The performance of optical wireless OOK, 2-PPM and spread spectrum under the effects of multipath dispersion and artificial light interference
作者： K. K. Wong , T. O'Farrell , M. Kiatweerasakul
DOI: 10.1002/1099-1131(200011/12)13:7/8<551::AID-DAC456>3.0.CO;2-J
关键词: Optical wireless 、 Delay spread 、 Interference (wave propagation) 、 Telecommunications 、 Shot noise 、 Electronic engineering 、 Spread spectrum 、 Computer science 、 Chirp spread spectrum 、 Bit error rate 、 Direct-sequence spread spectrum
摘要: Indoor wireless infrared transmission systems are mainly affected by ambient light-induced shot noise, multipath dispersion and the interference produced artificial light sources. In this paper, spread spectrum techniques proposed to combat interference. The bit error rate performance of technique under combination these detrimental effects studied compared with that OOK 2-PPM. A novel analysis is derived provide a simplified common analytical platform facilitate comparison among three modulation schemes. Bit analyses for OOK, PPM taking into account combined first time. Analytical, simulation experimental results versus optical signal-to-noise ratio then presented. show very robust Copyright © 2000 John Wiley & Sons, Ltd.
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