Learn More
he term mobile agent contains two separate and distinct concepts: mobility and agency. 1 Mobile agents refer plainly to self-contained and identifiable computer programs that can move within the network and act on behalf of the user or another entity [1]. The idea of a self-controlled program execution near the data source has been proposed as the next wave(More)
A multimedia application involves information that may be in a form of video, images, audio, text and graphics, need to be stored, retrieved and manipulated in large databases. In this paper, we propose an object-oriented database schema that supports multimedia documents and their temporal, spatial and logical structures. We present a document example and(More)
User Mobility prediction represents a key component in assisting handoff management, resource reservation, and service preconfiguration. However, most of the existing approaches presume that the user travels in an a priori known pattern with some regularity; an assumption that may not always hold. This paper presents a novel framework for user mobility(More)
—Mobile users and applications are putting pressure on wireless network operators to improve the seamless handover of devices and services. Strong business competition for subscribers , along with the ever increasing availability of wireless networks will give nomadic and mobile users the opportunity, and systems the power, to make better handover(More)
Context-aware environments must allow adaptive and autonomous access to context information. This multi-agent middleware uses a negotiation protocol and ontology model to make the environment more easily personalized at runtime and adapted and managed at provisioning time. In a pervasive environment, a wide range of devices and resources use heterogeneous(More)
—This paper presents a novel paradigm to approach the issue of autonomous policy-based management of wired/wire-less differentiated communication systems. In contrast to existing management approaches which require static a priori policy configurations, policies are created dynamically. The proposed framework addresses the management issue from a new(More)