Title :
On the design of frequency-domain equalizers for OQPSK modulations
Author :
Dinis, Rui ; Luzio, Miguel ; Montezuma, Paulo
Author_Institution :
Inst. de Telecomun., Lisbon, Portugal
Abstract :
This paper considers frequency-domain receiver design for OQPSK signals (Offset Quaternary Phase Shift Keying). It is shown that conventional QPSK receivers are not suitable to OQPSK schemes since they lead to significant interference between in-phase (I) and quadrature (Q) components. To overcome this problem we propose several linear receivers where there is no I-Q interference. Our receivers are suitable to OQPSK schemes, significantly outperforming frequency-domain receivers designed for QPSK modulations.
Keywords :
quadrature phase shift keying; I-Q interference; OQPSK modulations; frequency-domain equalizers; linear receivers; offset quaternary phase shift keying; Equalizers; Fluctuations; Interference; OFDM modulation; Phase modulation; Phase shift keying; Power amplifiers; Quadrature phase shift keying; Signal design; Telecommunications;
Conference_Titel :
Sarnoff Symposium, 2010 IEEE
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4244-5592-8
DOI :
10.1109/SARNOF.2010.5469761
