Title :
Combined Eigen-beamforming and Power Allocation for Spatial Multiplexing over Correlated Channels
Author :
Wang, Wei ; Jin, Ronghong ; Jiaqiang Li ; Geng, Junping ; Jiang, Dongyu
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ.
Abstract :
In this paper, an eigen-beamforming (E-BF) technology combined with power allocation is proposed to improve the performance of spatial multiplexing (SM) system in the presence of spatial fading correlation. This hybrid scheme requires only knowledge of the transmit correlation matrix and does not necessitate frequent updates. A simple closed-form expression for power allocation is derived. Simulations demonstrate the effectiveness of the proposed method
Keywords :
correlation methods; eigenvalues and eigenfunctions; fading channels; matrix algebra; multiplexing; channel correlation; closed-form expression; correlation matrix transmission; eigen-beamforming; power allocation; spatial fading correlation; spatial multiplexing system; Closed-form solution; Covariance matrix; Eigenvalues and eigenfunctions; Fading; MIMO; Matrix decomposition; Power engineering and energy; Samarium; Signal design; Transmitters;
Conference_Titel :
Communications, 2006. APCC '06. Asia-Pacific Conference on
Conference_Location :
Busan
Print_ISBN :
1-4244-0574-2
Electronic_ISBN :
1-4244-0574-2
DOI :
10.1109/APCC.2006.255953
