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In this paper, we propose a space-time block code (STBC) coding scheme with three decoding algorithms for the frequency-domain generation of single-carrier frequency division multiple access (SC-FDMA) which addresses the issue of orphan symbols. The proposed algorithms only require one time-slot to perform Alamouti coding as compared to the space-time coding and mapping (STCM) Scheme I which uses...
This paper presents a new blind carrier frequency offset (CFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) systems with constant modulus (CM) signaling. Both single-input single-output (SISO) systems and multiple-input multiple-output (MIMO) systems with orthogonal space-time block coding are considered. The proposed scheme is based on the reasonable assumption that the...
In this paper, we propose a robust STBC transmission scheme to combat the timing synchronization errors over frequency-selective multiple-access channels. First, the equivalent channel model in the presence of timing synchronization errors is derived and we find that the synchronization errors result in an equivalent channel model with larger number of correlated channel taps. Based on this correlated...
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