Title :
Eigenvalue-decomposition-based recursive least-squares algorithm for OFDM communications over fast time-varying channels
Author :
Wijesena, Pubudu Sampath ; Taniguchi, Tetsuki ; Karasawa, Yoshio
Author_Institution :
Univ. of Electro-Commun., Tokyo, Japan
Abstract :
A beamforming algorithm with a fast convergence rate, which can be applicable to an OFDM communication system,. has been proposed and the performance of the proposed scheme has been evaluated by a computer simulation. We can gain an essential convergence in the seventh step in a 16-element array configuration, in an environment with -10 dB of SNR and 10 dB interference signal power.
Keywords :
OFDM modulation; antenna arrays; array signal processing; convergence of numerical methods; eigenvalues and eigenfunctions; least squares approximations; recursive estimation; time-varying channels; 16-element array configuration; OFDM communications; beamforming algorithm; convergence rate; eigenvalue decomposition; fast time-varying channels; performance; recursive least-squares algorithm; Adaptive arrays; Convergence; Eigenvalues and eigenfunctions; Interference; Matrix decomposition; Mobile communication; OFDM; Resonance light scattering; System performance; Time-varying channels;
Conference_Titel :
Wireless Communication Technology, 2003. IEEE Topical Conference on
Print_ISBN :
0-7803-8196-3
DOI :
10.1109/WCT.2003.1321579
