Title :
New closed-form expressions for differentially detected π/4-DQPSK system performance in AWGN and Rayleigh fading
Author :
Miller, Leonard E. ; Lee, Jhong S.
Author_Institution :
J.S. Lee Associates Inc., Rockville, MD, USA
fDate :
27 Jun-1 Jul 1994
Abstract :
The main objective of this paper is to show an exact derivation of the probability of error for π/4-shifted differentially encoded QPSK (π/4-DQPSK) when demodulated using differential detectors (correlators), in both AWGN and Rayleigh fading. This modulation and its noncoherent demodulation schemes have been adopted for use in TDMA (time-division multiple access) cellular telephone systems in the United States (IS-54) and in Japan
Keywords :
Gaussian noise; Rayleigh channels; cellular radio; correlators; demodulation; differential phase shift keying; error statistics; fading; land mobile radio; probability; quadrature phase shift keying; radiotelephony; telephony; time division multiple access; white noise; AWGN; IS-54; Japan; Rayleigh fading; TDMA; United States; cellular telephone systems; closed-form expressions; correlators; differential detectors; differentially detected π/4-DQPSK; error probability; modulation; noncoherent demodulation; system performance; time-division multiple access; AWGN; Closed-form solution; Correlators; Demodulation; Detectors; Fading; Quadrature phase shift keying; Rayleigh channels; System performance; Time division multiple access;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394859
