Title :
Comparative study of LMS and RLS adaptive algorithms in the optimum combining of uplink W-CDMA
Author :
Martínez, Ramón ; Cacho, Augusto Del ; De Haro, Leandro ; Calvo, Miguel
Author_Institution :
Grupo de Radiacion, Polytech. Univ. of Madrid, Spain
Abstract :
The performance of LMS and RLS adaptive algorithms for optimum combining applied to the reverse link of W-CDMA is studied in terms of SINR and computational load. Results are shown for different antenna array configurations in the base station site (number and separation between antenna elements, individual radiation patterns) and system scenarios (number and azimuthal distribution of users). Special emphasis is made on the antenna structure, and on the algorithm complexity, practical implementation and performance.
Keywords :
3G mobile communication; adaptive antenna arrays; adaptive signal processing; antenna radiation patterns; array signal processing; cellular radio; code division multiple access; computational complexity; diversity reception; least mean squares methods; 3G cellular mobile communications systems; LMS algorithms; RLS algorithms; SINR; W-CDMA uplink; adaptive algorithms; antenna array; antenna structure; complexity; computational load; least mean squares; optimum combining; radiation patterns; recursive least squares; smart antenna; Adaptive algorithm; Adaptive arrays; Antenna arrays; Array signal processing; Base stations; Interference; Least squares approximation; Multiaccess communication; Resonance light scattering; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040622
