2.50
Hdl Handle:
http://hdl.handle.net/10547/270646
Title:
Severely fading MIMO channels: models and mutual information
Authors:
Choi, Seung Ho; Smith, Peter; Allen, Ben; Malik, Wasim Q.; Shafi, M.
Abstract:
In most wireless communications research, the channel models considered experience less severe fading than the classic Rayleigh fading case. In this work, however, we investigate MIMO channels where the fading is more severe. In these environments, we show that the coefficient of variation of the channel amplitudes is a good predictor of the link mutual information, for a variety of models. We propose a novel channel model for severely fading channels based on the complex multivariate t distribution. For this model, we are able to compute exact results for the ergodic mutual information and approximations to the outage probabilities for the mutual information. Applications of this work include wireless sensors, RF tagging, land-mobile, indoor-mobile, ground-penetrating radar, and ionospheric radio links. Finally, we point out that the methodology can also be extended to evaluate the mutual information of a cellular MIMO link and the performance of various MIMO receivers in a cellular scenario. In these cellular applications, the channel itself is not severely fading but the multivariate t distribution can be applied to model the effects of inter-cell interference.
Citation:
Seung Ho Choi; Smith, P.; Allen, B.; Malik, W.Q.; Shah, M.; , "Severely Fading MIMO Channels: Models and Mutual Information," Communications, 2007. ICC '07. IEEE International Conference on , vol., no., pp.4628-4633, 24-28 June 2007 doi: 10.1109/ICC.2007.764
Publisher:
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date:
Jun-2007
URI:
http://hdl.handle.net/10547/270646
DOI:
10.1109/ICC.2007.764
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4289435
Type:
Conference papers, meetings and proceedings
Language:
en
ISBN:
1424403537
Appears in Collections:
Centre for Wireless Research (CWR)

Full metadata record

DC FieldValue Language
dc.contributor.authorChoi, Seung Hoen_GB
dc.contributor.authorSmith, Peteren_GB
dc.contributor.authorAllen, Benen_GB
dc.contributor.authorMalik, Wasim Q.en_GB
dc.contributor.authorShafi, M.en_GB
dc.date.accessioned2013-02-28T15:01:03Z-
dc.date.available2013-02-28T15:01:03Z-
dc.date.issued2007-06-
dc.identifier.citationSeung Ho Choi; Smith, P.; Allen, B.; Malik, W.Q.; Shah, M.; , "Severely Fading MIMO Channels: Models and Mutual Information," Communications, 2007. ICC '07. IEEE International Conference on , vol., no., pp.4628-4633, 24-28 June 2007 doi: 10.1109/ICC.2007.764en_GB
dc.identifier.isbn1424403537-
dc.identifier.doi10.1109/ICC.2007.764-
dc.identifier.urihttp://hdl.handle.net/10547/270646-
dc.description.abstractIn most wireless communications research, the channel models considered experience less severe fading than the classic Rayleigh fading case. In this work, however, we investigate MIMO channels where the fading is more severe. In these environments, we show that the coefficient of variation of the channel amplitudes is a good predictor of the link mutual information, for a variety of models. We propose a novel channel model for severely fading channels based on the complex multivariate t distribution. For this model, we are able to compute exact results for the ergodic mutual information and approximations to the outage probabilities for the mutual information. Applications of this work include wireless sensors, RF tagging, land-mobile, indoor-mobile, ground-penetrating radar, and ionospheric radio links. Finally, we point out that the methodology can also be extended to evaluate the mutual information of a cellular MIMO link and the performance of various MIMO receivers in a cellular scenario. In these cellular applications, the channel itself is not severely fading but the multivariate t distribution can be applied to model the effects of inter-cell interference.en_GB
dc.language.isoenen
dc.publisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCen_GB
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4289435en_GB
dc.titleSeverely fading MIMO channels: models and mutual informationen
dc.typeConference papers, meetings and proceedingsen
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