January 2012

High speed performance of semiconductor electrooptic modulators for multi Gigahertz communication systems operation

  The effects of electrodes geometry and temperature on high frequency radio frequency transmission characteristics are deeply investigated against semiconductor material based electro optic modulator devices such as aluminum gallium arsenide (AlGaAs) and optical waveguide parameters. On the other hand, we have developed the optimization of the electro-optic modulator parameters where the effective index plays...

Author(s):   Abd El–Naser A. Mohamed, Ahmed Nabih Zaki Rashed, Mohammed A. Metwae&#;e and Amira I. M. Bendary

January 2012

Digital very-large-scale integration (VLSI) Hopfield neural network implementation on field programmable gate arrays (FPGA) for solving constraint satisfaction problems

  This paper discusses the implementation of Hopfield neural networks for solving constraint satisfaction problems using field programmable gate arrays (FPGAs). It discusses techniques for formulating such problems as discrete neural networks, and then it describes the N-Queen problem using this formulation. Finally results will be presented which compare the computation times for the custom computer against...

Author(s): A. Srinivasulu