Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944827
