Blind multiuser detection based on Improved Infomax and FastICA

Author

Xuxiu, Zhang ; Tianshuang, Qiu

Author_Institution

Sch. of Electr. & Inf., Dalian Jiaotong Univ., Dalian, China

Volume

3

fYear

2010

fDate

27-29 March 2010

Firstpage

476

Lastpage

479

Abstract

The capability of CDMA system is restricted by MAI and Near-far effect problems. Two blind multi-user detector algorithms based on Improved-Infomax and FastICA are proposed and compared in the paper, which could detect target user effectively. These two detectors solve the order indeterminacy of ICA problem by initiating the demix vector with the target user´s spreading codes sequence. Simulation results show that new detectors have good performances in BER(bit error rate), convergence speed and user capability by comparing with traditional method.

Keywords

code division multiple access; independent component analysis; telecommunication computing; user interfaces; CDMA system; FastICA; Infomax; bit error rate; blind multiuser detection; code division multiple access; demix vector; independent component analysis; multiple-access-interference; near-far effect problems; user spreading codes sequence; Detectors; Error analysis; Independent component analysis; Interference suppression; Multiaccess communication; Multiple access interference; Multiuser detection; Signal processing algorithms; Spread spectrum communication; Uncertainty; FastICA; Infomax; Multi- access interference; Multi-user detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Computer Control (ICACC), 2010 2nd International Conference on

Conference_Location

Shenyang

Print_ISBN

978-1-4244-5845-5

Type

conf

DOI

10.1109/ICACC.2010.5486813

Filename

5486813