Title :
Rate-Adaptive DFT-Spread DMT and CDMA-DMT for 1-mm SI-POF Short-Range Links
Author :
Pikasis, Evangelos ; Karabetsos, Sotiris ; Nikas, Thomas ; Syvridis, Dimitris
Author_Institution :
Department of Informatics and Telecommunications, University of Athens, Athens, Greece
Abstract :
In this letter, rate-adaptive bit-loading techniques are explored for maximizing the transmission rate of spreading multicarrier modulation schemes over step index plastic optical fiber (SI-POF) short range transmission links. Both the discrete Fourier transform (DFT)-spread discrete multitone (DMT) and code division multiple access-DMT are experimentally evaluated and compared against conventional rate adaptive DMT, over a 50-m intensity modulation direct-detection (IM/DD) link of 1-mm PMMA SI-POF. It is shown that both schemes achieve better performance than DMT, whereas DFT-spread DMT behaves best among them, over the same experimental setup.
Keywords :
DFT-spread; DMT; Discrete multitone; MC-CDMA; SI-POF; bit loading; chow algorithm; multicarrier; precoded OFDM; rate adaptive;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2271324
