In July 1997 I completed my dissertation in the Computer Science Department, College of Arts and Sciences, Boston University. Since then, I have been a Research Scientist with Telcordia Technologies (formerly Bellcore) in Morristown, NJ. While at Telcordia, I have continued my work in network measurement and characterization while also working in some new areas: hierarchical, distributed caching for large systems; distributed directory services (LDAP); collaborative shopping in the e-commerce arena (Java, EJB, CORBA).
I'm planning to relocate to the Minneapolis, Minnesota area for the fall of 2000. A link to my HTML resume is available.
Application-level end-to-end measurement enables both faster client response time and improved network performance in wide-area distributed information systems. In my dissertation, I present techniques and tools we have developed for measurement of bottleneck bandwidth and available bandwidth of paths in packet-switched networks. As an example application, we examine the server selection problem that arises when a client must choose among servers offering replicated information. We demonstrate that providing recent measurements of network state allows applications to actively avoid network congestion. Live Internet measurements establish the user-perceived improvement in response time while simulations indicate that network performance also improves. Related papers are available.
Comments to carter@cs.bu.edu.
Page updated November 20, 1999.