OPPM and PWM concatenated modulation for LED indoor communication
2012 Symposium on Photonics and Optoelectronics, SOPO 2012（2012）
Abstract
In this paper, a kind of concatenated modulation with OPPM and PWM for LED indoor communication is proposed. 400 Mbit/s bit rate is achieved in analysis and 50 Mbit/s transmission rate is demonstrated in experiments. The Monte Carlo simulations are applied to get the BER curves of the system based on the AWGN channel. The modified bit-flipping algorithm could get 2dB coding gain more than the standard bit-flipping algorithm at the BER level of about 1e-5. © 2012 IEEE.
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Key words
low density parity check (ldpc) codes,overlapping pulse position modulation (oppm),pulse-width modulation (pwm),visible light communication (vlc),concatenated codes,pulse width modulation,light emitting diodes,encoding,monte carlo simulations,bit error rate,gain,monte carlo methods
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