Objective   Education   Honor   Papers   Thesis    Projects  Experience   working   skills

Birth date: August/07/1980

 Email: vafa_sedghi@yahoo.com        

 Phone: +98-9122975062  

Objectives and Major Interests:

Pursuing graduate studies in Electrical Engineering field with special interests in

Digital Wireless Communication, Microwave and MMIC Design, Circuit Design for Wireless Communication Networks, Data Communication

Education:

 M.S. in Communication branch, Electrical Engineering Dept, Tehran Polytechnic (Amir kabir)  University of Technology, Tehran, Iran, Winter 2005,   Total GPA 16.9//20

 B.Sc. in Electrical Engineering, Sharif University of Technology, Tehran, IRAN. 1998-Summer 2002

High School Diploma, Iranian Center for Education of Exceptional Talents, Total GPA 19.02/20

Published Papers:

Mostafa Borhani, Vafa Sedghi, "A New Subband Adaptive Wireless Channel Equalizer", 8 th European Conference on Wireless Technology 2005, Paris, October 2005, 89-92

Mostafa Borhani, Vafa Sedghi, "A New Wireless Channel Estimator with Low Computational Complexity", 8 th European Conference on Wireless Technology 2005, Paris, October 2005, 343-346

Mostafa Borhani, Vafa Sedghi, Mohammad Mahdi Nayebi, “A New Technique in Passive Coherent Radar Signal Processing”, 2 nd European Radar Conference 2005, Paris, October 2005, 149-152

Mostafa Borhani, Vafa Sedghi, "Distributed Recovery Units for Demodulation in Wireless Sensor Networks", 1st International Conference on Distributed Computing in Sensor Systems, DCOSS 2005 , June 30 - July 1, 2005, Marina del Rey Marriott

Mostafa Borhani, Vafa Sedghi, "An Acoustic Echo Canceller Chip", The 5th International Workshop System-on-Chip for Real-Time Applications, IWSOC'05, July 20 - July 24, 2005, Banff, Alberta – Canada

 V. Sedghi, A. Abdipour, A. Mohammadi, “ Noise Performance Improvement of mm-wave Image Rejection Mixer” APMC 2004,India

V. Sedghi, A. Abdipour, A. Mohammadi, “Signal and  Noise Performance of a subharmonically pu image reject mixer” INMMIC2004,Italy

M. Borhani and V.Sedghi, "2-D Dual-Tree Wavelet Based Local Adaptive Image Denoising ", 12th State of Iranian Conference on Electrical Engineering, ICEE2004, May 2004.  

M. Borhani and V.Sedghi, "A New Channel Estimator Design for Next Generation High-Speed Mobile Data Communications based on OFDM", 12th State of Iranian Conference on Electrical Engineering, ICEE2004, May 2004.  

M. Borhani and V.Sedghi, "Virtual Private Networks", ISCEE2003, Summer 2003.  

M.S. These:

 winter 2005, Supervisor: Dr. A. A. Abdipour; Advisor : Dr A. Mohammadi; Jury: F. Farzaneh, A. Tavakoli, ; Mark: 19/20

The thesis was supported with Iranian Telecommunication Research Center

In the design of radio transceivers with high degree of integration, the receiver front end is typically the most critical component to overall system performance. The work presented in this thesis will focus on the development of an Image reject mixer in Ka band. The mixer topology is based on an antiparallel Schottky diode pair. local oscillators (LOs) capable of providing adequate output power at mm-wave frequencies remain bulky and expensive.  There are several techniques that allow the use of a lower frequency microwave LO to achieve the same RF downconversion.  One of these is to employ a subharmonic mixer.  In this case, a lower frequency LO is applied and the RF mixes with a harmonic multiple of the LO signal to produce the desired intermediate frequency (IF). A characterization of mixer performance is obtained through simulations and analysis. Designed mixer exhibits a 6.5 dB conversion loss and 7.5 Niose figure at an RF of 28 GHz, an LO frequency of 13.5 GHz, and an IF of 1 GHz.

BS These:

Simulation of RF section in ESM3 system with VHDL winter 2002,   Supervisor: Dr. A.M. Pezeshk; Mark: 20/20

 Term Papers:

Wavelet harmonic Balance, Space Diversity and Space time coding, Ku band Oscillator Design, X band Balance Amplifier Design, Phase Conjugation waves.

Courses:

Data Communication, Digital Signal Processing, Advance Communication Networks, Queues Theory and Traffic engineering, Photonic, Wireless Networks,

RF & Microwave devices for wireless networks, Satellite communication,  Nonlinear design for active circuits in high frequency, Microwave active circuit design , Digital and Analog Television systems,

Experiences:

Research Assistant, Microwave /MM-wave & wireless Communication Research Lab, fall 2003-spring 2005, Tehran Polytechnic University of Technology.

Research Assistant,

Laboratory Assistant, Communication Circuit, Spring 2005, fall 2004, Tehran Polytechnic University of Technology.

Working:

CTO of Soha Industrial Development

Design and Implementation of a Car Kit, Soha Industrial Development

Design and Implementation of an Acoustic Echo Canceller on DSK 6713, Soha Industrial    Development

Design and Simulation of Access Network,  Soha Industrial Development

Design a Ka band Tripler, Industries Ministry's research group,  Summer2004

SPARC microprocessors, Iranian Telecommunication Research Center (ITRC) July-September 2001.

Special skills:

In depth practical experience with application packages such as ADS (Advanced Design System),Opnet,

 Serenade, ORCAD 10, SPICE, MATLAB 7.0, VHDL, Max+plus