Characterization of MIMO channel capacity in urban microcellular environment

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Abouda, Abdulla A.
dc.date.accessioned 2012-02-24T08:15:57Z
dc.date.available 2012-02-24T08:15:57Z
dc.date.issued 2007-04-24
dc.identifier.isbn 978-951-22-8718-5
dc.identifier.issn 0356-5087
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/2858
dc.description.abstract The research work in this thesis consists of several investigations of multiple-input multiple-output (MIMO) wireless channel capacity in urban microcellular environment. The investigations can be categorized into three groups, 1)- model-based investigations, 2)- measurement-based investigations, and 3)- theoretical investigations. Utilizing three dimensional (3D) channel models the influence of environment physical parameters and antenna array configuration on MIMO channel capacity are investigated. In terms of environment influence, parameters such as street width, wall relative permittivity and multipath richness are considered. In terms of antenna array configuration, the effect of array geometry and uniform linear array (ULA) azimuthal orientation are considered. It is shown that the effect of these parameters on MIMO channel capacity is significant. Based on field measurements, the effect of spatial smoothing on the accuracy of a widely used stochastic narrowband MIMO radio channel model, namely, the Kronecker model, and the impact of temporal signal to noise ratio (SNR) variations on MIMO channel capacity are investigated. Results from non-line of sight (NLOS) and line of sight (LOS) propagation scenarios are analyzed. While under NLOS conditions spatial smoothing significantly enhances the applicability of the Kronecker structure, under LOS conditions spatial smoothing does not help to improve the accuracy of the Kronecker model. It is also noticed that while the temporal SNR variation has significant impact on the capacity of MIMO wireless channel in a NLOS propagation scenario, the influence is smaller under LOS conditions. Theoretical investigation of antenna mutual coupling (MC) on the capacity of MIMO wireless channels is presented with particular emphasis on the case of high SNR scenario. It is shown that the effect of MC on MIMO channel capacity can be positive or negative depending on the spatial correlation properties of the propagation environment and the characteristics of the two ends MC matrices. The impact of phase noise (PN) on the accuracy of measured MIMO channel capacity is studied by considering its effect on both the spatial multiplexing gain and the power gain. It is shown that in the case of a low rank physical channel matrix the PN impact is more pronounced on the spatial multiplexing gain than on the power gain. Based on that an eigenvalue filtering (EVF) technique is proposed to improve the accuracy of the measured MIMO channel capacity. en
dc.format.extent 39, [68]
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartofseries Technical report / Helsinki University of Technology, Communications Laboratory. T en
dc.relation.ispartofseries 55 en
dc.relation.haspart Abdulla A. Abouda, H.M. El-Sallabi, Lasse Vuokko and S.G. Häggman, Impact of Temporal SNR Variation on MIMO Channel Capacity in Urban Microcells, in Proceedings of the 9th International Symposium on Wireless Personal Multimedia Communications, WPMC 2006, pp. 341-344, Sep. 2006, San Diego, CA, USA. [article1.pdf] © 2006 WPMC. By permission.
dc.relation.haspart Abdulla A. Abouda, H.M. El-Sallabi and S.G. Häggman, Reducing Impact of Phase Noise on Accuracy of Measured MIMO Channel Capacity, IEEE Antennas and Wireless Propagation Letters, to appear. [article2.pdf] © 2007 IEEE. By permission.
dc.relation.haspart Abdulla A. Abouda, H.M. El-Sallabi, Lasse Vuokko and S.G. Häggman, Spatial Smoothing Effect on Kronecker MIMO Channel Model in Urban Microcells, Journal of Electromagnetic Waves and Applications, vol. 21, no. 5, pp. 681-696, 2007. [article3.pdf] © 2007 Brill Academic Publishers. By permission.
dc.relation.haspart Abdulla A. Abouda, N.G. Tarhuni and H.M. El-Sallabi, Model-Based Investigation on MIMO Channel Capacity in Main Street of Urban Microcells, in Proceedings of the 2005 IEEE International Symposium on Antennas and Propagation, AP-S 2005, vol. 2A, pp. 313-316, Jul. 2005, Washington, DC, USA. [article4.pdf] © 2005 IEEE. By permission.
dc.relation.haspart Abdulla A. Abouda, H.M. El-Sallabi and S.G. Häggman, Effect of Antenna Array Geometry and ULA Azimuthal Orientation on MIMO Channel Properties in Urban City Street Grid, Progress In Electromagnetics Research, PIER 64, pp. 257-278, 2006. [article5.pdf] © 2006 EMW Publishing. By permission.
dc.relation.haspart Abdulla A. Abouda and S.G. Häggman, Effect of Mutual Coupling on Capacity of MIMO Wireless Channels in High SNR Scenario, Progress In Electromagnetics Research, PIER 65, pp. 27-40, 2006. [article6.pdf] © 2006 EMW Publishing. By permission.
dc.relation.haspart Abdulla A. Abouda, H.M. El-Sallabi and S.G. Häggman, Effect of Mutual Coupling on BER Performance of Alamouti Scheme, in Proceedings of the 2006 IEEE International Symposium on Antennas and Propagation, AP-S 2006, pp. 4797-4800, Jul. 2006, New Mexico, USA. [article7.pdf] © 2006 IEEE. By permission.
dc.subject.other Electrical engineering en
dc.title Characterization of MIMO channel capacity in urban microcellular environment en
dc.type G5 Artikkeliväitöskirja fi
dc.description.version reviewed en
dc.contributor.department Department of Electrical and Communications Engineering en
dc.contributor.department Sähkö- ja tietoliikennetekniikan osasto fi
dc.subject.keyword MIMO systems en
dc.subject.keyword channel capacity en
dc.subject.keyword mutual coupling en
dc.subject.keyword phase noise en
dc.subject.keyword array geometry en
dc.subject.keyword Kronecker model en
dc.identifier.urn urn:nbn:fi:tkk-009168
dc.type.dcmitype text en
dc.type.ontasot Väitöskirja (artikkeli) fi
dc.type.ontasot Doctoral dissertation (article-based) en
dc.contributor.lab Communications Laboratory en
dc.contributor.lab Tietoliikennelaboratorio fi


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