Expert Details

Expert in Network Architecture, Design and Analysis

Expert ID: 721775 New Jersey, USA

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Expert taught graduate courses in probability and stochastic modeling as an Adjunct Professor of Computer Science at (Undisclosed)'s Institute of Technology in Hoboken, NJ. He has used the concepts in the fields of Probability, Statistics and Stochastic Modeling extensively in his research over the last twenty years. In the area of algorithmic solutions to stochastic models, queueing theory, and applied probability, he introduced the now popular Markovian Arrival Process (MAP) as a versatile and tractable class which includes both renewal and non-renewal point processes and has developed algorithms to apply these results to real network traffic for engineering and end-user performance assessment. Expert drastically simplified analysis and algorithms for a large class of complex queueing models (BMAP/G/1 queue), which also include multiplexed, highly correlated arrival streams. He contributed to the development of algorithms for numerically inverting multidimensional Laplace-Stieltjes transforms and/or probability generating functions (with an important application of allowing numerical computations to be performed for various transient queueing models).

While at Bell Laboratories, Expert defined an overall control architecture for Broadband ISDN/ATM, incorporating end-to-end flow control, traffic shaping capabilities and higher layer control functions, portions of which have been incorporated into inter-national standards. He used exact and approximate models to quantified the multiplexing gain for a large number of bursty sources and the impact on engineering of ATM networks. Using exact models, he demonstrated that predictions based on the popular notions of effective bandwidth could be arbitrarily poor. He proposed more accurate approximations and performed analytic modeling to assess the effectiveness of several selective cell discard mechanisms for congestion control in broadband networks.

He provided end-to end performance, reliability and availability analysis of AT&T's Common Open IP Platform. He prescribed and analyzed end-to-end load testing to assess the capacity for IP services. He reviewed ATM and wireless patents for potential infringements relating to particular clients.Expert provided capacity planning methodologies and IP traffic modeling for high-speed transport to the desktop.He provided capacity planning methodologies and service reliability modeling for an audioconferencing service provider.

Expert may consult nationally and internationally, and is also local to the following cities: New York, New York - Yonkers, New York - Newark, New Jersey - Jersey City, New Jersey - Paterson, New Jersey - Elizabeth, New Jersey - Bridgeport, Connecticut - New Haven, Connecticut - Stamford, Connecticut - Philadelphia, Pennsylvania

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Education

Year Degree Subject Institution
Year: 1981 Degree: Ph.D. Subject: Operations Research Institution: University of Delaware
Year: 1978 Degree: M.S. Subject: Statistics Institution: University of Delaware
Year: 1976 Degree: B.S. Subject: Mathematics Institution: Towson University

Work History

Years Employer Title Department Responsibilities
Years: 1994 to Present Employer: Undisclosed Title: Principal Consultant Department: Responsibilities: Expert is responsible for the end-to-end performance, reliability and availability analysis of wireless, IP, Broadband and satellite systems. He supervises simulation and load testing activities to assess the capacity and scalability of various telecommunication systems. He has developed analytic traffic models for bursty IP and broadband traffic and used these to develop traffic engineering and network sizing algorithms.

Selected Clients: Allied Riser Communications, Astrolink International Ltd., AT&T Laboratories, A. T. Kearney, Exigent International, Fairfield Resources International, Kenyon & Kenyon.
Years: 1981 to 1994 Employer: Bell Laboratories Title: Distinguished Member of Technical Staff Department: Responsibilities: Expert defined an overall control architecture for Broadband ISDN/ATM, incorporating end-to-end flow control, traffic shaping capabilities and higher layer control functions, portions of which have been incorporated into inter-national standards.

International Experience

Years Country / Region Summary
Years: 1998 to 1998 Country / Region: London, Tokyo, Melbourne, Austrailia Summary: He led the performance section of the first phase of a technical due diligence of an international satellite company.
Years: 1999 to 1999 Country / Region: London, Tokyo, Melbourne, Austrailia Summary: He led the performance section of the second phase of a technical due diligence of an international satellite company.

Career Accomplishments

Associations / Societies
Expert is a Senior Member of IEEE. He is also belongs to INFORMS, ACM, and ICCA.
Professional Appointments
He was the former Associate Editor for Queueing Systems. He is a reviewer for National Science Foundation proposals and many scientific journals. He is a frequent speaker at international conferences and universities.
Awards / Recognition
He received the Mary Hudson Scarborough Award for Excellence in Mathematics from Towson University. He received the Allan P. Colburn Prize for best dissertation in Engineering and Mathematical Sciences from the University of Delaware. He is listed in "Who's Who in Frontier Science and Technology" and "American Men and Women in Science".
Publications and Patents Summary
He has over 50 papers published in scientific journals and has two patents.

Fields of Expertise

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