Open AccessGigabit NRZ, CAP and optical OFDM systems over POF links using LEDs
Author(s) -
Jinlong Wei,
L. Geng,
David Cunningham,
R.V. Penty,
IH White
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.022284
Subject(s) - orthogonal frequency division multiplexing , gigabit , transceiver , quadrature amplitude modulation , light emitting diode , electronic engineering , transmission (telecommunications) , computer science , dissipation , qam , optics , optical communication , telecommunications , materials science , bit error rate , physics , engineering , wireless , decoding methods , channel (broadcasting) , thermodynamics
Simulations have been performed to compare the system capacity and power dissipation of NRZ, CAP-64 and 64-QAM-OFDM systems over FEC enhanced POF links using LEDs, for both unidirectional and bidirectional transmission. It is shown that CAP-64 outperforms NRZ and 64-QAM-OFDM in terms of system capacity and supports a record high 3.5 Gb/s bidirectional and 2.1 Gb/s unidirectional transmissions over 50 m POF. The CAP-64 transceiver consumes similar power compared with NRZ whilst the 64-QAM-OFDM transceiver consumes about twice as much.