Lee Center for Advanced Networking
The Internet grew to a massive scale before a theoretical understanding of its operation was available. As a result, there are problems with the protocols. Unnecessary congestion slows email and Web page downloads. Also, instabilities arise as signaling speeds increase, catastrophically reducing data rates. In their theoretical studies, Steve Low and John Doyle have developed a new protocol, called FAST, allowing stable operation in high speed, long-distance networks. In demonstrations, FAST enables long-distance networks at rates of several gigabits per second. In addition, Doyle is developing a unified theory for complex systems, called Highly Optimized Tolerance (HOT), that predicts accurately the power-law behavior for a wide variety of systems, including sizes of web files, forest fires, and electrical power outages.