Title :
On the performance of multisensor reception in CDMA by fast independent component analysis
Author :
Ristaniemi, Tapani ; Wu, Rui
Author_Institution :
Dept. of Math. Inf. Technol., Jyvaskyla Univ., Finland
Abstract :
We consider multisensor multiuser reception in a DS- CDMA system with a block fading channel. Especially, the use of a statistical technique called independent component analysis (ICA) as a post-processing tool for conventional array receivers is studied. By utilizing higher order statistics, ICA is used to find the multisensor multiuser receiver, in which the unknown variables, direction-of-arrival and chip timing, are implicitly estimated. The performance of such a receiver is discussed and compared to some existing ones
Keywords :
array signal processing; cellular radio; code division multiple access; direction-of-arrival estimation; diversity reception; fading channels; higher order statistics; multiuser channels; radio receivers; signal detection; DS-CDMA; ICA; IMT-2000; UMTS; antenna array; array receivers; block fading channel; chip timing estimation; direction-of-arrival estimation; fast independent component analysis; higher order statistics; multisensor reception; multiuser reception; post-processing tool; spatial diversity; Fading; Higher order statistics; Independent component analysis; Information technology; Interference; Multiaccess communication; Multiuser detection; Random variables; Receiving antennas; Timing;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945010
