Title :
Color Shift Keying Communication System With a Modified PPM Synchronization Scheme
Author :
Delgado RajoÌ, Francisco A. ; Guerra, Vasco ; RabadaÌn Borges, Jose A. ; Rufo Torres, Julio ; PeÌrez-JimeÌnez, Rafael
Author_Institution :
Dept. de Ing. Telematica, Univ. de Las Palmas Gran Canaria, Las Palmas Gran Canaria, Spain
Abstract :
In this letter, a new synchronization scheme for color shift keying (CSK) modulation is presented. Proposed system uses pulse position modulation in combination with CSK to increase the bit rate and simultaneously control illumination intensity, avoiding flickering effects. Additionally, this modulation also provides synchronization for the color detection. CMOS sensors are also proposed as receiver devices in order to improve the bit error rate using a mean value calculation inside a region of interest. These devices give the RGB components in digital format, simplifying the receiver block.
Keywords :
optical communication; optical modulation; pulse position modulation; synchronisation; CMOS sensors; CSK modulation; RGB components; bit error rate; color detection; color shift keying communication system; digital format; flickering effects; illumination intensity control; mean value calculation; modified PPM synchronization scheme; pulse position modulation; receiver block; receiver devices; region of interest; visible light communications; Bit error rate; Image color analysis; Modulation; Receivers; Signal to noise ratio; Synchronization; Color shift keying; optical communications; visible light communications; wireless networks;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2337953
