A novel blind space-time multiuser detector

Author

Wang, Ling ; Lichen Jiao ; Liu, Fang

Author_Institution

Key Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China

Volume

1

fYear

2002

fDate

26-30 Aug. 2002

Firstpage

13

Abstract

Multiple access interference (MAI) is a key problem in DS-CDMA systems. Both multiuser detectors and array antennas have been introduced to reduce the effect of MAI. Many existing multiuser detectors require so many system parameters and their adaptive versions require a training sequence. These parameters are difficult to obtain in multipath fading channels. A novel blind space-time multiuser detector based on the Kalman filter is proposed. With numerical simulations and performance analysis, it is shown that the detector is ahead of other existing detectors in eliminating MAI and near-far resistance. Furthermore, it can converge rapidly.

Keywords

Kalman filters; adaptive signal detection; array signal processing; code division multiple access; fading channels; multipath channels; multiuser detection; radiofrequency interference; spread spectrum communication; DS-CDMA; Kalman filter; adaptive detectors; array antennas; blind detector; fading channels; multipath channels; multiple access interference; multiuser detector; near-far resistance; space-time detector; Adaptive arrays; Adaptive signal detection; Antenna arrays; Detectors; Multiaccess communication; Multiple access interference; Radar detection; Receiving antennas; Sensor arrays; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2002 6th International Conference on

Print_ISBN

0-7803-7488-6

Type

conf

DOI

10.1109/ICOSP.2002.1180971

Filename

1180971