Title :
Pulse shaping in unipolar OFDM-based modulation schemes
Author :
Tsonev, Dobroslav ; Sinanovic, S. ; Haas, Harald
Author_Institution :
Inst. for Digital Commun., Univ. of Edinburgh, Edinburgh, UK
Abstract :
This paper discusses the issue of pulse shaping in unipolar orthogonal-frequency-division-multiplexing-based modulation schemes for intensity modulation/direct detection systems. Three previously presented schemes, asymmetrically clipped optical OFDM, pulse-amplitude-modulated discrete multitone modulation, and unipolar orthogonal frequency division multiplexing, are investigated. The current work demonstrates how both unipolar and bipolar pulse shapes can be used for the generation of unipolar continuous-time signals.
Keywords :
OFDM modulation; pulse shaping; radio networks; bipolar pulse shapes; intensity modulation-direct detection system; pulse-amplitude-modulated discrete multitone modulation; unipolar OFDM-based modulation schemes; unipolar continuous-time signal; unipolar orthogonal-frequency-division-multiplexing-based modulation scheme; Modulation; OFDM; Optical pulse shaping; Optical sensors; Shape; Wireless communication;
Conference_Titel :
Globecom Workshops (GC Wkshps), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-4942-0
Electronic_ISBN :
978-1-4673-4940-6
DOI :
10.1109/GLOCOMW.2012.6477752
