Real-time implementation of MMSE adaptive beamformer using modified systolic array

Author

Park, Jae Joon ; Oh, Hyun Seo ; Kyeong, Mun Geon

Author_Institution

Radio & Broadcasting Technol. Lab., ETRI, Taejon, South Korea

Volume

1

fYear

2001

fDate

2001

Firstpage

180

Abstract

This paper presents a modified form of systolic array based on extended QR-recursive least squares (QR-RLS) algorithm for solving covariance inversion routine applied to space-time (S-T) array receiver. For reducing the cycle time of the covariance inversion routine, we propose a modified systolic array suitable for multi-DSP parallel processing. An optimum minimum mean square error (MMSE) adaptive weight calculation algorithm for reverse link beamforming is considered taking account of real-time processing requirements

Keywords

array signal processing; covariance analysis; digital signal processing chips; land mobile radio; least mean squares methods; parallel algorithms; radio links; real-time systems; systolic arrays; 3G WCDMA wireless mobile radios; MMSE adaptive beamformer; MMSE adaptive weight calculation algorithm; QR-RLS algorithm; covariance inversion routine; cycle time reduction; extended QR-recursive least squares algorithm; minimum mean square error; modified systolic array; multi-DSP parallel processing; real-time implementation; real-time processing; reverse link beamforming; space-time array receiver; Adaptive arrays; Array signal processing; Delay effects; Integrated circuit interconnections; Pipeline processing; Process design; Signal processing algorithms; Space technology; Systolic arrays; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944827

Filename

944827