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Fractionally spaced linear joint detection for multitone CDMA systems

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2 Author(s)
van de Wiel, O. ; Commun. & Remote Sensing Lab., Univ. Catholique de Louvain, Belgium ; Vandendorpe, L.

We consider a fractionally spaced linear joint detector (FS-LIJD) for multitone code-division multiple-access (CDMA) systems. We first derive the structure of the receiver for a minimum mean-squared error (MMSE) criterion. Then, we exactly evaluate the bit-error rate (BER) achieved by this detector for binary phase-shift keying (BPSK) modulation in steady-state conditions. We consider an asynchronous scenario, where the signal of each user propagates over a two-path channel. The resistance of the detector against timing errors is studied, and the resistance against a near-far scenario is also demonstrated

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Vehicular Technology, IEEE Transactions on  (Volume:46 ,  Issue: 4 )