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In this paper, we propose a pilot aided carrier frequency offset (CFO) estimation schemes for the Faster-than Nyquist (FTN) transmission system. The FTN transmission would increase the data rate by overlapping the pulse closer than the Nyquist rate. For this reason, there have been some efforts to apply FTN theory to second generation of digital video broadcasting satellite (DVB-S2) standard. However,...
In this paper, we propose the lattice-reduction (LR) aided soft-output detector in conjunction with channel decoder for spectrally efficient frequency division multiplexing (SE-FDM) system. The SE-FDM system can increase spectral efficiency by overlapping the subcarrier closer than the orthogonality condition, but result in inter-carrier-interference (ICI) at receiver. Thus, we utilize the LR-aided...
In this paper, we present an improved leakage-based transmit precoding scheme that is composed of vector perturbation (VP), pre-filter (PF), and signal-to-leakage-plus-noise ratio (SLNR) precoder for multi-user multi-input multi-output (MU-MIMO) systems. In particular, we propose a new PF capable of greatly improving the system performance by mitigating residual leakage effects caused by VP. Through...
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