2007
DOI: 10.1002/ett.1216
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Joint channel estimation and equalisation of fast time‐varying frequency‐selective channels

Abstract: This paper addresses joint channel and data estimation for transmission over frequency-selective and timevarying channels based on a Doppler-variant channel impulse response (CIR). A discrete spreading function (DSF), which corresponds to the Doppler Fourier series of the time-varying channel taps, is introduced. The spectral leakage associated with the Fourier series representation is reduced by oversampling in Dopplerdirection. This approach, however, requires joint channel estimation and equalisation (JCE).… Show more

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Cited by 2 publications
(5 citation statements)
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References 18 publications
(31 reference statements)
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“…As in [2], we address this problem by virtually lengthening the period N to N · ν with the oversampling factor ν ≥ 1, while retaining the optimization interval to the first N samples. By this Equation (7) becomes …”
Section: Oversampling In the Frequency Domainmentioning
confidence: 99%
See 1 more Smart Citation
“…As in [2], we address this problem by virtually lengthening the period N to N · ν with the oversampling factor ν ≥ 1, while retaining the optimization interval to the first N samples. By this Equation (7) becomes …”
Section: Oversampling In the Frequency Domainmentioning
confidence: 99%
“…This terminology originates from the field of wireless communications where spreading matrices are used to represent time-variant channels[2].…”
mentioning
confidence: 99%
“…The computation of w (h) for given w (l) is then simple as the independence assumptions ( 5) and (7) give that P Ci (x|m) = P Ci|R (x|r i + w…”
Section: Remark 7 (Notation)mentioning
confidence: 99%
“…This problem is usually mitigated by a channel estimation prior to the decoding. However, an independent estimation needs -especially for time varying channels [7] -considerable excess redundancy. The optimal approach would be to perform decoding, estimation, and equalisation simultaneously.…”
Section: Estimationmentioning
confidence: 99%
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