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Nat Natarajan

Nat Natarajan

Principal Engineer III

Dr. Natarajan joined Roberson and Associates in 2014 and has 36 years’ industry experience in wireless communication and networking systems. Dr. Natarajan is an accomplished master network innovator with work experience covering the entire technology life cycle of widely- deployed wireless systems. In his current position, he has been engaged in serving customers with innovative and efficient spectrum sharing strategies that serve business, as well as public interests.

Previously, Dr. Natarajan worked as a Mobility Network Consulting engineer and architect at Cisco Systems, and his work included commercial customer deployment of Universal Mobile Telecommunications System (UMTS) Femto and Macro Long Term Evolution (LTE) systems. Prior to Cisco, Dr. Natarajan joined Motorola and was a Fellow of the Technical Staff. He developed the adaptive routing algorithms for Iridium, a Low Earth Orbit (LEO) satellite communication system. He subsequently pioneered and advocated All-IP Packet switching for mobile wireless networks and led the early customer demonstrations of 4G systems, including Voice over Internet Protocol (VoIP), Session Initiation Protocol (SIP), Mobile IP, and seamless inter-technology handoffs, such as Wi-Fi and Cellular Radio Access Network (RAN) through a sequence of customer trials. He led early research, standardization and pre-commercial implementations of 802.16e/ Worldwide Interoperability for Microwave Technology (WiMAX), as well as LTE, Frequency Division Duplex (FDD), and Time Division Duplex (TDD). Dr. Natarajan began his wireless career at IBM with fundamental contributions to Wireless Local Area Network (WLAN) architecture concepts and specifications of the baseline 802.11 standard that have been acknowledged by the Institute of Electrical and Electronics Engineers (IEEE) and was a Research Staff Member at IBM Thomas J. Watson Research Center in Yorktown Heights, NY.

Through much of his career, Dr. Natarajan has served as a trusted advisory consultant to a variety of customers across the globe. He has 35+ refereed technical publications, three Cisco Achievement Awards, Motorola Science Advisory Board Associate recognition, Global Standards Awards for Outstanding Performance, and 5 IBM Achievement Plateau awards. Dr. Natarajan has 38 issued U.S. patents, including several implemented in commercial wireless systems.

Dr. Natarajan earned his Bachelor of Technology from Indian Institute of Technology (Chennai), Master of Engineering with Distinction from Indian Institute of Science (Bangalore), and Ph.D. from Ohio State University, Columbus, OH. He is an IEEE Senior Member and a member of its communication society.