In this paper, we present a multicast protocol for wireless ATM network in the case that each user has a specified mobility (high and low mobility) and it joins (or leaves) a multicast group dynamically. We use a hierarchical architecture in the ATM switch network that is inspired by the PNNI(Private Network-Network Interface) routing of ATM forum. The entire network is divided into many peer g...

We describe a framework that is used to build and test software for ubiquitous and mobile computing. The approach involves software-level emulators for computing devices. Since each emulator is implemented as a mobile agent, it can dynamically carry its target software to each of the sub-networks that its device is connected to, on behalf of the device, and it permits the software to interact w...

We define a Mobile Database Community (MDBC) as a dynamic collection of autonomous mobile databases in which each database user can access databases in the community through a wireless communication infrastructure. New participants may join to an MDBC as they move within communication range of one or more hosts which are members of the MDBC. On other hand, MDBC participants may transiently disc...

With the recent developments in wireless networks (802.11, Bluetooth) and the sales of mobile computers of any kind (such as laptop computers, Personal Digital Assistants (PDAs), mobile phones etc.) soaring, we are experiencing the availability of increasingly powerful and mobile computing environments, roaming between different types of network connectivity. We have also recently witnessed the...

Many agent-oriented programming languages are based on the Prolog-like logical goal reduction approach where rules are used to reduce, in a depth-first way, a selected goal. The ability of agents to change between goals means that such languages often overlay the basic computational engine with a mechanism for dynamically changing which goal is selected. Our approach is different. The basic com...

Mobile agents refer to self-contained and identifiable computer programs that can migrate along the network and can act on behalf of the user or other agents. Mobile agents often work on heterogeneous network and operating system environment. Therefore, an integrated logical interface to access physical structure via mobile agent application is become more and more urgent. In this paper, we pro...

This draft proposes a distributed architecture of mobility management in terms of abstracted logical functions. Mobility management functions are abstracted into different logical functions: (1) allocation of home network prefixes or home addresses to mobile nodes; (2) location management which includes managing the IP addresses and locations of the mobile nodes; and (3) mobility routing which ...

This paper presents a framework for building context-aware applications in ubiquitous and mobile computing settings. The framework provides people, places, and things with computational functionalities to support and annotate them. It is unique among existing systems because the functionalities are implemented by mobile agents. Using location-tracking systems, this framework can navigate mobile...