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

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McKay, Matthew, Smith, Peter J, Suraweera, Himal and Collings, Iain (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. ISSN 0018-9448

Abstract

This paper considers the distribution of the mutual information of frequency-selective spatially-uncorrelated Rayleigh fading MIMO channels. Results are presented for 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 arbitrarylength channels. Simplified expressions are also presented for high and low SNR regimes. The analytical variance results are used to provide accurate analytical approximations for the distribution of the mutual information and the outage capacity.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/3830
DOI 10.1109/TIT.2008.924685
Official URL http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb...
Subjects Historical > Faculty/School/Research Centre/Department > Centre for Telecommunications and Micro-Electronics (CTME)
Historical > FOR Classification > 0906 Electrical and Electronic Engineering
Historical > SEO Classification > 970110 Expanding Knowledge in Technology
Keywords ResPubID16020, multiple-input–multiple-output (MIMO) systems, mutual information, orthogonal frequency-division multiplexing(OFDM)
Citations in Scopus 66 - View on Scopus
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