Title :
A Fast Blind Detection Algorithm for Outdoor Visible Light Communications
Author :
Yi-Jun Zhu ; Zheng-Guo Sun ; Jian-Kang Zhang ; Yan-Yu Zhang
Author_Institution :
Nat. Digital Switching Syst. Eng. & Technol. Res. Center, Zhengzhou, China
Abstract :
In this paper, we consider an outdoor visible light communication system, in which on-off keying (OOK) modulation is utilized through an atmospheric turbulence-induced slow-fading channel. A new fast blind detection algorithm is proposed by following the generalized likelihood ratio test (GLRT) principle. In addition, a block coding scheme is presented to solve the unique identification issue and, thus, the error floor problem.
Keywords :
amplitude shift keying; atmospheric turbulence; encoding; fading channels; optical communication; GLRT; OOK; atmospheric turbulence-induced slow-fading channel; blind detection algorithm; block coding scheme; generalized likelihood ratio test; on-off keying modulation; outdoor visible light communication system; Algorithm design and analysis; Bit error rate; Complexity theory; Detection algorithms; Fading; Light emitting diodes; Signal to noise ratio; Rayleigh fading channel; Visible light communication (VLC); blind channel estimation; log-normal fading channel;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2015.2495104
