GLOBECOM '93: IEEE in Houston : Technical Program, Conference Record, Volume 4IEEE, 1993 - Computer networks |
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Page 29
... QPSK signals , and whose bandwidth occupancy is mini- mal . A comparison made between QPSK and optimized Q2PSK [ 1 ] shows that for a large bandwidth occupancy op- timized Q2PSK is just marginally more power - efficient than QPSK ...
... QPSK signals , and whose bandwidth occupancy is mini- mal . A comparison made between QPSK and optimized Q2PSK [ 1 ] shows that for a large bandwidth occupancy op- timized Q2PSK is just marginally more power - efficient than QPSK ...
Page 102
... QPSK By John W. Craig Interstate Electronics Corporation , Anaheim , CA 92803 NUMBER OF TAPS Figure 2. Unbalanced QPSK . Variance of. ABSTRACT Linear transversal filter equalization for an unbalanced QPSK signal is studied , and optimum ...
... QPSK By John W. Craig Interstate Electronics Corporation , Anaheim , CA 92803 NUMBER OF TAPS Figure 2. Unbalanced QPSK . Variance of. ABSTRACT Linear transversal filter equalization for an unbalanced QPSK signal is studied , and optimum ...
Page 105
... QPSK Staggered QPSK ( SQPSK ) is a special case of unbalanced QPSK ( UQPSK ) , and the previous analysis was set up so that the results would reduce easily to those for SQPSK . In this section these reductions are carried out and the ...
... QPSK Staggered QPSK ( SQPSK ) is a special case of unbalanced QPSK ( UQPSK ) , and the previous analysis was set up so that the results would reduce easily to those for SQPSK . In this section these reductions are carried out and the ...
Contents
Product Coded Modulation | 7 |
Systems | 18 |
Synchronization and Data Recovery | 35 |
Copyright | |
1 other sections not shown
Common terms and phrases
8PSK adaptive arg max assume asymptotic average bandwidth base station binary bit error blind equalization CDMA cell CELP channel model chip rate coder Communications components computed consider constellation convolutional codes correlation decision decorrelator degradation delay denote density detection DFE/RSSE distance EDTV encoder error probability error rate fading channel Figure filter frequency function given H₁ HDTV IEEE IEEE Trans input interference iteration Kalman filter linear matrix minimum mobile modulation code multipath multiuser narrowband Networks nonlinear obtained optimal optimum output P₁ packet parameters performance phase PN sequence product codes Q2PSK QPSK quantization rake receiver random Rayleigh fading Rayleigh fading channel received signal recursive RSSE samples satellite scheme SDTV sequence estimation shadowed users shown signal-to-noise ratio simulation slot synchronization talkspurt tap gains test statistic throughput tion track transmission transmitted trellis variance vector Viterbi algorithm Viterbi decoding voice