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Channel estimation for multiple-input, multiple-output (MIMO) systems is studied in this paper. In particular, we present a simplified MIMO channel estimator based on orthogonal design. The performance of the proposed scheme is theoretically analyzed and compared to that of the optimum maximum likelihood estimator. The effect of non-orthogonality of the training sequences is investigated. Some modifications...
In this paper, we apply the Jacobi iterative algorithm to combat intersymbol interference caused by frequency selective channels. An analytical bound of the proposed equalizer is analyzed in order to gain an insight into its asymptotic performance. Due to the error propagation problem, the potential of this algorithm is not reached in an uncoded system. However, its extension to a coded system with...
We investigate the performance of multirate layered space-time coded MIMO systems with successive decoding and interference cancellation (SDIC) receivers in quasi-static Rayleigh fading channels. The proposed framework can be viewed as a class of diagonal layered space-time coded system with each of the layers is encoded independently with different rates subject to equal per-layer outage probabilities...
We study a multirate layered architecture for multiple-input multiple-output (MIMO) quasi-static Rayleigh fading channels, which uses a diagonal space-time interleaved (DSTI) coded modulation and a low complexity linear successive decoding receiver. The key challenge involved with this architecture is estimating the per-layer rates. We derive the probability density functions of per-layer mutual information,...
In this paper, we propose a practical iterative transceiver design for multiple-input multiple-output (MIMO) frequency-selective wireless channels, which is able to realize a significant portion of the capacity promised by information theory. At the transmitter end, we exploit the idea of space-time bit-interleaved coded modulation (ST-BICM) scheme by using turbo or convolutional codes. This encoding...
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