16-state nonlinear equalizer for IS-54 digital cellular channels

A simple receiver that consists of a Nyquist filter matched to the transmitter filter followed by a 16-state sequence estimator has been considered for a two-beam, frequency-selective fading channel with inter-beam delay up to one symbol. 16-state sequence estimator compensates for the two-beam fadi...

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Bibliographic Details
Published inProceedings of IEEE Pacific Rim Conference on Communications Computers and Signal Processing Vol. 1; pp. 89 - 95 vol.1
Main Authors Chou, W., McLane, P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1993
Subjects
Channel state information
Delay estimation
Equalizers
Frequency estimation
Frequency-selective fading channels
Matched filters
Performance analysis
Pulse shaping methods
State estimation
Transmitters
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Summary:A simple receiver that consists of a Nyquist filter matched to the transmitter filter followed by a 16-state sequence estimator has been considered for a two-beam, frequency-selective fading channel with inter-beam delay up to one symbol. 16-state sequence estimator compensates for the two-beam fading model that represents the channel between transmitter and receiver. Performance has been evaluated for perfect channel state information regarding fading and was found to be much superior to using a linear equalizer rather than a 16-state sequence estimator. The results compare favorably with earlier results that did not involve Nyquist pulse shaping. North American Digital Cellular fading parameters have been used in the performance analysis. Results are presented for both root-raised-cosine filtered /spl pi//4-DQPSK (differential quadrature phase shift keying) and QPSK modulation formats.< >
ISBN:0780309715
9780780309715
DOI:10.1109/PACRIM.1993.407213