Title :
Novel FEC Coding Scheme for Dimmable Visible Light Communication Based on the Modified Reed–Muller Codes
Author :
Sunghwan Kim ; Sung-Yoon Jung
Author_Institution :
Sch. of EE, Univ. of Ulsan, Ulsan, South Korea
Abstract :
In this letter, we propose a novel forward error correction (FEC) coding method using a modified Reed-Muller (RM) code for providing accurate dimming control in on-off keying (OOK) based visible light communication (VLC) systems. The proposed FEC scheme has a property that produces exactly same occurrence probability of 1´s and 0´s. Therefore, it can contain minimal compensation symbols in supporting multiple dimming target values. Moreover, VLC with our proposed scheme provides more coding gain than VLC scheme with the conventional FEC codes [the first-order RM and Reed-Solomon (RS) codes]. Simulation results for various dimming target values show that the proposed scheme leads to at least 2 dB or more signal-to-noise ratio (SNR) gain in 1% bit error rate (BER) than two FEC codes.
Keywords :
Reed-Muller codes; Reed-Solomon codes; amplitude shift keying; error correction codes; error statistics; forward error correction; optical communication equipment; optical control; Reed-Solomon codes; bit error rate; compensation symbols; dimmable visible light communication systems; dimming control; forward error correction coding method; modified Reed-Muller codes; occurrence probability; on-off keying; signal-to-noise ratio; Bit error rate; Encoding; Forward error correction; Light emitting diodes; Materials; Modulation; Optical filters; Dimming; Reed– Muller (RM) codes; light emitting diode (LED); visible light communication (VLC);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2163625
