A Reduced-Complexity Multiband MIMO Receiver with Estimation of Analog Devices Imperfection

Author

Ohta, Tomoya ; Morikura, Masahiro ; Denno, Satoshi

Author_Institution

Grad. Sch. of Inf., Kyoto Univ., Kyoto, Japan

fYear

2012

fDate

6-9 May 2012

Firstpage

1

Lastpage

5

Abstract

Cognitive radios are of interest because they are capable of high frequency utilization efficiency. Multiband multiple-input multiple-output (MIMO) receivers based on heterodyne reception have been proposed for use in cognitive radios. This paper proposes a reduced-complexity multiband MIMO receiver that can achieve high performance by correcting the imperfection of the Hilbert transformer in the intermediate frequency (IF) band. However, the imperfection of the analog devices in the feedback loop causes poor performance. Therefore, a scheme for correcting the imperfection of the analog devices is proposed.

Keywords

Hilbert transforms; MIMO communication; cognitive radio; communication complexity; estimation theory; feedback; heterodyne detection; radio receivers; Hilbert transformer; IF band; MIMO receivers; analog devices imperfection estimation; cognitive radios; feedback loop; heterodyne reception; high frequency utilization efficiency; intermediate frequency band; multiband multiple-input multiple-output receivers; reduced-complexity multiband MIMO receiver; Baseband; Bit error rate; Estimation; MIMO; Performance evaluation; Receivers; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2012 IEEE 75th

Conference_Location

Yokohama

ISSN

1550-2252

Print_ISBN

978-1-4673-0989-9

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2012.6239940

Filename

6239940