Dhadesugoor R. Vaman of Digital Compression Technology

High-Speed Multimedia Services require transport of Voice, Data and Video Services over existing infrastructures. Traditional Orthogonal Frequency Division Multiplexing (OFDM) has been standardized in both wired and wireless infrastructures for use for some time. Orthogonality ensures embedding Quadrature Amplitude Modulation (QAM) in each RF carrier which is a significant attractive feature of OFDM. However, pitfalls are discovered in using OFDM due to high Peak to Average Power Ratio (PAPR) when large number of RF carriers is used. Also, the use of OFDM allowed easy embedding of QAM which removed the problem of Inter-Symbol- Interference (ISI). A single carrier QAM is also not feasible since large number of constellations diminishes the noise margin for information recovery. The high PAPR reduced the number of RF carriers, thereby limiting the data rates when using OFDM. As evolution towards high-speed data transfer has become critical, increased awareness of the need to build communications subsystems without increasing the cost is becoming a challenge. Also, the use of Fiber Optic media to homes has shown to be expensive as new infrastructure development significantly increases costs and the Return On Investment (ROI) is difficult at best for network operators. Also, the average consumer may experience significant network outage and cost when infrastructure breaks. This presentation discusses these issues and shows alternate methods for developing the high-speed communication systems for achieving high-speed data transmission over existing infrastructure with some simulated andimplemented results.

Biography:

Dhadesugoor R. Vaman is the Chief Technology Officer, Digital Compression Technology, L.L.C. He has more than 49 years of research, project management and executive management experience in the field of telecommunications and networking. Currently, he has been working on designing and manufacturing thehigh-speed data transport systems with high spectral efficiency algorithms for deployment in wired (DSL) and wireless infrastructures. The first implemented product is expected to deliver full duplex 480 Mbit/s up to 1000 ft. of telephone wire and up to 80 Mbit/s on 5000 ft. telephone wire. The product has been implemented and tested in real networks. This product is now being manufactured through outsource in Canada. The product is based on his pioneering patent which was co-authored with late Elliot Gruenberg and issued in 1999. His research experience includes Broadband wired and wireless networks, High Quality Scalable Video Coding and High Quality of Service assurance; Distributed Bandwidth and Processor Efficient Network Management for wireless and sensor networks; Managing network interferences such as Fading using Autonomous Error Correction, Discrete Sample Interleaving and Phase Equalization;  Graph Theoretic Routing with Optimum Scheduling and Cluster Based Management for QoS; Zone finding and Position, Location and Tracking of mobile radios for strict friendly multi-hop connected path with detection and prevention of malicious radios; design of see-through-the-wall sensors for battlefield and homeland theaters.

Prior to joining DCT, Dr. Vaman was the Texas A&M University System Regents Professor, Texas Instrument Endowed Chair Professor and Founding Director of ARO Center for Battlefield Communications (CeBCom) Research, ECE Department, Prairie View A&M University (PVAMU), the CEO of Megaxess (now restructured as MXC) which developed a business ISP products that to offered differentiated QoS assured multi-services with dynamic bandwidth management and successfully deployed in several ISPs and a high-speed self-healing “Band Aid on the fly” product to maintain network connectivity at all times. He was able to raise the valuation of the company to $ 180 Million in 2000 based on Arthur D. Little’s evaluation. Prior to being a CEO, Dr. Vaman was a Professor of EECS and founding Director of Advanced Telecommunications Institute, Stevens Institute of Technology (1984-1998); Member, Technology Staff in COMSAT (Currently Lockheed Martin) Laboratories (1981-84) and Network Analysis Corporation (CONTEL) (1979-81); Research Associate in Communications Laboratory, The City College of New York (1974-79); and Systems Engineer in Space Applications Center (Indian Space Research Organization) (1971-1974). He was also the Chairman of IEEE 802.9 ISLAN Standards Committee and made numerous technical contributions and produced 5 standards including one ISO standard. While in Academia, Dr. Vaman has significant funding (Over 30 Million USD in a span of 32 years to support the Centers’ research and supported faculty, visiting Professors and students. He has administered over 46 doctoral dissertations and numerous Master’s theses in both Texas A&M system as well as Stevens Institute. Dr. Vaman has published over 300 papers in refereed journals and conferences; widely lectured nationally and internationally on many panels including the ones where inter-disciplinary issues and strategic issues were of importance; has been a key note speaker in many IEEE and other conferences, and industry forums. More recently, he was the Vice Chair of the Industry Forum in IEEE Globecom-2011, Houston, TX. He also has presented national and international workshops. He has received numerous awards and over 30 patents, and many of his innovations have been successfully transferred to industry for developing commercial products.

Dr. Vaman was in the batch of 1969 at NIT Warangal for his B.E. degree and he did receive his M.Tech degree in 1972, M.E EE and Ph.D. EE degrees from the City University of New York in 1975 and 1979 respectively. His doctoral dissertation pioneered the first implementation of packet voice system in 1977 using DARPA network, which later paved the way to become VOIP. His doctoral work also was used to develop the first Voice mail system in 1977.

Dr. Vaman also had developed a hobby by learning south Indian classical music vocal in the last 10 years. He is an avid tennis player even today and in NITW he played Cricket, Football and Chess (College Captain of the Chess team).

He has been involved in the Charity work to put street kids to school in Mumbai.

Honors & Awards:

1. “Certificate of Appreciation of Music (South Indian Classical Music Vocal)”, Awarded by Geethanjali Music School, Bethesda, MD, 2016 – 2017.
2. “Distinguished Alumni Professional Achievement Award”, Awarded by the National Institute of Technology, Warangal, India, January 31, 2015.
3. “Texas A&M University System Board of Regents Professorship (Texas A&M Regents Professor)”, Awarded by the Texas A&M University Board of Regents, November 3, 2011.
4. “Outstanding Researcher of the Year for Innovative and Extensive Research”, Prairie View A&M University, February 22, 2008.
5. “Elected to Vice Speaker of Faculty Senate, Prairie View A&M University, Spring 2008.
6. “Elected to Faculty Senate 2007 – 2009” at Prairie View A&M University, Texas.
7. “Family award for exemplary community services”, Frederick, MD, August 16, 2003.
8. “Texas Instruments Endowed Chair Professor”, Electrical and Computer Engineering Department, College of Engineering, Prairie View A&M University, 2002.
9. Outstanding Paper Award, “Adaptive Mobile Network Protocol-Extending the Idea of Hybrid IP/ATM for General Mobile System”, Proceedings of the ATM Workshop, Paper ATM 99-03, May 25, 1999.
10. Excellence in Services and Impact the Institution to Achieve National Preeminence, Stevens Institution of Technology, May 1996.
11. “IEEE Medallion Award” for Technical Contributions and Development of IEEE/ISO/IEC 8802-9 Standard that Provides the First Implementation of Simultaneous Access of ISDN and INTERNET Services”, December 27, 1996.
12. “IEEE standards board” appreciation award for the contributions to the development of IEEE Standard 802.9 Managed Object Conformance Statement (MOCS) Proforma on February 27, 1996.

11.

1. “IEEE standards board” appreciation award for the contributions to the development of IEEE Standard 802.9 ISLAN 16-T specification standard on February 27, 1996.
2. “IEEE standards board” appreciation award for the contributions to the development of IEEE Standard 802.9 Protocol Implementation Conformance Statement (PICS) Proforma on February 27, 1996.
3. “IEEE standards board” appreciation award for the contributions to the development of IEEE 802.9 ISLAN Interface standard at the MAC/PHY Layers on December 30, 1994.

Email:

Address:8399 Buckeye Court, Frederick,, Frederick, , MD 21702, United States