Title :
Hierarchical QAM: a spectrally efficient dc-free modulation scheme
Author :
Mirabbasi, Shahriar ; Martin, Ken
Author_Institution :
Toronto Univ., Ont., Canada
fDate :
11/1/2000 12:00:00 AM
Abstract :
A new spectrally efficient, dc-free modulation scheme called hierarchical quadrature amplitude modulation is proposed. The use of HQAM in high-data-rate digital communication systems opens new possibilities for the practical realization of highly integrated receivers.
Keywords :
digital radio; land mobile radio; quadrature amplitude modulation; radio receivers; HQAM; hierarchical QAM; hierarchical quadrature amplitude modulation; high-data-rate digital communication systems; highly integrated receivers; spectrally efficient dc-free modulation scheme; Amplitude modulation; Analog integrated circuits; Baseband; CMOS analog integrated circuits; CMOS digital integrated circuits; CMOS integrated circuits; Frequency shift keying; Quadrature amplitude modulation; Radio frequency; Transceivers;
Journal_Title :
Communications Magazine, IEEE
