DocumentCode :
3248827
Title :
Blind multi-user receiver for MIMO-OFDM systems
Author :
Abrudan, T.A. ; Sirbu, Marius ; Koivunen, Visa
Author_Institution :
Signal Process. Lab., Helsinki Univ. of Technol., Espoo, Finland
fYear :
2003
fDate :
15-18 June 2003
Firstpage :
363
Lastpage :
367
Abstract :
This paper addresses the problem of blind multiuser equalization for OFDM. A vector constant modulus algorithm (VCMA) is developed for a specific multiple input-multiple output (MIMO) system. The proposed algorithm relies on a combined criterion, to cancel both intersymbol interference (ISI) and interuser interference (IUI). ISI is minimized by using a constant mean block energy criterion, while IUI is reduced by using a decorrelation criterion. Reliable performance is achieved with relatively fast convergence and small steady-state error, as well as low computational complexity.
Keywords :
MIMO systems; OFDM modulation; adjacent channel interference; blind equalisers; convergence of numerical methods; decorrelation; interference suppression; intersymbol interference; multiuser detection; radio receivers; ISI; IUI; MIMO-OFDM systems; blind multiuser equalization; computational complexity; constant mean block energy criterion; convergence; decorrelation criterion; interference cancellation; intersymbol interference; interuser interference; multiple input-multiple output system; reliable performance; steady-state error; vector constant modulus algorithm; Blind equalizers; Convergence; Decorrelation; Delay; Intersymbol interference; Laboratories; MIMO; OFDM modulation; Receiving antennas; Signal processing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on
Print_ISBN :
0-7803-7858-X
Type :
conf
DOI :
10.1109/SPAWC.2003.1318983
Filename :
1318983
Link To Document :
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