Title :
On the multiuser detection using a Hopfield network in M-ary/SSMA communications
Author :
Nagaosa, T. ; Miyajima, T. ; Hasegawa, T.
Author_Institution :
Dept. of Electron. Eng., Saitama Univ., Urawa, Japan
Abstract :
We propose a detector using a Hopfield (1984) network for multiuser detection in M-ary/SSMA communications. It is shown that the Hopfield network can be used by considering the optimum multiuser detection problem in M-ary/SSMA as an optimization problem. The proposed detector has a simple structure. Firstly, we consider the multiuser detector using a Hopfield network of a discrete model in M-ary/SSMA communications and it is shown by computer simulations that it has better performance in near-far situations than the conventional detectors do. Secondly, we consider the detector using a Hopfield network of a continuous model and it is shown that the performance of the proposed detector is nearly equal to that of the optimum detector
Keywords :
Gaussian channels; Hopfield neural nets; multi-access systems; signal detection; spread spectrum communication; Gaussian channel; Hopfield network; M-ary/SSMA communications; computer simulations; continuous model; discrete model; multiuser detection; near-far situations; optimization problem; optimum multiuser detection problem; performance; Computer simulation; Degradation; Detectors; Electronic mail; Intelligent networks; Matched filters; Multiuser channels; Multiuser detection; Neural networks; Spread spectrum communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.529123
