Profile image of ahmedmohamed85
Flag of Egypt Cairo, Egypt
Member since January 20, 2012
44 Recommendations


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10 year's experience in digital system design using VHDL and verilog for FPGA's and CPLD's both for Xilinx and Altera Chips. I also have 10 years experience in working with Xilinx Ise form version 6.2 to 14.7 and Altera Quarus 2 for VHDL , verilog, system verilog and ip in addition to experience in Vivado design tool, and HLS and digital design using zynq7000
$50 USD/hr
425 reviews
  • 96%Jobs Completed
  • 95%On Budget
  • 96%On Time
  • 23%Repeat Hire Rate


Recent Reviews

  • image of Cesar M. Project for Ahmed M. €1800.00 EUR

    “Ahmed has completed the job successfully. The delivered code is clear and efficient. I would hire him for a new project.”

  • image of Diana W. VHDL project: Measuring time between two input signals €120.00 EUR

    “Very friendly and competent. The project was completed to my satisfaction.”

  • image of Andres B. VHDL project $250.00 USD

    “Excellent work, on time.”

  • image of Cesar M. Verilog/VHDL blocks for Virtex-7 FPGA €555.00 EUR

    “Ahmed has solid knowledge and he has completed the job quickly and efficiently”

  • image of Thomas K. Create VHDL chess clock £166.00 GBP

    “Great work, kept communication throughout project.”

  • image of Ali R. Need help related to fpga and Vhdl $133.00 AUD

    “Worst experience ever . Don't hire him otherwise you will suffer. Even Don't bother to reply. Don't Care about Your deadline even after giving extra time. After accepting project, he will start find some cheaper freelancer and ask them to work. I can't explain how much i have suffered because of him. Don't trust at him.. Alaass..........!”


Verilog/VHDL/FPGA Expert

Jan 2012

working since 2012 at [login to view URL]

Work experiance

Jul 2007

More than 5 years working in digital system design and Developing a complete VHDL Projects for Converting old digital systems based on TTL technology into small compact unites based on FPGA's.


Bachelor of Electronics Engineering

2002 - 2007 (5 years)


Certificate of merit (2011)

Thales Raytheon Systems

This Certificate has been awarded to me for the VHDL solutions that i had provided during the work in this project.



This work presents the architecture of an optimized complex matrix inversion using GAUSS-JORDAN elimination (

FPGA Implementation Platform for MIMO-OFDM Based on UART

Most hardware designers use Simulink as a design platform because it contains many components that have hardware equivalent. In addition to that, it supports Matlab Co-simulation and hardware synthesis. Simulink is seen as a good platform for low complexity systems that do not require trimming analysis during the verification phase.

Rapid prototyping of MIMO-OFDM based on parity bit selected and permutation spreading

In this paper, a novel transmission scheme is developed to effectively combine permutation spreading technique with MIMO-OFDM to obtain improved bit error rate performance in the presence of frequency selective fading channels with low system complexity.


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