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Time-domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) outperforms cyclic prefixed-OFDM (CP-OFDM) in spectrum efficiency at the expense of higher complexity. Up to now, TDS-OFDM has only been used in unidirectional transmission, such as broadcasting applications. The overwhelming complexity of removing the implicitly superposed interferences between the PN sequences and IDFT...
In practical wireless multiple-input multiple-output (MIMO) communications system, the channel estimation must be imperfect. Unfortunately, the channel estimation errors have not been taken into account by existing soft-output MIMO minimum mean square error (MMSE) vertical Bell lab space time (VBLAST) detectors when calculating the log-likelihood ratio (LLR) of each coded bit, i.e., the soft information...
Iterative soft-in/soft-out (SISO) minimum mean squared error (MMSE) soft interference cancellation (SIC) detector has been successfully applied to V-BLAST turbo receiver. To reduce the computation complexity, an iterative SISO SIC detector combined MMSE with match filter (MF) has been proposed. In this paper, we simplify the SISO MF SIC detector and propose two turbo receiver schemes, in which MMSE,...
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