Title :
Improved iterative least squares RAKE-combiner using beamspace transformations
Author :
Pelin, Per ; Eriksson, Jonny ; Ranheim, Anders
Author_Institution :
Dept. of Appl. Electron., Chalmers Univ. of Technol., Goteborg, Sweden
Abstract :
Antenna arrays can be used in mobile communication systems to increase capacity and performance. However, as the number of antenna elements grows, the computational burden increases significantly. To reduce the total computational cost, a beamspace transformation is derived, based on the statistical model of the array signal. Although the transformation derived here is applicable to many algorithms, it is matched to the decoupled weighted iterative least squares with projections RAKE-combiner algorithm. Not only is the computational cost reduced, the overall performance is improved by using an appropriate beamspace transformation
Keywords :
antenna arrays; array signal processing; channel capacity; direction-of-arrival estimation; iterative methods; land mobile radio; least squares approximations; recursive estimation; statistical analysis; antenna arrays; antenna elements; array signal; beamspace transformations; computational cost reduction; decoupled weighted iterative least squares; iterative least squares RAKE-combiner; mobile communication systems; performance; projections; statistical model; system capacity; Antenna arrays; Antenna measurements; Base stations; Electrostatic precipitators; Filters; Iterative algorithms; Least squares methods; Mobile antennas; Mobile communication; Noise measurement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.604830
