Title :
Improved performance of colour shift keying using Voronoi segmentation for indoor communication
Author :
Halder, Abhishek ; Barman, Abhirup Das
Author_Institution :
Inst. of Radio Phys. & Electron., Univ. of Calcutta, Kolkata, India
Abstract :
We analyze the performance of IEEE 802.15.7 colour shift keying (CSK) modulation for indoor visible-light optical wireless communication system. In CSK, the combined intensity of the R, G, and B of a white LED is held constant while their relative intensities vary. Design of multilevel CSK constellation for high bit rate transmission is a challenging problem. In this work, Voroni segmentation is employed for coding and decoding CSK constellation and system performance is analyzed. Monte Carlo simulation shows superiority of this method over other available CSK constellation design in terms of better received SNR for a given symbol error rate.
Keywords :
Monte Carlo methods; computational geometry; decoding; encoding; indoor communication; light emitting diodes; optical communication; optical communication equipment; optical information processing; optical modulation; CSK constellation design; CSK modulation; Monte Carlo simulation; SNR; Voronoi segmentation; coding; colour shift keying; decoding; high bit rate transmission; indoor visible-light optical wireless communication system; signal-to-noise ratio; symbol error rate; white LED; Color; Constellation diagram; IEEE 802.15 Standards; Light emitting diodes; Lighting; Receivers; CSK Constellation; LED; Voronoi Diagram;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices (NUSOD), 2014 14th International Conference on
Conference_Location :
Palma de Mallorca
Print_ISBN :
978-1-4799-3681-6
DOI :
10.1109/NUSOD.2014.6935380
