Title :
A new CDMA multiuser detector with MAI resistance
Author :
Jing, Han ; Baoyu, Zheng
Author_Institution :
Nanjing Univ. of Posts & Telecommun., China
Abstract :
In this paper we present a new MAI (multiple access interference) resistant CDMA multiuser detector based on digital signal processing (DSP) and a neural network (NN). Using a proper relationship between the objective function of the optimization problem and the energy function of the NN together with hardware annealing and a DSP preprocessing stage, this detector exhibits a number of attractive properties: low complexity, low computational cost, MAI resistance, and near-far resistance
Keywords :
code division multiple access; computational complexity; interference suppression; neural nets; optimisation; radiofrequency interference; signal detection; CDMA multiuser detector; DSP; DSP preprocessing stage; MAI resistance; digital signal processing; energy function; hardware annealing; low computational cost; multiple access interference; near-far resistance; neural network; objective function; optimization problem; Annealing; Cellular neural networks; Computational efficiency; Detectors; Digital signal processing; Hopfield neural networks; Multiaccess communication; Multiple access interference; Multiuser detection; Neural networks;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770933
