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Symbol timing recovery for wavelet-based linear modulations

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3 Author(s)
Luise, M. ; Dipt. di Ingegneria della Inf., Pisa Univ., Italy ; Marselli, M. ; Reggiannini, R.

This paper deals with symbol timing recovery for multirate transmission systems employing wavelets as signaling pulses either at baseband or with linear bandpass modulation. Our analysis is twofold: first, we investigate the impact of clock errors on the BER of the optimum receiver for a wavelet-based multirate signal. Second, we consider a non-data-aided maximum likelihood clock synchronization scheme implemented as a multiple delay-locked loop. We derive a linearized loop model and assess its performance in terms of tracking jitter variance. The analytical results are contrasted with those obtained by simulation and with the relevant modified Cramer-Rao bound.

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Global Telecommunications Conference, 1999. GLOBECOM '99  (Volume:5 )

Date of Conference: