Design and Implementation for a USRP – Based Visible Light Communications Transceiver

Abstract

In this article we report the results obtained from the design and implementation of an analog front-end prototype for Visible Light Communications (VLC). Complementary, a software defined radio device, the USRP (Universal Software Radio Peripheral), is used for producing a BPSK modulated signal. The obtained bit error rate (BER) is $9.76637\times 10^{-5}$ at a bit rate of 2.5 Mbps and a distance of 160 cm between transmitter and receiver. The obtained BER is less than the FEC limit of $3.8\times 10^{-3}$.