The SIMO pre-log can be larger than the SISO pre-log
AuthorsVeniamin I. Morgenshtern, Giuseppe Durisi, and Helmut Bölcskei
ReferenceProc. of IEEE International Symposium on Information Theory (ISIT), Austin, TX, pp. 320-324, June 2010
AbstractWe establish a lower bound on the noncoherent capacity pre-log of a temporally correlated Rayleigh block-fading single-input multiple-output (SIMO) channel. Surprisingly, when the covariance matrix of the channel satisfies a certain technical condition related to the cardinality of its smallest set of linearly dependent rows, this lower bound reveals that the capacity pre-log in the SIMO case is larger than that in the single-input single-output (SISO) case.
KeywordsFading channels, single-input multiple-output (SIMO), capacity pre-log
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