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algorithm assumed asymptotic average AWGN bandwidth base station baseband binary bit error probability carrier carrier synchronizer CDMA channel mismatch codeword coherent Communications complex computational consider convolutional code correlation CTMC decision feedback equalizers decoder decorrelating deﬁned delay demodulation denotes density detection Division Multiple Access encoder equation error event estimate fading channel Figure ﬁnd ﬁnite ﬁrst function Gaussian noise Hadamard hand-off IEEE IEEE Trans input interference intersymbol interference interval iteration likelihood likelihood function linear loop matched ﬁlter matrix microcellular mobile multipath Multiple Access multiuser detector nonlinear obtained optimum output parameters partitioning path performance phase noise power control propagation QPSK QQFPM quadrature radio Rake receiver Rayleigh fading received signal Rician Rician fading samples sequence shown signal constellation signal-to-noise ratio simulation spectral spread spectrum synchronizer TDMA technique tion transmission transmitted trellis codes upper bound users values variable variance vector waveform worst-case