The SIMO Pre-Log Can Be Larger Than the SISO Pre-Log

Details The SIMO Pre-Log Can Be Larger Than the SISO Pre-Log The SIMO Pre-Log Can Be Larger Than the SISO Pre-Log

2010-04-21

arxiv.org/abs/1004.3755v1

nformation Theory, 2009. ISIT 2009. IEEE International Symposium on , vol., no., pp.2174-2178, June 28 2009-July 3 2009

Computer Science

Information Theory

Scientific paper

10.1109/ISIT.2009.5205806

We 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.

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