Title :
Indoor optical wireless communications employing corner cube retroreflector for health monitoring system
Author :
Noonpakdee, Wasinee
Author_Institution :
Coll. of Innovation, Thammasat Univ., Bangkok, Thailand
Abstract :
This paper presents an indoor optical wireless communications using corner cube retroreflector (CCR) for health monitoring system. In this scheme, CCR is employed to modulate and reflect the obtained measurements from sensors to a central node and a medical center. We apply the intensity modulation-direct detection (IM/DD) with on-off-keying (OOK) modulation. An image sensor is utilized as a receiver, and the signal to noise ratio (SNR) at the image sensor is analyzed with consideration of the half power angle of the optical source, the transmitted power, and the patient´s location.
Keywords :
amplitude shift keying; biomedical communication; image sensors; indoor communication; optical communication; optical receivers; patient monitoring; retroreflectors; CCR; IM/DD; OOK modulation; SNR; central node; corner cube retroreflector; half power angle; health monitoring system; image sensor; indoor optical wireless communications; intensity modulation-direct detection; medical center; on-off-keying modulation; optical source; patient location; receiver; signal to noise ratio; transmitted power; Biomedical optical imaging; Optical imaging; Optical receivers; Optical reflection; Optical sensors; Optical transmitters; Signal to noise ratio; Corner Cube Retroreflector; Health Monitoring System; Indoor Optical Wireless Communication;
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2013 Fifth International Conference on
Conference_Location :
Da Nang
DOI :
10.1109/ICUFN.2013.6614906
