Probabilistic analysis of the semidefinite relaxation detector in digital communications


We consider the problem of detecting a vector of symbols that is being transmitted over a fading multiple--input multiple--output (MIMO) channel, where each symbol is an <i>M</i>--th root of unity for some fixed <i>M</i> &#8805; 2. Although the symbol vector that minimizes the error probability can be found by the so-called <i>maximum--likelihood (ML… (More)


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