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Erschienen in:
2021 | OriginalPaper | Buchkapitel
16. MIMO System Decomposition into Eigenmodes
verfasst von : Joachim Speidel
Erschienen in: Introduction to Digital Communications
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Abstract
In this chapter we allude to a topic, which gives quite some inside into the functionality of a MIMO system. As we have seen, the MIMO channel matrix \(\mathbf {H}(k)\) introduces inter-channel interference to the receive signal We are now interested in the decoupling of the receive signal. To achieve this goal \(\mathbf {H}(k)\) has to be transformed into a matrix, in which only one diagonal is covered by entries unequal to zero and all remaining elements have to be zero. In the following we drop the discrete time k to simplify the notation.
$$\begin{aligned} \mathbf {r}(k)=\mathbf {H}(k)\mathbf {s}(k)+\mathbf {n}(k) \end{aligned}$$