A new type of multiuser detector for CDMA mobile communication

Author

Yongyu, Chang ; Dacheng, Yang ; Wenbo, Wang

Author_Institution

Beijing Univ. of Posts & Telecommun., China

Volume

4

fYear

2000

fDate

2000

Firstpage

1514

Abstract

A new type of multiuser detector is proposed and the algorithm is derived in this paper. The complexity of this detector is linear to the number of users and the performance is better than the decorrelating detector. The detection delay is smaller than the decision-feedback detector. Numerical results show that the BER of this new type of multiuser detector goes to some value when the multiple access interference (MAI) power is 3 dB higher than the useful signal power, so this detector can resist the near-far effect efficiently for CDMA mobile communication

Keywords

code division multiple access; computational complexity; decorrelation; delays; error statistics; feedback; land mobile radio; multiuser channels; radiofrequency interference; signal detection; BER; CDMA mobile communication; DS-CDMA; MAI power; algorithm; decision-feedback detector; decorrelating detector; detection delay; detector complexity; linear detector; multiple access interference; multiuser detector; near-far effect; performance; useful signal power; Additive white noise; Bit error rate; Decorrelation; Delay; Detectors; Mobile communication; Multiaccess communication; Multiple access interference; Multiuser detection; Symmetric matrices;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd

Conference_Location

Boston, MA

ISSN

1090-3038

Print_ISBN

0-7803-6507-0

Type

conf

DOI

10.1109/VETECF.2000.886085

Filename

886085