Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/653375
Title: Hierarchical Colour-Shift-Keying Aided Layered Video Streaming for the Visible Light Downlink
Authors: Chuan Zhu;Yongkai Huo;Junyi Jiang;Hua Sun;Chen Dong;Rong Zhang;Lajos Hanzo
subject: SVC|Visible Lignt Communications|Colour-Shift Keying|Unequal error protection
Year: 2016
Publisher: IEEE
Abstract: Colour-shift keying (CSK) constitutes an important modulation scheme conceived for the visible light communications (VLC). The signal constellation of CSK relies on three different-color light sources invoked for information transmission. The CSK constellation has been optimized for minimizing the bit error rate, but no effort has been invested in investigating the feasibility of CSK aided unequal error protection (UEP) schemes conceived for video sources. Hence, in this treatise, we conceive a hierarchical CSK (HCSK) modulation scheme based on the traditional CSK, which is capable of generating interdependent layers of signals having different error probability, which can be readily reconfigured by changing its parameters. Furthermore, we conceived an HCSK design example for transmitting scalable video sources with the aid of a recursive systematic convolutional (RSC) code. An optimization method is conceived for enhancing the UEP and for improving the quality of the received video. Our simulation results show that the proposed optimized-UEP 16-HCSK-RSC system outperforms the traditional equal error protection scheme by ~ 1.7 dB of optical SNR at a peak signal-to-noise ratio of 37 dB, while optical SNR savings of up to 6.5 dB are attained at a lower PSNR of 36 dB.
Description: 
URI: http://localhost/handle/Hannan/138066
http://localhost/handle/Hannan/653375
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

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Title: Hierarchical Colour-Shift-Keying Aided Layered Video Streaming for the Visible Light Downlink
Authors: Chuan Zhu;Yongkai Huo;Junyi Jiang;Hua Sun;Chen Dong;Rong Zhang;Lajos Hanzo
subject: SVC|Visible Lignt Communications|Colour-Shift Keying|Unequal error protection
Year: 2016
Publisher: IEEE
Abstract: Colour-shift keying (CSK) constitutes an important modulation scheme conceived for the visible light communications (VLC). The signal constellation of CSK relies on three different-color light sources invoked for information transmission. The CSK constellation has been optimized for minimizing the bit error rate, but no effort has been invested in investigating the feasibility of CSK aided unequal error protection (UEP) schemes conceived for video sources. Hence, in this treatise, we conceive a hierarchical CSK (HCSK) modulation scheme based on the traditional CSK, which is capable of generating interdependent layers of signals having different error probability, which can be readily reconfigured by changing its parameters. Furthermore, we conceived an HCSK design example for transmitting scalable video sources with the aid of a recursive systematic convolutional (RSC) code. An optimization method is conceived for enhancing the UEP and for improving the quality of the received video. Our simulation results show that the proposed optimized-UEP 16-HCSK-RSC system outperforms the traditional equal error protection scheme by ~ 1.7 dB of optical SNR at a peak signal-to-noise ratio of 37 dB, while optical SNR savings of up to 6.5 dB are attained at a lower PSNR of 36 dB.
Description: 
URI: http://localhost/handle/Hannan/138066
http://localhost/handle/Hannan/653375
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7482661.pdf71.34 MBAdobe PDFThumbnail
Preview File
Title: Hierarchical Colour-Shift-Keying Aided Layered Video Streaming for the Visible Light Downlink
Authors: Chuan Zhu;Yongkai Huo;Junyi Jiang;Hua Sun;Chen Dong;Rong Zhang;Lajos Hanzo
subject: SVC|Visible Lignt Communications|Colour-Shift Keying|Unequal error protection
Year: 2016
Publisher: IEEE
Abstract: Colour-shift keying (CSK) constitutes an important modulation scheme conceived for the visible light communications (VLC). The signal constellation of CSK relies on three different-color light sources invoked for information transmission. The CSK constellation has been optimized for minimizing the bit error rate, but no effort has been invested in investigating the feasibility of CSK aided unequal error protection (UEP) schemes conceived for video sources. Hence, in this treatise, we conceive a hierarchical CSK (HCSK) modulation scheme based on the traditional CSK, which is capable of generating interdependent layers of signals having different error probability, which can be readily reconfigured by changing its parameters. Furthermore, we conceived an HCSK design example for transmitting scalable video sources with the aid of a recursive systematic convolutional (RSC) code. An optimization method is conceived for enhancing the UEP and for improving the quality of the received video. Our simulation results show that the proposed optimized-UEP 16-HCSK-RSC system outperforms the traditional equal error protection scheme by ~ 1.7 dB of optical SNR at a peak signal-to-noise ratio of 37 dB, while optical SNR savings of up to 6.5 dB are attained at a lower PSNR of 36 dB.
Description: 
URI: http://localhost/handle/Hannan/138066
http://localhost/handle/Hannan/653375
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7482661.pdf71.34 MBAdobe PDFThumbnail
Preview File