Bit error rate performance of pi /4-DQPSK in a frequency-selective fast Rayleigh fading channel

The bit error rate (BER) performance of pi /4-differential quadrature phase shift keying (DQPSK) modems in cellular mobile communication systems is derived and analyzed. The system is modeled as a frequency-selective fast Rayleigh fading channel corrupted by additive white Gaussian noise (AWGN) and co-channel interference (CCI). The probability density function of the phase difference between two consecutive symbols of M-ary differential phase shift keying (DPSK) signals is first derived. In M-ary DPSK systems, the information is completely contained in this phase difference. For pi /4-DQPSK, the BER is derived in a closed form and calculated directly. Numerical results show that for the 24 kBd (48 kb/s) pi /4-DQPSK operated at a carrier frequency of 850 MHz and C/I >

[1]  B. Nelin,et al.  Corrections to "The Effect of Frequency Selective Fading on the Binary Error Probabilities of Incoherent and Differentially Coherent Matched Filter Receivers" , 1963 .

[2]  Donald L. Schilling,et al.  Probability of error of M-ary PSK and DPSK on a Rayleigh fading channel , 1988, IEEE Trans. Commun..

[3]  J. Proakis,et al.  Probabilities of Error for Adaptive Reception of M-Phase Signals , 1968 .

[4]  Michael B. Pursley,et al.  Performance of differentially coherent digital communications over frequency-selective fading channels , 1988, IEEE Trans. Commun..

[5]  K. Ohno,et al.  Postdetection diversity reception of QDPSK signals under frequency selective Rayleigh fading , 1990, 40th IEEE Conference on Vehicular Technology.

[6]  R. Maciejko.  Digital Modulation in Rayleigh Fading in the Presence of Cochannel Interference and Noise , 1981, IEEE Trans. Commun..

[7]  Steven H. Goode,et al.  A comparison of a limiter-discriminator, delay and coherent detection for pi /4 QPSK , 1990, 40th IEEE Conference on Vehicular Technology.

[8]  I. Korn.  Offset DPSK with differential phase detector in satellite mobile channel with narrow-band receiver filter , 1989 .

[9]  J.C.I. Chuang.  The effects of delay spread on 2-PSK, 4-PSK, 8-PSK and 16-QAM in a portable radio environment , 1989 .

[10]  N. Nakajima,et al.  A system design for TDMA mobile radios , 1990, 40th IEEE Conference on Vehicular Technology.

[11]  A. Neul.  Bit error rate for 4-DPSK in fast Rician fading and Gaussian noise , 1989, IEEE Trans. Commun..

[12]  Yoshihiko Akaiwa,et al.  Highly Efficient Digital Mobile Communications with a Linear Modulation Method , 1987, IEEE J. Sel. Areas Commun..

[13]  P. D. Morgan,et al.  Use of Four-Level Phase Modulation for Digital Mobile Radio , 1972 .

[14]  W. C. Jakes,et al.  Microwave Mobile Communications , 1974 .

[15]  William A. Gardner,et al.  Introduction to random processes with applications to signals and systems: Reviewer: D. W. Clarke Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PK, England , 1988, Autom..

[16]  Lloyd J. Mason.  An Error Probability Formula for M-ary DPSK in Fast Rician Fading and Gaussian Noise , 1987, IEEE Trans. Commun..

[17]  W.C.Y. Lee,et al.  Spectrum efficiency in cellular (radio) , 1989 .

[18]  Lloyd J. Mason.  Error Probability Evaluation for Systems Employing Differential Detection in a Rician Fast Fading Environment and Gaussian Noise , 1987, IEEE Trans. Commun..

[19]  T. Namekawa,et al.  Error rate performance of binary DPSK system with multiple co-channel interference in land mobile radio channels , 1984, IEEE Transactions on Vehicular Technology.

[20]  H. Suzuki.  Canonic receiver analysis for M-ary angle modulations in Rayleigh fading environment , 1982, IEEE Transactions on Vehicular Technology.