On the Mutual Information Distribution of OFDM-Based Spatial Multiplexing: Exact Variance and Outage Approximation

dc.contributor.authorMcKay, M.R.
dc.contributor.authorSmith, P.J.
dc.contributor.authorSuraweera, H.A.
dc.contributor.authorCollings, I.B.
dc.date.accessioned2008-12-15T22:41:49Z
dc.date.available2008-12-15T22:41:49Z
dc.date.issued2008en
dc.description.abstractThis communication considers the distribution of the mutual information of frequency-selective spatially uncorrelated Rayleigh fading multiple-input–multiple-output (MIMO) channels. Results are presented for orthogonal frequency-division multiplexing (OFDM)-based spatial multiplexing. New exact closed-form expressions are derived for the variance of the mutual information. In contrast to previous results, our new expressions apply for systems with both arbitrary numbers of antennas and arbitrary-length channels. Simplified expressions are also presented for high and low signal-to-noise ratio (SNR) regimes. The analytical variance results are used to provide accurate analytical approximations for the distribution of the mutual information, and the outage capacity.en
dc.identifier.citationMcKay, M. R., Smith, P. J., Suraweera, H. A., Collings, I. B. (2008) On the Mutual Information Distribution of OFDM-Based Spatial Multiplexing: Exact Variance and Outage Approximation. IEEE Transactions on Information Theory, 54(7), pp. 3260-3278.en
dc.identifier.doihttps://doi.org/10.1109/TIT.2008.924685
dc.identifier.urihttp://hdl.handle.net/10092/1947
dc.language.isoen
dc.publisherUniversity of Canterbury. Electrical and Computer Engineering.en
dc.rights©2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en
dc.rights.urihttps://hdl.handle.net/10092/17651en
dc.subjectmultiple-input-multiple-output (MIMO) systemsen
dc.subjectmutual informationen
dc.subjectorthogonal frequency-division multiplexing (OFDM)en
dc.subject.marsdenFields of Research::290000 Engineering and Technology::291700 Communications Technologies::291703 Digital systemsen
dc.subject.marsdenFields of Research::290000 Engineering and Technology::291700 Communications Technologies::291710 Radio communications and broadcasting not elsewhere classifieden
dc.titleOn the Mutual Information Distribution of OFDM-Based Spatial Multiplexing: Exact Variance and Outage Approximationen
dc.typeJournal Article
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