In this paper, we propose a serially concatenated turbo-encodedfaster-than-Nyquist signaling (FTNS) transceiver that takes into accountFTNS-specific colored noise effects. The proposed low-complexity receivercarries out soft-decision frequency-domain equalization with the aid of theminimum-mean square error criterion while whitening the colored noise.Simulation results demonstrate that the proposed multi-stage-concatenated FTNSsystem achieves a better error-ratio performance than previous systems that donot consider colored noise effects in the high-symbol-packing FTNS regime.Furthermore, as an explicit benefit of the proposed iterative decoder,near-capacity performance is achieved with practical decoding complexity.
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