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- W1951574554 abstract "The bit-error rate (BER) performance of a DS-CDMA/QPSK system taking into account the effect of fast fading and high frequency offset is analyzed. The performance is obtained by deriving the SNR of the demodulated signal as a function of the correlation between received signal values and estimated values of the channel estimator. The derived SNR shows that the conventional channel estimator using a single integrator structure has some problems such as the degradation of estimator's performance from fast phase change. We propose a new channel estimator using a double integrator structure that is not affected by fast phase change. We also show the performance comparison between EQOC-QPSK and NEQOC-QPSK data modulation in third generation DS-CDMA. Finally, chip-based simulation is presented to confirm the derived BER performance." @default.
- W1951574554 created "2016-06-24" @default.
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- W1951574554 date "2002-11-27" @default.
- W1951574554 modified "2023-09-26" @default.
- W1951574554 title "Performance of a new channel estimator for fast fading and high frequency offset in DS-CDMA/QPSK" @default.
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- W1951574554 doi "https://doi.org/10.1109/pimrc.1998.731400" @default.
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