LEAD ENGINEER

Engineering professional with extensive experience in the design and

application of wireless technologies. Expertise in signal processing, air-

interface standards, simulation and analysis. Particularly skilled in

problem solving including debugging and reverse engineering based on in-

depth knowledge of the trends, understandings, and performance trade-offs

of various wireless systems. Trained in engineering, mathematics, and

physics.

SKILLS

* Wireless Systems - Air-interface of 1G, 2G, 3G, and 4G includes: AMPS, n-

AMPS, GSM, EDGE, TDMA, iDEN, CDMA (IS-95 and cdma2K), 1xEV-DO, TDS-CDMA,

UMTS (WCDMA and HSPA), WiFi, WiBro, WiMAX, UMB, LTE, UWB, iBOC, and DVB.

* RF Analysis and Simulations - interferences, intermodulation, passive

intermodulation, system budget, link budget, coverage, capacity, and

system design as well as components, manufacturing tolerance, radio

design and performance.

* Digital Signal Processing - signal generation, characterization, and

processing, channel coding and decoding, multi-rate simulation, filter

design, automatic gain control, and equalization.

* Mathematics - statistics, distributions, Monte-Carlo simulations,

mathematical analysis, symmetry and group theory, number theory and

coding.

* Reliabilities - accelerated aging, failure mode analysis, component

tolerance analysis.

* Instrumentation - spectrum analyzer, network analyzer, logic analyzer,

signal generator, scope, fiber optics.

* Applications - MATLAB, Simulink, Framemaker, S, MS Words, MS Excel, C,

Unix, Fortran, Basic.

PROFESSIONAL EXPERIENCE

COMMSCOPE CORP.; ANDREW CORP.; CELIANT CORP.; NJ, 2001-2013

Senior Principal Engineer

* Resident expert on the application of Crest Factor Reduction of wireless

signals.

* Performed system engineering, design trade-off, and specification of

integrated products such as the Digital Multi-Carrier Amplifier Unit,

Multi-Carrier Power Amplifier, and the Remote Radio Head.

* Performed extensive analysis of RF systems with respect to

intermodulation distortions, filter performance, coverage, capacity,

voice activity, and amplifier efficiency/degradation trade-offs.

* Resident expert of air-interface standards, implementation, and

performance of the 1G, 2G, 3G, and 4G wireless standards; explored

possibilities for 5G wireless standards.

* Analyzed, characterized and generated test waveforms for the 1G, 2G, 3G,

and 4G wireless standards as the standards evolved and finalized.

* Generated and performed BER test using Convolutional and Turbo coding and

decoding.

* Consultant to the Base Station Antenna group on future generation antenna

systems and design including non-traditional exotic antenna systems as

well as Passive Intermods (PIM).

* Expert on Physical Layer of air-interfaces, working knowledge of call

processing and upper layers as well as propagation, range, and capacity.

* Member of the TL9000 implementation team that led to ISO9000

Certification.

* Served in the 4G Americas HSPA+LTE Carrier Aggregation Technical Work

Group resulted in the "HSPA+LTE Carrier Aggregation" white paper.

LUCENT TECHNOLOGIES; AT&T BELL LABS; BELL LABS, NJ, 1980-2001

Consulting Member of Technical Staff

Distinguished Member of Technical Staff

Member of Technical Staff

CONSULTING /ANALYSIS

* Performed fundamental analysis and simulation of IS-95 CDMA system;

analyzed waveform quality, single-tone desensitization, phase noise, I/Q

imbalance, and filter specifications.

* Performed detailed analysis of the UMTS and the 1xEV-DO systems in terms

of transmitter and receiver quality and performance for single and

multiple carriers.

* Performed detailed analysis of the trade-off and limitations of digital

pre-distortion for the applications in amplifier design.

* Partnered with teams in the design of the Orange ASIC, and the Silverside

ASIC.

* Performed bit accurate simulations of the FPGAs used in the various

radios include advices on the selection of filter coefficients,

truncation and quantization errors, and over-sampling rates.

FIBER OPTICS / RF

* Analyzed and simulated intermodulation product distributions (up to 7th

and 9th order) as they applied to fiber optics components and RF

amplifiers.

* Analyzed problems associated with Linear Amplifier designs for AMPS, in

particular intermodulation analysis, and carrier peaking and phasing

analysis.

* Designed fiber optics components of the Microcell Fiber Optics system for

the Autoplex Cellular Systems including specifications on fiber optics

transmitter, receiver, and link. Analyzed and specified specifications on

Fiber Optics Connectors and Splices.

* Analyzed Manufacturing and Component Tolerance of Fiber Optics

Microcellular System and Circuits.

* Trained factory employees on handling and testing of fiber optics

components and qualified vendors through onsite inspection of their

manufacturing.

* Member of Cross Functional Yield Quality Improvement Team, Technology

Planning Committee, RF Tools Quality Improvement Team, and Hardware

Development Quality Improvement Team.

* Modeled designs with circuit and system simulation tools such as MATLAB,

Simulink, HP-ADS, SystemView, and SPW. Beta Tester and Evaluator of

HP/Agilent RF and Wireless Products.

SEMI CONDUCTORS / QUALITY CONTROL / FAILURE ANALYSIS

* Analyzed, characterized and monitored CSBH and DFB laser models for

Undersea Cable (TAT-9, TAT-10), 1.7Gb Terrestrial System, WDM and SONET

developments.

* Designed testing sequences to characterize and certify quality of lasers.

Monitored and analyzed characteristics and yield of the laser in each of

the testing steps. Performed Failure Mode Analysis (FMA) of semi-

conductor lasers.

* Analyzed, studied design, and conducted failure analysis of lasers with

respect to facet coating on electro-optical properties of lasers.

* Interacted with factory engineers with respect to yield, product

specification, quality control and calibrations.

* Managed reliability studies in terms of accelerated aging of electro-

optical properties of lasers.

* Modeled and analyzed flow dynamics, heat, mass, and momentum transfer,

and reaction chamber design of MOCVD and LPE crystal growth.

* Studied physics of gain-guided and proton implanted semiconductor lasers

for standard and high power applications.

MASSACHUSETTS INSTITUTE OF TECHNOLOGY, CAMBRIDGE, MA

Research Associate

Researched graphite intercalation compounds with x-ray diffraction, Raman

and infrared spectroscopy, and modeled phonon and electron properties.

LAWRENCE LIVERMORE LABORATORY, LIVERMORE, CA

Engineer

* Studied physics of gain-guided and proton implanted semiconductor lasers

for standard and high power applications.

* Obtained security clearance from the Department of Energy.

BELL LABS, NJ

Co-op Student

* Performed fundamental experiments on Ion-Surface Collisions under Ultra-

High Vacuum, resulted in Masters' Thesis.

* Performed measurements on electron traps in III-V semiconductor

compounds.

* Modeled and analyzed Frequency Dependent Negative Resistance devices in

touch tone filter design.

EDUCATION

Electrical Engineering, MIT (Sc.D.)

Business, Rutgers University (M.B.A.)

Electrical Engineering and Computer Science, MIT (S.B., S.M., E.E.)

Physics, MIT (S.B.)

Citizenship: US

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