Title :
Neural networks for PN synchronization and optimal symbol decision in DS/SS indoor communications
Author :
Leung, Shu-hung ; Weng, Jian-feng
Author_Institution :
Dept. of Electron. Eng., City Polytech. of Hong Kong, Kowloon, Hong Kong
Abstract :
An optimal probabilistic decision method is described for symbol detection in DS/SS indoor communications in the presence of uncertain time delay caused by the receiver´s movement and multipath fading. A radial basis function network is introduced to implement the joint PN synchronization and optimal symbol decision together with the estimation of the channel coefficients. The improved performance is demonstrated by computer simulation results and the comparison with the Rake diversity reception is given
Keywords :
decision theory; delays; diversity reception; fading; feedforward neural nets; indoor radio; land mobile radio; multilayer perceptrons; multipath channels; probability; pseudonoise codes; signal detection; spread spectrum communication; synchronisation; DS/SS indoor communications; PN synchronization; Rake diversity reception; channel coefficients estimation; computer simulation results; multipath fading; neural networks; optimal probabilistic decision method; optimal symbol decision; performance; radial basis function network; receiver movement; symbol detection; uncertain time delay; Artificial neural networks; Channel estimation; Computer simulation; Delay effects; Fading; Indoor communication; Intelligent networks; Multiaccess communication; Multipath channels; Neural networks;
Conference_Titel :
Singapore ICCS '94. Conference Proceedings.
Print_ISBN :
0-7803-2046-8
DOI :
10.1109/ICCS.1994.474184
