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A data-assisted channel estimation scheme to exploit the temporal channel correlation in massive multiple-input multiple-output uplink transmission is proposed. Specifically, the previous decoded uplink frame is used to suppress the inter-cell interference in the channel estimation of the current frame. Based on the proposed scheme, we derive the asymptotic signal-to-interference expression, and the...
It has been shown in the existing literature that data symbols could help to relieve the pilot contamination issue of massive multiple-input multiple-output systems. In this paper, we show that pilot information of interference users could be exploited jointly with the data-assisted transmission mechanism. Specifically, we consider the uplink transmission of a massive multiple-input multiple-output...
In a distributed MIMO system (D-MIMO), multiple base stations work in cooperation manner to enhance system throughput by suppressing inter-cell and inter-user interference. In this paper, we propose two practical distributed algorithms that are based on block diagonalization technique. The proposed schemes eliminate the need of iterative computations, and hence can be implemented without information...
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