A CDMA communication detector with robust near-far resistance using paralleled array processors

Author

Chen, David Cheng-Hsiung ; Sheu, Bing J. ; Young, Wayne C.

Author_Institution

Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA

Volume

7

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

654

Lastpage

662

Abstract

The code division multiple access (CDMA) scheme has become very popular due to high efficiency for spectrum usage and robust jamming resistance. However, the inherent near-far problem is an impediment. Though deliberate power control algorithms can partially handle this problem, the cost is high. Under the assumption of synchronous symbols and white Gaussian noise, a neural-network-based detector with robust near-far resistance is presented. By proper mapping and applying a hardware annealing technique, compact realization of high precision detectors is possible

Keywords

code division multiple access; interference suppression; land mobile radio; neural nets; parallel architectures; radio receivers; radiofrequency interference; simulated annealing; telecommunication computing; CDMA communication detector; code division multiple access; hardware annealing technique; high precision detectors; neural-network-based detector; paralleled array processors; robust near-far resistance; synchronous symbols; white Gaussian noise; Annealing; Costs; Detectors; Gaussian noise; Hardware; Impedance; Jamming; Multiaccess communication; Noise robustness; Power control;

fLanguage

English

Journal_Title

Circuits and Systems for Video Technology, IEEE Transactions on

Publisher

ieee

ISSN

1051-8215

Type

jour

DOI

10.1109/76.611176

Filename

611176