Summary
IEICE Information and Communication Technology Forum
2015
Session Number:SESSION2
Session:
Number:SESSION2-3
Pilot Assisted Visible Light Communications
Sinan Sinanovic,
pp.-
Publication Date:2015-08-31
Online ISSN:2188-5079
DOI:10.34385/proc.22.SESSION2-3
Summary:
The pilot-assisted peak-to-average power ratio (PAPR) reduction technique for optical orthogonal frequency division multiplexing (OFDM) communication systems is simulated, analysed and empirically evaluated. The PAPR reduction is achieved by rotating the phase of data symbols with P iterations of randomly generated pilot symbol sequence. The results of our hardware implementation show a close agreement to that of computer simulations. Furthermore, we have obtained closed-form expression for complementary cumulative distribution function (CCDF) which shows close agreement with simulated results. In comparison with basic OFDM, where no PAPR reduction technique is implemented, experimental PAPR reduction gain of pilot-assisted OFDM (PA-OFDM) at a CCDF of 0.01 with P = 5 is about 1.6 dB. Furthermore, experimental results show that PAPR reduction gain increases as CCDF value decreases. The simulation and experimental results also show that the pilot-assisted technique does not cause deterioration of the bit error performance.