Analog-digital hybrid eigenmode transmission for massive short-range MIMO

Author

Murata, Kentaro ; Morishita, Hisashi ; Honma, Naoki ; Nishimori, Kentaro ; Klymyshyn, David M.

Author_Institution

Grad. Sch. of Sci. & Eng., Nat. Defense Acad., Yokosuka, Japan

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

223

Lastpage

224

Abstract

This paper proposes an analog-digital hybrid eigenmode transmission technique for massive short-range MIMO, which utilizes both analog and digital beamformings. In this method, first, a channel matrix in a plane-symmetrically configured MIMO array is block-diagonalized by analog beamforming with hybrid couplers. Then, eigenmode transmission is virtually realized by digital beamforming toward each block-diagonalized sub channel matrix. This approach is geometrically realizable and results in a reduction in the required number of calculations.

Keywords

MIMO communication; array signal processing; waveguide couplers; analog beamformings; analog-digital hybrid eigenmode transmission technique; block-diagonalized subchannel matrix; channel matrix; digital beamforming; digital beamformings; eigenmode transmission; hybrid couplers; massive short-range MIMO; plane-symmetrically configured MIMO array; Array signal processing; Arrays; Couplers; Educational institutions; MIMO; Matrix decomposition; Symmetric matrices; massive MIMO; short-range MIMO;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963717

Filename

6963717