Dataset for Hierarchical Colour-Shift-Keying Aided Layered Video Streaming for the Visible Light Downlink

Dataset supports: Zhu, C. at al (2016). Hierarchical colour-shift-keying aided layered video streaming for the visible light downlink. IEEE Access, 4, 3127-3152Colour-shift keying (CSK) constitutes an important modulation scheme conceived for the visible light communications (VLC). The signal constellation of CSK relies on three different-colour 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 a HCSK design example for transmitting scalable video sources with the aid of a recursive systematic convolutional (RSC) code. An optimisation 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 EEP scheme by about 1.7 dB of optical SNR at a peak signal-to-noise ratio (PSNR) of 37 dB, whilst optical SNR savings of up to 6.5 dB are attained at a lower PSNR of 36 dB.