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Engineer Electrical Engineering

Location:
8854
Posted:
September 25, 2010

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Resume:

Raviteja Gollamudi

*** ********* *****

Piscataway, NJ 08854

848-***-****

*******@*****.***

OBJECTIVE To obtain a full time position in the fields of telecommunications,

digital signal processing, and electrical engineering.

EDUCATION M.S., Computer and Electrical Engineering, Fall 2010 (expected)

Rutgers, the State University of New Jersey, New Brunswick, GPA

3.5/4.0

B.S., Computer and Electrical Engineering, May 2007

Rutgers, the State University of New Jersey, New Brunswick, GPA

3.4/4.0

ENGINEERING Development and Modeling Circuit Simulation Programming/Scripting

SKILLS Tools and Layout Tools Languages

MATLAB/SIMULINK OrCAD circuit C, C++

CoWare SPD simulation tools TCL scripting for

CodeWarrior ExpressPCB test automation

Code Composer Studio

Eclipse

Visual Studio

Test and Measurement Development Platforms Documentation and

Equipment Office tools

RF oscilloscopes, Windows XP/Vista/7 Doxygen for source

spectrum analyzers and Linux Red Hat/ Ubuntu code documentation

signal generators Microsoft Word,

High-speed logic Excel, PowerPoint,

analyzers OneNote, Visio

Agilent 89600 VSA

software

Agilent Signal Studio

software

Keithley Signalmeister

software

WORK EXPERIENCE 1xEVDO Femtocell Development (Global Wireless Technologies) (Jan

2009 - present)

Lead DSP Engineer

Worked in a team environment to design and develop an EVDO Layer one

solution.

Designed and implemented efficient forward link bit level processing

algorithms such as, CRC generation, turbo encoding, data scrambling,

channel interleaving for fixed point DSP processors.

Designed and implemented efficient forward link spreading algorithms

to perform Walsh and complex PN spreading operations for fixed point

DSP processors.

Designed and implemented efficient reverse link algorithms to

perform complex PN generation and de-spreading, and acquisition

operations for fixed point DSP processors.

Designed and implemented efficient reverse link algorithms to

perform RRI, DRC, ACK and DSC channel de-spreading and decoding

operations for fixed point DSP processors.

Designed and implemented efficient reverse link algorithms to

perform data channel de-spreading, demodulation, hybrid-ARQ

combining and channel de-interleaving and de-scrambling operations

for fixed point DSP processors.

Designed and implemented RTOS based multi-core task scheduling

framework to implement the Layer one application.

Designed and implemented processing threads consisting of layer

multiple one modules to be executed by the scheduling framework.

Defined test cases for module, channel and system level tests based

on C.S0032-A v2.0 Minimum Performance Standards document. Tests were

performed to measure functional and performance metrics.

Managed development of TCL scripts implementation to perform Layer 1

testing.

Complete knowledge of the C.S0024-A v3.0 cdma2000 High Rate Packet

Data Air Interface Specification. Partial knowledge of the C.S0002

Physical Layer Standard for cdma2000 Spread Spectrum Systems

specification.

3GPP LTE Femtocell Development(Global Wireless Technologies) (May

2009 - present)

DSP Engineer

Developed downlink LTE modules given in the TS 25.211, TS 25.212 and

TS 25.213 specifications.

Designed and implemented bit level processing for PBCH, PCFICH,

PHICH and PDCCH control channels

Designed and implemented efficient downlink modules such as CRC-16,

convolutional encoder, turbo encoder, rate matcher, scrambler and

modulator.

Designed and implemented resource mapping modules for downlink PBCH,

PCFICH, PDCCH, PHICH, PDSCH, Reference signals and Synchronization

signals.

Designed and implemented RTOS based multi-core task scheduling

framework to implement the Layer one application.

Designed and implemented processing threads consisting of layer

multiple one modules to be executed by scheduling framework.

Performed integration testing and verification of downlink control

channels from bit level processing to IFFT samples output.

Verified proper functionality of downlink control channels operation

using keithley Signalmeister VSA software.

RESEARCH WORK Performed a study of implementing the Wimax physical layer using

wavelet packet modulation. The IFFT/FFT transmit and receive modules

were replaced using the inverse wavelet packet transform and wavelet

packet transform and the following was observed

BER performance in AWGN, slow rician fading and fast rayleigh fading

channels.

BER performance in AWGN channels for different scales of wavelet

packet reconstruction and decomposition

BER performance in fading channels for higher wavelet scales

BER performance for different channel conditions based on used

wavelet.



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