Title :
A multi-user multi-beam selection scheme based on orthonormal random beamforming for mimo downlink system
Author :
Guo Xiansheng ; Wan Qun ; Huang Anmin ; Bai Danping
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
A new algorithm for fast direction-of-arrivals (DOAs) tracking of multiple scattering sources is presented in this paper. The proposed method is based on total least square-ESPRIT (TLS-ESPRIT) and subspace updating. Compared with the DOAs estimation algorithms for sources without moving, our technique do not need search and it can update the moving scattering sources parameters fast and exactly. In addition, it can be applied to scenarios with multiple scattering sources that may have different angular power densities. The simulation results show the effectiveness of our method.
Keywords :
direction-of-arrival estimation; least squares approximations; DOA estimation algorithm; direction-of-arrival tracking; multiple scattering source; total least square-ESPRIT; Additive noise; Antenna arrays; Approximation algorithms; Direction of arrival estimation; Interchannel interference; Iterative algorithms; Parameter estimation; Robustness; Scattering parameters; Wide area networks;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.4348151
