Distributed continuous media applications that incorporate digital audio and video require predictable response from the operating system and the network. Much recent research in communication networks focuses on providing predictable service at the network level, but current operating systems do not typically provide end-to-end predictability. Our aim is to offer operating system support for p...

A parametric algorithm for identifying the Pareto set of a biobjective integer program is proposed. The algorithm is based on the weighted Chebyshev (Tchebycheff) scalarization, and its running time is asymptotically optimal. A number of extensions are described, including: a technique for handling weakly dominated outcomes, a Pareto set approximation scheme, and an interactive version that pro...

In this paper we investigate filesystem support for continuous media on the Java language. We describe a prototype implementation on a Real-Time Java Server developed as an application-level server on the Real-Time Mach microkernel environment. Java virtual machine has been extended to support filesystem bandwidth reservation facilities existing on Real-Time Mach. Such facilities allow continuo...

In spite of using IEEE 802.11 as medium access control (MAC), most of the ad-hoc routing protocols do not consider contention time that occurs in the medium reservation procedure. Large, contention times can be more critical than hop counts in determining the end-to-end delay. In ad-hoc networks, traffic concentration on some mobile nodes leads to long queuing delays, low packet delivery ratios...

We develop a theoretical model of endogenously determined union density and union membership. A union is formed, continued, or dissolved by majority voting. Given the profitability, production technology, and labor and product market conditions, the union determines the reservation wage that is acceptable to the firm. Based on this reservation wage and other subjective factors, workers vote for...