Title :
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
fDate :
8/1/1997 12:00:00 AM
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;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
