Title :
Application of lattice algorithm for adaptive antennas
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
An adaptive antenna based on the lattice algorithm is presented. The important feature of this algorithm is that it has a fast convergence compared with the performance of LMS applied in adaptive beamforming. Therefore, it can be used in received signal processing for an adaptive antenna array especially under multi-interference. A WCDMA uplink model is used to derive and simulate the antenna weights computation and performance. Results and performances of LMS and lattice least squares applied in adaptive antennas are presented and compared. The simulation results all show that this algorithm has good performance.
Keywords :
adaptive antenna arrays; adaptive signal processing; antenna radiation patterns; broadband networks; cochannel interference; code division multiple access; convergence of numerical methods; interference suppression; lattice theory; least mean squares methods; mobile radio; LMS; WCDMA uplink model; adaptive antenna arrays; adaptive beamforming; antenna array models; antenna weights; co-channel interference; convergence; lattice algorithm; lattice least squares; multi-user interference; received signal processing; wideband CDMA system; Adaptive arrays; Adaptive signal processing; Antenna arrays; Array signal processing; Computational modeling; Convergence; Lattices; Least squares approximation; Receiving antennas; Signal processing algorithms;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016732
