Title :
Hyperbolic Tangent HNN Multiuser Detection in DS-UWB Systems
Author :
Cheng, Chia-Hsin ; Wen, Guo-jun ; Hsu, Ling-Cheng ; Huang, Yung-Fa
Author_Institution :
Dept. of Electr. Eng., Nat. Formosa Univ. of Technol., Yunlin, Taiwan
Abstract :
This paper proposes that the Hopfield neural network (HNN) with hyperbolic tangent activation is introduced and applied to multiuser detection in direct sequence-ultra-wideband (DS-UWB) systems. It can approximate to maximum likelihood (ML) detector by mathematical analysis. The HNN with hyperbolic tangent activation (tanhHNN) can enhance the performance of HNN detector. According to the HNN technology, the computer simulation results show that they have good performances and much lower computational complexity in a multiuser environment.
Keywords :
Hopfield neural nets; approximation theory; maximum likelihood detection; multiuser detection; telecommunication computing; ultra wideband communication; DS-UWB system; Hopfield neural network; direct sequence-ultra-wideband system; hyperbolic tangent HNN multiuser detection; hyperbolic tangent activation; mathematical analysis; maximum likelihood detection approximation; Chaotic communication; Computational complexity; Detectors; Hopfield neural networks; Maximum likelihood detection; Maximum likelihood estimation; Multiuser detection; Neural networks; Paper technology; Wireless communication; Hopfield and hyperbolic tangent; Maximum likelihood; Neural network;
Conference_Titel :
Hybrid Intelligent Systems, 2009. HIS '09. Ninth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
978-0-7695-3745-0
DOI :
10.1109/HIS.2009.228
