Acta Optica Sinica, Volume. 35, Issue 3, 306002(2015)
Channel Characterization Parameters of the Non-Empty Indoor Visible Light Communication Based on the Three-Dimension Ray Tracing and Finite State Markov Chain
By the means of three-dimension ray tracing method, the channel impulse response under the nonempty indoor visible light transmission environment and the root-mean-square (RMS) delay spread when light source locates in different positions of the ceiling are estimated. Based on this, the finite state Markov chain is used to model the indoor visible light fading channel, and the distribution of the non-empty indoor visible light channel impulse response is obtained. The results demonstrate that random distribution reflector imposes greater effects on the channel impulse response in the non- line of sight (NLOS) transmission environment than that in the line of sight (LOS) situation. Besides, the RMS delay spread is obvious when the light source locates at the corner of the ceiling instead of other positions, which means that the multipath effect is more obvious at this place.
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Deng Lijun, Fan Yangyu. Channel Characterization Parameters of the Non-Empty Indoor Visible Light Communication Based on the Three-Dimension Ray Tracing and Finite State Markov Chain[J]. Acta Optica Sinica, 2015, 35(3): 306002
Category: Fiber Optics and Optical Communications
Received: Sep. 11, 2014
Accepted: --
Published Online: Feb. 5, 2015
The Author Email: Lijun Deng (dengli@xaut.edu.cn)