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In multi-antenna wireless communications, spatial and temporal correlations always affect the performance of space-time codes (STC) designed for uncorrelated channels. In this paper, we use the Laplace transform and derive a closed-form expression for pairwise error probability (PEP) of STC over this double correlated fading channels. Numerical results show that the simple expression can achieve the...
In this paper, we propose a simple rate-one space-time-frequency block code (STFBC) for multiple input multiple output (MIMO)-orthogonal frequency division multiplexing (OFDM) system based on linear constellation precoding (LCP) and coordinate interleaving (CI). It is an attractive solution to get a high data rate transmission scheme in a multi-path fading environment. Firstly applying LCP for every...
In this paper, we propose a trace-orthogonal space-time coding (TD-STC) for multi-user systems. Based on the flexibility of linear dispersive codes (LDC), we apply it to broadcast channels in multi-user systems. According to the transmission rates of user's, we adaptively construct the transmitting space-time coding matrix. At the same time, we give the design criterion of the space time coding for...
In this paper, we present an open-loop transmit scheme for MIMO communications. We first use the uplink channel correlation matrix (UCCM) to calculate the array weight vectors for downlink beamforming (DLBF). Then based on the symbol error rate (SER) upper bound as design criterion, we derive an algorithm for adaptive power allocation among multiple beams, and thus develop the transmit scheme joint...
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