System Development

Basman Dahleh

Palos Heights, IL

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

PROFESSIONAL SUMMARY

Over 20 years of experience in product development and product management, team development and leadership,

wireless communication system research and development, customer and system product requirements generation

for hardware and software, hardware development, embedded systems architectures, customer support and

training, software release and QA management, network deployment, system analytics, device migration and

network management systems.

EXPERIENCE

Cambium Networks Rolling Meadows, IL

Head of Wireless Product and Systems Architecture Team – 2011 –March 2014

• Lead a team of system architects, QA and field teams to develop and validate a custom system based on a

selected standard chipset (Atheros 802.11n). Started with a common embedded Linux distribution and created

a GPS synchronized and deterministic, state of the art, low-cost outdoor wireless TDD point to multipoint

system (4 patents pending).

• Design of a custom TDD system with software features for scalability and migration, system analytics,

data/user scheduler design and modeling, network entry design, network management design tools, power

control algorithms, built-in spectrum analyzer, ranging algorithms, network deployment planning, and all

wireless networking and firewall features in an embedded system environment using a standard Linux

distribution on a standard Atheros chipset

• Management and leadership of system and product architecture team for customized 802.11n products:

MAC/PHY, RF, networking, system design, regulatory compliance (FCC/ETSI) and deployment plans

• MIMO RF system, TX and RX system lineup, and antenna system development with validation

• Go to person for all product system matters in several verticals: Wireless Internet Service Providers, Oil and

Gas, M2M, Outdoor Wireless LED Control, SCADA for Smart Grid

• Design and execution of lab tests to validate chipset performance, suitability and selection for deterministic

mode of operation; expert with communications test equipment

• Project staff planning, hiring, leadership and mentoring; capital budgeting

• Product Road map development, Competitive analysis and benchmarking, Marketing and technical

requirements

• Business development via partnerships with suppliers of accessories for Cambium customers

• Evangelism of the product enablers for network scalability and ROI with customers, resellers and distributors

• Mentor and teacher for engineers, product managers, field deployment teams, and sales teams

• Strategy and innovation leader as head of advanced technology committee and patent committee

Motorola, Inc and Motorola Solutions Arlington Heights/Schaumburg, IL

Engineering Manager: Fixed RF Systems, Software Features and Deployment Planning, March 2006 - 2011

o Product road map, requirements development and software feature architect for custom WiMAX

Point to Multipoint System (meeting FCC and ETSI certification requirements)

o RF System Architect for AP, CPEs, and antennas

o Software Functional Feature Architecture for optimized throughput capacity and latency with QoS

and PHY features needed to ease deployments for final customers deploying VOIP, video, and data

applications in outdoor wireless networks

o Worked closely with Product Management to ensure product is properly aligned for target market

• Developed specifications and selected vendors of custom antenna systems for optimized spectral efficiency in

synchronized networks

• Developed RF features and RF deployment plans/guides for customers using multiple technologies of

broadband wireless equipment including WiMAX, Canopy and WiFi with custom interference mitigation

techniques

• Developed link budget and capacity tool with noise feature to make customer deployments easy and

predictable

• Designed small and large tower layouts for WiMAX systems using ATOLL planning tools

• Worked with customers to select technology deployment options and limitations

• Designed lab and field test plans for FCC/ETSI certification and customer certification testing

• Designed lab for customer certification testing and SW integration and regression testing

• Lead QA team responsible for developing detailed test plans and executing SW integration and regression

testing

• Lead field teams at customer sites for RF network layouts and live system debug and optimization

• Developed and presented process for customers to use for interference mitigation pre and post deployment

• Specified system performance requirements for antennas and various transmitter and receiver elements

addressing scalability and range advantages over competitors

• Lead multiple beta trials with customers and responded to RFPs

• Created Customer Presentations, Training Materials and Tools addressing outdoor wireless solutions for

various markets including internet service providers, smart grid and municipalities, LED lighting control and

video surveillance (include this in the summary)

RF Development Engineer and Engineering Manager, January 1994 – March 2006

Advanced from an individual circuit designer to system integrator to team leader of hardware developers and

system integration teams:

• Lead of GSM/EDGE base station synthesizer and transmitter design teams – 9 person teams

• Lead of GSM/EDGE RF base station system integration and test team: responsible for integration of RX, TX,

synthesizers, power units, digital hardware and firmware elements into a GSM base station cabinet; final test

and debug of the base station to system requirements – 6 person team

• PLL, TX and RX lineup analysis, architecture selection, system analysis, circuit implementation and test

• RF ASIC design, development and test of an RF down converter chip in SiGe

• PCB design and layout of production boards and quick turn test boards

• Provided manufacturing support for board builds, radio builds, and system assembly including factory test,

yield analysis and process improvements in offshore factories

• Development of hw to sw interface documentation and system design documentation for software/firmware

and hardware developers in top down documentation system

• Development of automated test code used for circuit, radio and system evaluation using LABVIEW

• Identification and implementation of design updates for performance, cost, size and yield improvements

• Development of design specifications for custom 802.11 chip for seamless mobility to/from GSM systems

• Development and execution of consumer safety conformance test plan on WLAN/GSM subscribers

• WLAN (802.11a,b and g) and GSM system implementation for seamless mobility between GSM and WLAN;

Developed test metrics, performed debug and verification for handoffs between WLAN and GSM;

• WLAN system integration and debug at customer beta sites

• Performance of FCC compliance testing on GSM/WLAN subscriber units

OTHER SKILLS

Teaching and Tutoring: Customers and Peers (EXPERT); College Students (MID-EXPERT); HIGH SCHOOL

(EXPERT); Youth Leadership and development (EXPERT);

Presentation and public speaking skills: (EXPERT - CEO to installation technicians, from single listener to

large auditoriums)

Wireless Interfaces and Expertise levels:

802.11- WiFi (EXPERT); 802.16d/e WiMAX (EXPERT); LTE (MID); GSM and Backhaul (MID-EXPERT);

Other Interfaces: FIBER (Novice); Outdoor wireless networking: (EXPERT); Networking IP: (MID)

Capacity and RF Planning tools: ATOLL – (MID-EXPERT); building capacity/link planning tools (EXPERT)

Other engineering tools: WireShark (MID); Mentor Graphics/Cadence (old – MID); Labview Automation (MID-

EXPERT); IXIA Packet Generators/Testers (MID); IPERF (EXPERT); Oscilloscopes, Signal Generators,

Spectrum Analyzers and RF test equipment (EXPERT); Antenna Test Chambers (EXPERT);

EDUCATION

B.S. Degree in Electrical Engineering University of Illinois, Urbana-Champaign (May 1991)

M.S. Degree in Electrical Engineering University of Illinois, Urbana-Champaign (December 1993)

Thesis topic: Bandwidth Enhancement of Microstrip Patch Antennas with Stacked Patches

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