Principles of Nonlinear MIMO Receivers

  • Joachim SpeidelEmail author
Part of the Signals and Communication Technology book series (SCT)


As we have seen in the previous chapter, a linear receiver tries to reduce the impact of inter-channel interference and partially of the noise in the receive signal \(\mathbf {y}(k)\) of Fig.  18.1. Next, the signal is subject to a decision also called detection to recover the QAM symbols in each component \(y_{i}(k)\). Various decision strategies are known from communications theory and outlined in Part I. In this section, we will consider a Maximum Likelihood (ML) detector as a receiver. In contrast to the linear receiver, the signal \(\hat{\mathbf {s}}(k)\) will be estimated directly from the receive vector
$$\begin{aligned} \mathbf {r}(k)=\left( \begin{array}{cccc} r_{1}(k)&r_{2}(k)&\cdots&r_{N}(k)\end{array}\right) ^{T} \end{aligned}$$


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Institute of TelecommunicationsUniversity of StuttgartStuttgart, Baden-WurttembergGermany

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