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IEICE TRANSACTIONS on Fundamentals

Effect of Delay Spread Enhancement in MIMO Eigenbeam Space Division Multiplexing Transmission

Satoshi TAKAHASHI, Chang-Jun AHN, Hiroshi HARADA, Yukiyoshi KAMIO

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Summary :

MIMO (multiple-input multiple-output) transmission is a promising technology to improve the frequency usage efficiency in mobile radio communications. In this letter, MIMO transmission with eigenbeam space division multiplexing (E-SDM) is focused on and the site-dependent beamforming characteristics is examined to know the transmission characteristics. Site-dependent radiowave direction of arrival and impulse responses are obtained using ray tracing. Result shows that effect of radiowaves with longer delays is enhanced due to E-SDM beamforming, and rather more capability of treating a longer excess delay is necessary for time-domain multipath compensation.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.7 pp.1931-1935
Publication Date
2005/07/01
Publicized
Online ISSN
DOI
10.1093/ietfec/e88-a.7.1931
Type of Manuscript
Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
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