Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886085
