Title :
Position based access scheme for indoor optical wireless communication systems
Author :
Noonpakdee, Wasinee ; Liu, Jiang ; Shimamoto, Shigeru
Author_Institution :
Grad. Sch. of Global Inf. & Telecommun. Studies, Waseda Univ., Tokyo, Japan
Abstract :
This paper presents a novel position based access scheme for indoor optical wireless communication systems. In this scheme, we apply the Intensity Modulation-Direct Detection (IM/DD) with Quadrature Phase Shift Keying (QPSK) modulation. The I (in-phase) and Q (Quadrature) signal are transmitted separately in Additive White Gaussian Noise (AWGN) channel. The probability of error is analyzed with consideration of different mode numbers of the radiation lobe of Lambertian source, and position of the transmitters. The analytical result of this paper demonstrates that high level security for optical wireless communication systems can be achieved by specifying the receivers´ position where the signal can be demodulated successfully.
Keywords :
AWGN channels; demodulation; error statistics; indoor radio; optical modulation; optical receivers; optical transmitters; quadrature phase shift keying; telecommunication security; Lambertian source; additive white Gaussian noise; error probability; in-phase signal; indoor optical wireless communication systems; intensity modulation-direct detection; position based access scheme; quadrature phase shift keying modulation; quadrature signal; radiation lobe; receiver position; signal demodulation; transmitter position; Adaptive optics; Demodulation; Integrated optics; Optical receivers; Optical transmitters; Security; Wireless communication; Indoor Optical Wireless Communication; Infrared Communication; Modulation Scheme;
Conference_Titel :
Consumer Communications and Networking Conference (CCNC), 2011 IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-8789-9
DOI :
10.1109/CCNC.2011.5766649
