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In this paper, we propose a suboptimal user selection algorithm based on block diagonalization (BD) with low complexity. An upper-bound of sum-rate capacity is deduced. And considering it as the selection criterion we get our proposed algorithm. Furthermore in simplification of the proposed algorithm it is regarded as the adaptive criterion instead of capacity formula. After that we analyze the computational...
Despite of performance improvement of multiple-input multiple-output (MIMO) system, the complexity and hardware cost is increased due to the using of multiple RF chains. Antenna subset selection is an alternative to mitigate the problem. Through selecting the best antenna subset, reduced number of RF chains can be deployed with small performance loss. In this paper, we propose a simple antenna selection...
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