Title :
Performance analysis of M-ary PPM in dimmable visible light communications
Author :
Rimhwan Lee ; Kyungsu Yun ; Jong-Ho Yoo ; Sung-Yoon Jung ; Jae Kyun Kwon
Author_Institution :
LED-IT Fusion Technol. Res. Center & Dept. of Electron. Eng., Yeungnam Univ., Gyeongsan, South Korea
Abstract :
We previously proposed M-ary pulse amplitude modulation based on inverse source coding which maximizes the transmission rate in visible light communications with dimming capability. This paper deals with M-ary pulse position modulation (M-PPM), where bit error rate and throughput are measures for comparison. The results show that the best modulation index M depends on dimming target and channel quality. Accordingly, adaptive modulation follows also depending on the two parameters.
Keywords :
adaptive modulation; error statistics; optical communication; optical modulation; pulse amplitude modulation; source coding; telecommunication channels; M-PPM; M-ary PPM; M-ary pulse amplitude modulation; M-ary pulse position modulation; adaptive modulation; bit error rate; channel quality; dimmable visible light communications; dimming capability; dimming target; inverse source coding; modulation index; throughput; transmission rate; Bit error rate; Image color analysis; Light emitting diodes; Modulation; Photonics; Source coding; Throughput; Adaptive modulation; M-ary pulse position modulation (M-PPM); dimming; light emitting diode (LED); visible light communication (VLC);
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2013 Fifth International Conference on
Conference_Location :
Da Nang
DOI :
10.1109/ICUFN.2013.6614846
