The execution of distributed applications involving mobile terminals and fixed servers connected by wireless links raises the need for handling network disconnections, both involuntary during unexpected connection breakdowns, and voluntary when the user wants to save money and energy. In this paper, we investigate how standard CORBA mechanisms (Objects By Value and Portable Interceptors) can be...

We consider a realistic podcast distribution application in remote rural areas, where programs have to be recorded into a CD and distributed to the local radio stations. We use a store-carry-and-forward approach, based on mobile agents, that is designed to operate in areas that lack network infrastructure. PrivHab is a georouting protocol that learns the mobility habits of the nodes of the netw...

Abstract: Motivated by Lévy’s characterization of Brownian motion on the line, we propose an analogue of Brownian motion that has as its state space an arbitrary closed subset of the line that is unbounded above and below: such a process will be a martingale, will have the identity function as its quadratic variation process, and will be “continuous” in the sense that its sample paths don’t ski...