TY - JOUR
T1 - Experimental Investigation of Wavelet-Based Denoising Receiver for LOS Indoor Optical Wireless Communications Links
AU - Rajbhandari, S.
AU - Ghassemlooy, Z.
AU - Angelova, M.
PY - 2011/7/25
Y1 - 2011/7/25
N2 - This letter reports the experimental evaluation of the on-off keying (OOK) modulation technique for a nondirected line-of-sight (LOS) infrared optical wireless communication (OWC) link. Performance evaluation is carried out in a typical room environment in the presence of fluorescent light driven by an electronic ballast. The adverse effect of the fluorescent light inference (FLI) is demonstrated and a number of mitigating techniques including high pass filtering (HPF) and discrete wavelet transform (DWT)-based denoising are investigated. The study shows that DWT outperforms HPF for all data rates. The practical measurements are also verified using a computer simulation.
AB - This letter reports the experimental evaluation of the on-off keying (OOK) modulation technique for a nondirected line-of-sight (LOS) infrared optical wireless communication (OWC) link. Performance evaluation is carried out in a typical room environment in the presence of fluorescent light driven by an electronic ballast. The adverse effect of the fluorescent light inference (FLI) is demonstrated and a number of mitigating techniques including high pass filtering (HPF) and discrete wavelet transform (DWT)-based denoising are investigated. The study shows that DWT outperforms HPF for all data rates. The practical measurements are also verified using a computer simulation.
KW - Artificial light interference
KW - optical wireless communication
KW - wavelet transform
UR - http://www.scopus.com/inward/record.url?scp=80053228868&partnerID=8YFLogxK
UR - https://ieeexplore.ieee.org/document/5960772
U2 - 10.1109/LPT.2011.2162723
DO - 10.1109/LPT.2011.2162723
M3 - Article
AN - SCOPUS:80053228868
SN - 1041-1135
VL - 23
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 20
ER -