Title :
Blind CDMA receivers using mixed-rate constraints
Author :
Gesbert, David ; Sorelius, Joakim ; Paulraj, Arogyaswami
Author_Institution :
Inf. Syst. Lab., Stanford Univ., CA, USA
Abstract :
This article deals with the problem of blind estimation of linear DS-CDMA receivers using multiple antennas in asynchronous intersymbol interference (ISI) channels. We introduce simple relations existing between receivers at the symbol rate and at the chip rate and derive deterministic constraints that can be used to determine these receivers in a blind manner, with small sample sizes. The chip rate receiver is shown to be close to the MMSE receiver. Connections to existing techniques are discussed.
Keywords :
antenna arrays; blind equalisers; code division multiple access; intersymbol interference; least squares approximations; multiuser channels; parameter estimation; radio receivers; receiving antennas; spread spectrum communication; ISI channels; MMSE receiver; asynchronous intersymbol interference channels; blind CDMA receivers; blind estimation; chip rate receiver; deterministic constraint; equalisers; least-squares approach; linear DS-CDMA receivers; mixed-rate constraints; multiple antennas; small sample sizes; symbol rate; Control systems; Delay estimation; Detectors; Information systems; Laboratories; Multiaccess communication; Multiuser detection; Principal component analysis; Receiving antennas; Sensor arrays;
Conference_Titel :
Signals, Systems & Computers, 1998. Conference Record of the Thirty-Second Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5148-7
DOI :
10.1109/ACSSC.1998.751435
