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Channel Characteristics of Indoor Visible Light Communication Basic Links Based on Ray-tracing
Author(s): 
Pages: 5-8
Year: Issue:  1
Journal: Radio Engineering of China

Keyword:  visible light communicationray-tracing algorithmimpulse responseLambertian model;
Abstract: Visible light communication is an emerging wireless communication method.The paper presents a ray?tracing algorithm based on Lambertian model,which can accurately simulate the moving path and receiving process of each photon.Then six types of basic links of indoor visible light communication system are presented,the impulse response of each link is simulated,and the component and amplitude of the impulse response are analyzed.The simulations show that only 0?1%~7?2%photons can be received by the receiver. The power carried by the direct photons is 98?93%~99?8% of the total power carried by the received photons in the line?of?sight link, and the power carried by the once?reflected photons is 85?45%~98?08% of the total power carried by the received photons in the non?line?of?sight link.
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