Title :
Adaptive Equalization for Indoor Visible-Light Wireless Communication Systems
Author :
Komine, Toshihiko ; Lee, Jun Hwan ; Haruyama, Shinichiro ; Nakagawa, Masao
Author_Institution :
Dept. of Inf. & Comput. Sci., Keio Univ., Kanagawa
Abstract :
White LED is considered as a strong candidate for the future lighting technology. We have proposed an optical wireless communication system that employs white LEDs for indoor wireless networks. In this system, LED is not only used as a lighting device, but also used as a communication device. The system has large optical power and large emission characteristic at transmitter to function as lighting device. Therefore, the BER performance is degraded excessively due to the effects of inter-symbol interference. In this paper, we evaluate the performance of adaptive equalizer with LMS algorithm in visible-light wireless environment. And we show the interval of training sequence for channel estimation
Keywords :
adaptive equalisers; channel estimation; error statistics; indoor radio; intersymbol interference; optical communication; BER; LED; adaptive equalization; channel estimation; indoor visible-light wireless communication systems; indoor wireless networks; inter-symbol interference; optical wireless communication; training sequence; Adaptive equalizers; Bit error rate; LED lamps; Light emitting diodes; Optical devices; Optical fiber networks; Optical transmitters; Stimulated emission; Wireless communication; Wireless networks;
Conference_Titel :
Communications, 2005 Asia-Pacific Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-9132-2
DOI :
10.1109/APCC.2005.1554067
