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In this paper, we introduce a couple of hardware implementations of compactVLC transmitter and receiver for the first time. Compared with related works,our VLC transmitter is non-RLL one, that means flicker mitigation can beguaranteed even without RLL codes. In particular, we have utilized acentralized bit probability distribution of a prescrambler and a Polar encoderto create a non-RLL flicker mitigation solution. Moreover, at the receiver, a3-bit soft-decision filter is proposed to analyze signals received from realVLC channel to extract log-likelihood ratio (LLR) values and feed them to theFEC decoder. Therefore, soft-decoding of Polar decoder can be implemented toimprove the bit-error-rate (BER) performance of the VLC system. Finally, weintroduce a novel very large scale integration (VLSI) architecture for thecompact VLC transmitter and receiver; and synthesis our design under FPGA/ASICsynthesis tools. Due to the non-RLL basic, our system has an evidently goodcode-rate and a reduced-complexity compared with other RLL-based receiverworks. Also, we present FPGA and ASIC synthesis results of the proposedarchitecture with evaluations of power consumption, area, energy-per-bits andso on.

VLSI Architecture of Compact Non-RLL Beacon-based Visible Light Communication Transmitter and Receiver