proposed rotated CSK schemes termed respectively separative whitening-like rotation (SWR), multiplicative whitening-like rotation (MWR), and additive whitening-like rotation (AWR), provide error rate gains relative to the regular CSK. The proposed modulations are carried out by employing practical lighting constraints, including a relaxed color constraint by the MacAdam ellipses with appropriate steps.

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JO - IEEE Communications Letters

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Rotated Color Shift Keying for Visible Light Communications with Signal-Dependent Noise

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