Engineer Project

RON PORAT

RON

**** ******** **. #*** *** Diego, CA 92106

858-***-**** abng59@r.postjobfree.com

SUMMARY

SUMMARY

Highly experienced wireless and wireline communication systems engineer. Designed and researched

cellular, wireless and wireline local area networks, Ethernet, and satellite communication systems. Typically

led the product algorithm R&D, contributed to relevant standards, solved key problems and initiated work on

new products.

PROFESSIONAL

PROFESSIONAL EXPERIENCE

- MTS

InterDigital September 2009 to -

InterDigital

LTE-A R&D in the areas of MU-MIMO, CoMP and Heterogeneous networks

March 2009 to – July 2009

Mitsubishi Electric Research Labs - Consultant

MIMO/Interference Mitigation Related R&D – Worked on feedback mechanisms for MU-MIMO, Multi-BS

MIMO, interference nulling and codebook design for CL-MIMO for 4G (802.16m and LTE-A) standards.

Submitted several contributions to 802.16m and filed three patents. Contribution on concatenated codebooks

was accepted for 802.16m Multi-BS MIMO Joint Processing. Submitted two accepted papers to Asilomar

2009 conference. Followed the same topics in LTE-A.

- Principal Systems Engineer

Wireless Principal September 2004 to February 2009

Nextwave Wireless

Conducted wide range of WiMAX based product system design and research as an individual contributor,

project lead and algorithm lead. Participated in technical due diligences.

802.16e and 802.16m standards R&D - submitted contributions to 802.16e and 802.16m in the areas

•

of MIMO, interference mitigation, UL control channel, frame structure and more.

Co-Chaired 802.16m MIMO expert group

•

MIMO project lead – defined project goals, schedule and deliveries. Project involved R&D in all

•

aspects of single/multiuser -MIMO and beamforming for TDD/FDD BTS and MS products

BTS array signal processing lead – led the definition, requirements, schedule and algorithms required

•

for Nextwave BTS’ MIMO/beamforming subsystem including RF calibration and scheduler design.

WiMAX Chipset Design - Designed and worked on the following topics - spatial multiplexing receiver

•

using state of the art sphere decoding and K-best (QRM-MLD) algorithms with ML performance,

codebook search for CL-MIMO, network entry, time/frequency acquisition and synchronization,

channel estimation, ranging, hybrid ARQ, time frequency and power control loops, link budgets and

deployment issues.

Initiated LTE awareness at Nextwave – made a presentation on LTE to upper management. As a

•

result started participation in LTE standards and tracked technical contributions in releases 8 through

10.

LTE chipset design – worked on system issues and required algorithm changes for migrating

•

Nextwave WiMAX chipset to LTE

Participated in the due-diligences of Go-Networks, a company employing beamforming for enhanced

•

performance in the Metro-WiFi space and Purewave and BRN Phoenix, - WiMAX BTS companies

with beamforming emphasis

Thirteen patents filed and one paper published in VTC 2009

•

Entropic July 2001 to September 2004

Entropic Communications - Senior Staff Engineer

Entropic is the creator and leader of a new industry standard for high speed home networking over coaxial

cables http://www.mocalliance.org/. As of January 2009 more than 20 million chipsets supporting up to

250Mbps PHY rates and 175Mbps MAC rates were sold.

Led an OFDM based PHY development of Entropic product

•

Defined and researched key elements of the system such as bit-loading, narrow band interference

•

mitigation, power spectrum shaping for reduced interference and shaped OFDM

Worked on most aspects of the modem including acquisition, channel estimation, IQ imbalance

•

estimation and correction (a unique over the network algorithm) and coding

Participated in channel characterization campaign – Entropic became the leader and only company

•

with extensive knowledge and data base of the in-house coax cable characteristics when used for

local area networks

Researched next generation products in the UWB and DVB-H spaces

•

Five patents filed and three papers presented in conferences

•

January 1997 to July 2001

Comcore Semiconductors - Staff System Engineer

(Acquired

(Acquired by National Semiconductor)

PHY Systems lead of modem development of 802.11a Wireless LAN standard. Work included AGC,

•

acquisition, tracking, channel estimation, coding and other aspects of the design.

Participated in the design of 100Base-T and Gigabit Ethernet – researched novel architectures for

•

combined DFE and trellis decoding for improved ISI mitigation (DDFSE). Researched non-linear

NEXT/FEXT echo cancellation.

Developed a single carrier QAM Modem for the VDSL market – implemented IQ imbalance, blind

•

equalization, time and frequency tracking, convolutional and turbo decoding.

Participated in the T1E1.4 DSL standards meetings and 802.11a standards meeting

•

December 1994 to December 1996

Qualcomm - Communication System Engineer

Designed a novel algorithm for rate detection in a CDMA system which was applied to Globalstar and

•

filed for a patent

Responsible for algorithms design of a channel emulator for Globalstar - a mobile satellite based

•

CDMA voice communication system.

Evaluated convolutional codes and Trellis Coded Modulation performance for high data rate

•

transmission in a cellular network (EV-DO)

PUBLICATIONS

1. Ron Porat and Fred Harris, “Resolving and Correcting Gain and Phase Mismatch in Transmitters and

Receivers for Wideband OFDM Systems,” Asilomar 2002 conference

2. Mikko Valkama, Ron Porat, and Fred Harris, “OFDM Transmission with Receiver Windowing for

Improved Interference Rejection,” Asilomar 2003 conference

3. Mikko Valkama, Ron Porat, and Fred Harris, “On Frequency Offset Estimation in the Presence of

Narrowband Interference,” ISCCSP-2004

4. Ron Porat, Maryam Shanechi and Uri Erez, “Comparison of Practical Feedback Algorithms for

Multiuser MIMO,” VTC Spring 2009

5. expanded version submitted to IEEE Transactions on Communications

6. Ron Port, Phil Orlik, “Parametric Compression of Rank-1 Analog Feedback”, Asilomar 2009

7. Man-On Pun, Ron Porat, Philip Orlik “Codebook-based Quantized MIMO Feedback for Closed-Loop

Transmit Precoding”, Asilomar 2009

PATENTS (Granted and Pending)

PATENTS

1. “Broadband network for coaxial cable using multi-carrier modulation”

2. “Echo Profile Probe”

3. “Frequency diversity in multicarrier system”

4. “Power spectrum shaping to reduce interference effects in devices sharing a communication

medium”

5. “Broadband cable network utilizing common bit-loading”

6. “System and method for Facilitating Co-Channel and Co-Existence Via Enhanced Frame Preambles”

7. “Methods and Apparatus for Identifying Subscriber Station Mobility”

8. “Multi-band channel aggregation”

9. “Channel aggregation”

10. “Tiling Allocations for Wireless Communication”

11. “Intercell Interference Management”

12. “Advanced Technology Frame Structure with Backward Compatibility”

13. “Hybrid Feedback for Closed Loop MIMO”

14. “Closed Loop MIMO Harmonized Feedback Mechanism”

15. “Signal Transmission Parameter Control Using Channel Sounding”

16. “Downlink Acquisition”

17. “Improved Precoder for Multiple-Subcarrier Band Feedback”

18. “Closed Form Singular Value Decomposition”

19. Several more submitted on MIMO topics

EDUCATION

EDUCATION

Technion - Israel Institute of Technology - MSEE

Technion June 1994

• Thesis - “Methods for Universal Classification”, under the supervision of Prof. Jacob Ziv. This

research, in the area of information theory, discusses the problem of classifying an information

sequence to one of two probabilistic sources, which are unknown explicitly. It shows that the optimal

solution computes the empirical divergence, and analyzes two methods for computing the

divergence.

• Coursework taken in the areas of signal and image processing, adaptive signal processing,

communication, information theory, and stochastic processes

March 1990

Technion - BSEE Summa cum Laude

• Completed final project in speech compression (linear predictive transform coding algorithm)

Extracurricular –

Internship at IBM research center.

•

Teaching assistant in math courses at the Technion.

•

Taken advanced Math courses in the Mathematics Faculty at the Technion while in high school

•

Fifth place in Mathematical Olympiad

•

Contact this candidate