Title :
Multiple-bit differential detection of offset QPSK
Author :
Simon, Marvin K.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
6/1/2003 12:00:00 AM
Abstract :
Analogous to multiple-symbol differential detection of quadrature phase-shift keying (QPSK), a multiple-bit differential detection scheme is described for offset QPSK that also exhibits continuous improvement in performance with increasing observation interval. Being derived from maximum-likelihood considerations together with the representation of differentially encoded offset QPSK as a continuous phase modulation, the proposed scheme is purported to be the most power-efficient scheme for such a modulation and detection method.
Keywords :
differential detection; error statistics; maximum likelihood detection; modulation coding; quadrature phase shift keying; average bit-error probability; continuous phase modulation; differentially encoded offset QPSK; maximum-likelihood detection; multiple-bit DOQPSK; multiple-bit differential detection; multiple-symbol differential detection; nonoffset QPSK; observation interval; power-efficient scheme; quadrature phase-shift keying; rectangular pulse shaping; upper bounds; Continuous improvement; Continuous phase modulation; Error probability; Maximum likelihood detection; Maximum likelihood estimation; Phase detection; Phase shift keying; Propulsion; Quadrature phase shift keying; Space technology;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.813262
