Title :
On the performance of Eigen based Beamforming in LTE-Advanced
Author :
Chunchang, Tian ; Wenqian, Yang ; Liang, Fang ; ZhiJie, Wang ; Yafeng, Wang
Author_Institution :
Wireless Res. Center, Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
For the channel reciprocity property, Eigen-based Beamforming (EBB) has been attracting more and more attentions in LTE-Advanced system. In this paper, single user beamforming with rank adaptation and multi-user beamforming using block diagonal algorithm are studied to make full use of the spatial multiplexing gain. In addition, power control and power allocation are discussed to improve the performance. At last, a novel smart power allocation and power control scheme had been proposed for multi-user beamforming usage. The simulation results showed that the proposed schemes have got significant gain over traditional methods. All the results are provided using dynamic system level simulator based on LTE-Advanced.
Keywords :
3G mobile communication; eigenvalues and eigenfunctions; power control; telecommunication congestion control; LTE-advanced system; block diagonal algorithm; channel reciprocity property; dynamic system level simulator; eigen based beamforming; multiuser beamforming; power control scheme; rank adaptation; single user beamforming; smart power allocation; spatial multiplexing gain; Array signal processing; Bit rate; Channel capacity; Downlink; Interference; Polarization; Power control; Power system modeling; Quality of service; Singular value decomposition; EBB; LTE-Advanced; Multi-user Beamforming; block diagonal; fairness; power allocation; power control; rank adaptation;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450334
