Title :
Analysis Of The Impact of Channel Estimation Errors on the Decomposition of Multiuser Mimo Channels
Author :
Tejera, Pedro ; Utschick, Wolfgang ; Bauch, Gerhard ; Nossek, Josef A.
Author_Institution :
Inst. for Circuit Theory & Signal Process., Munich Technol. Univ.
Abstract :
In the work at hand a general procedure to analyze the impact of channel estimation errors on the performance of decomposition techniques for multiuser MIMO channels is presented. In particular, this procedure is applied to a decomposition technique called cooperative zero-forcing with successive encoding and successive allocation method (CZF-SESAM). Based on the resulting analytical expressions the transmitter is able to adjust bit and power loading so that in spite of estimation errors transmission quality requirements can still be met
Keywords :
MIMO systems; channel allocation; channel coding; channel estimation; multiuser channels; bit loading; channel estimation errors; cooperative zero-forcing; multiple input multiple output systems; multiuser MIMO channel decomposition; power loading; successive encoding and successive allocation method; Channel estimation; Downlink; Error analysis; Estimation error; MIMO; Matrix decomposition; Performance analysis; Signal processing algorithms; Transmitters; Transmitting antennas;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660898
