Spatial Multipath Resolution for MIMO Systems

Author

Senaratne, Damith ; Tellambura, Chintha

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada

Volume

1

Issue

1

fYear

2012

fDate

2/1/2012 12:00:00 AM

Firstpage

10

Lastpage

13

Abstract

Wireless multiple-input multiple-output (MIMO) terminals with a large number of antennas are becoming a reality, increasing the spatial spatial degree of freedoms (DoFs) available at the terminals. This paper proposes exploiting the excess spatial DoFs available at the receiver for spatial multipath resolution. A rake-receiver structure, whose fingers are implemented through spatial signal processing, is introduced for that. The joint computation of beamforming matrices for the transmitter and each receiver finger to achieve single-carrier eigenmode transmission over a multipath MIMO channel is developed. Numerical results on the error performance are provided for a practical multipath MIMO channel based on the IEEE 802.15.3c NLOS (CM4) model.

Keywords

MIMO communication; array signal processing; eigenvalues and eigenfunctions; matrix algebra; multipath channels; radio receivers; radio transmitters; signal resolution; DoF; IEEE 802.15.3c NLOS (CM4) model; beamforming matrices; degree of freedom; eigenmode transmission; multipath MIMO channel; multiple input multiple output; rake receiver; spatial multipath resolution; spatial signal processing; transmitter; Array signal processing; Fading; MIMO; OFDM; Receiving antennas; Spatial resolution; MIMO; frequency selective fading; rake receiver; resolving multipaths;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/WCL.2011.111211.110064

Filename

6081839