Prof. Arogyaswami J. Paulraj

Arogyaswami J. Paulraj is an Indian-American electrical engineer, and academic. He is a Professor Emeritus (Research) in the Department of Electrical Engineering at Stanford University. 
Paulraj was born in Pollachi near Coimbatore, British India in 1944. He attended Montfort Boys' High School in Yercaud, Tamil Nadu. He joined the Indian Navy at age 16 through the National Defense Academy, Khadakvasla, and served the Indian Navy for 26 years. He received a B.E. in electrical engineering from the Naval College of Engineering, Lonavala, and a Ph.D. in electrical engineering from the Indian Institute of Technology, New Delhi. Paulraj's contributions to India came whilst serving in the Indian Navy. In 1972, he developed new electronics for a British-origin Sonar 170B. The technology was widely deployed in the Indian fleet. During 1977- 83, Paulraj led the development of a large surface ship sonar APSOH. This became the fleet sonar for the Indian Navy and its variants are still widely deployed. APSOH was a landmark achievement in Indian Electronics. Paulraj also served as the founding director for three major labs in India, the Center for Artificial Intelligence and Robotics, Defense R&D Organization, the Central Research Laboratories, Bharat Electronics, and the Center for Development of Advanced Computing, Dept. of Electronics (as co-founder). These labs are now a part of India's vast R&D infrastructure. He retired prematurely from the Indian Navy in 1991 with the rank of Commodore. 
He joined Stanford University as a Research Associate in 1991 and was later appointed a Professor (Research) in 1993. His invention (1992) for exploiting multiple antennas at both ends of a wireless link (MIMO) lies at the heart of the current high-speed WiFi and 4G and 5G mobile networks, and has revolutionized high-speed wireless services for billions of people.  He ran a MIMO research program at Stanford for two decades before retiring in 2013. He founded Iospan Wireless for MIMO-OFDMA core technology, and Beceem Communications for 4G chips, which have helped create a wireless technology eco-system now shipping billions of MIMO wireless devices annually. He founded Rasa Networks for WiFi network analytics. Paulraj has two textbooks on MIMO, over 400 archival research publications, and is a co-inventor in 83 patents. He has won and been awarded numerous Awards in India and the United States of America. * (Collected from the public domain) UPDATED ON 28/09/2024