Title :
Performances of beamforming techniques combined to switching algorithm in multi-user MIMO systems
Author :
Mlayeh, Y. ; Rouissi, F. ; Tlili, F. ; Ghazel, A.
Author_Institution :
CIRTA´´COM Res. Unit, High Sch. of Commun. (SUP´´COM) Tunis, Tunis, Tunisia
Abstract :
This paper presents a study of switching algorithm performances when combined to several beamforming techniques in a multi-user MIMO communication system. The study of three beamforming solutions shows that the beamforming processing has an important influence in the decision criterion of the switching algorithm. The STBC adaptive beamforming, which is better than Zero forcing (ZF) and Singular Value Decomposition (SVD) processing, leads to satisfactory improvement in Bit error Rate (BER) in comparison with MIMO diversity and spatial multiplexing when applied separately.
Keywords :
MIMO communication; array signal processing; diversity reception; error statistics; singular value decomposition; MIMO diversity; STBC adaptive beamforming; beamforming processing; beamforming techniques; bit error rate; decision criterion; multiuser MIMO communication system; singular value decomposition; spatial multiplexing; switching algorithm; zero forcing; Array signal processing; Bit error rate; Communication switching; Communications technology; Diversity reception; Downlink; Interference; MIMO; Signal processing algorithms; Transmitters;
Conference_Titel :
Communications, Control and Signal Processing (ISCCSP), 2010 4th International Symposium on
Conference_Location :
Limassol
Print_ISBN :
978-1-4244-6285-8
DOI :
10.1109/ISCCSP.2010.5463395
