TY - GEN
T1 - An advanced A-law companding algorithm in VLC-OFDM
AU - Zhang, Xiaojing
AU - Liu, Peng
AU - Liu, Jiang
AU - Liu, Song
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/2/3
Y1 - 2014/2/3
N2 - In visible light communication (VLC) systems, the employing of orthogonal frequency division multiplexing (OFDM) may produce nonlinear distortion, due to the nonlinear characteristics of LEDs and the high peak to average power ratio (PAPR) of OFDM. Moreover, the clipping block deteriorates the distortion. In this paper, an advanced A-law algorithm for alleviating such distortion in VLC-OFDM systems is proposed. Simulation result shows that the BER of VLC-OFDM systems can be obviously reduced by employing the advanced A-law algorithm with suitable companding parameters, compared with the original VLC-OFDM process.
AB - In visible light communication (VLC) systems, the employing of orthogonal frequency division multiplexing (OFDM) may produce nonlinear distortion, due to the nonlinear characteristics of LEDs and the high peak to average power ratio (PAPR) of OFDM. Moreover, the clipping block deteriorates the distortion. In this paper, an advanced A-law algorithm for alleviating such distortion in VLC-OFDM systems is proposed. Simulation result shows that the BER of VLC-OFDM systems can be obviously reduced by employing the advanced A-law algorithm with suitable companding parameters, compared with the original VLC-OFDM process.
KW - nonlinear companding
KW - nonlinear distortion
KW - orthogonal frequency division multiplexing (OFDM)
KW - visible light communication (VLC)
UR - http://www.scopus.com/inward/record.url?scp=84946689154&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946689154&partnerID=8YFLogxK
U2 - 10.1109/GCCE.2014.7031221
DO - 10.1109/GCCE.2014.7031221
M3 - Conference contribution
AN - SCOPUS:84946689154
T3 - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
SP - 721
EP - 722
BT - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE 3rd Global Conference on Consumer Electronics, GCCE 2014
Y2 - 7 October 2014 through 10 October 2014
ER -