Title :
Sequences leading to minimum peak-to-average power ratios for DCT-based multicarrier modulation
Author :
Attallah, S. ; Nilsson, J. E M
Author_Institution :
Centre for Wireless Commun., Singapore
fDate :
7/23/1998 12:00:00 AM
Abstract :
Multicarrier transmission is normally implemented by using the fast Fourier transform. However, by using the discrete cosine transform (DCT) instead, the frequency separation between subchannels can be considerably improved. The authors derive a set of sequences resulting in constant modulus (envelope) time-domain discrete signals when the DCT is used in a multicarrier system
Keywords :
discrete cosine transforms; modulation; time-domain analysis; DCT-based multicarrier modulation; constant modulus; frequency separation; minimum peak-to-average power ratios; subchannels; time-domain discrete signals;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981073
