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A decision-feedback equalizer (DFE) for Multi-h CPM in aeronautical telemetry is presented in this paper. This algorithm estimates the inter-symbol interference and cancels it from the samples used to make the bit decisions. The approach improves the bit estimates sequentially, thereby increasing the probability of obtaining accurate estimates. Simulation results show an 1 dB improvement in bit error...
In this paper, we investigate the combination of Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (OFDM/OQAM) with spread spectrum Code Division Multiple Access (CDMA) transmission scheme as an alternative to classical Multicarrier-CDMA (MC-CDMA) system over multipath fading channel. The performance of real CDMA-OFDM/ OQAM transmission system with Walsh Hadamard...
Cyclic Delay Diversity (CDD) is a simple approach to provide spatial diversity for Orthogonal Frequency Division Multiplexing (OFDM) system. CDD provides not only the multipath diversity without channel coding but also a sample receiver structure. Discrete Hartley transform (DHT) as a linear precoding based OFDM outperforms the OFDM based on discrete Fourier transform (DFT) for it intrinsic frequency...
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