NDLI: PSK to CSK mapping for hybrid systems involving the radio frequency and the visible spectrum

Content Provider	Springer Nature Link
Author	Ndjiongue, Alain Richard Shongwe, Thokozani Ferreira, Hendrik Christoffel Ngatched, Telex M. N. Han Vinck, A. J.
Copyright Year	2016
Abstract	This paper presents an efficient technique to map phase shift keying (PSK) signalling to colour shift keying (CSK) constellation, to establish a full link in hybrid systems involving the radio frequency (RF) and the visible spectrum. It fits in systems combining (first link) wireless communication technologies such as the wireless fidelity (WiFi) or wired communication technologies such as power line communications (PLC) to visible light communications (VLC) technology (second link). On the first link, PSK technique is used to convey the information, while, on the second link, a technique based on colour variation is deployed. WiFi standards targeted are those that employ PSK as sub-carrier modulation techniques (IEEE 802.11a/11g/11n). The PSK complex constellation observed at the output of the first link is converted into colours using the hue-saturation-value/intensity (HSV/I) colour models. The constant lighting required in VLC corresponds with the coordinate I of the HSI and the colour constraint is met by assigning adequate current intensities to the red-green-blue LEDs (RGB-LEDs) used. The design meets the requirements of CSK constellation design outlined in IEEE 802.15.7. The performance of the system is analysed through bit error rate curves obtained by simulations, for binary PSK (BPSK) and quadrature PSK (QPSK), 8PSK and 16PSK constellations. The results show that as the constellation size increases, the performance of the system decreases.
Starting Page	173
Ending Page	192
Page Count	20
File Format	PDF
ISSN	10184864
Journal	Telecommunication Systems
Volume Number	64
Issue Number	1
e-ISSN	15729451
Language	English
Publisher	Springer US
Publisher Date	2016-05-18
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PSK–CSK Visible light communications Hybrid RF-VLC systems CSK constellation design HSI colour family Complex vectors to colour mapping IT in Business Computer Communication Networks Artificial Intelligence (incl. Robotics) Probability Theory and Stochastic Processes
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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