Context-sensitive middleware for real-time software in ubiquitous computing environments

Abstract

Context-awareness is increasingly becoming an important capability in devices for ubiquitous computing environments. These devices use on-board sensors and history of user interaction to collect data that are used to adapt their behavior to suit with the current environment. There is a need to support realtime software in ubiquitous computing environments, especially in reactive systems, such as distributed and mobile sensors, location-based information services, etc. In these cases, both behavior and the interaction among devices depend on constantly changing environmental conditions, in addition to explicit user control. This characteristic requires specific system services to support the development and the runtime operation of real-time context-aware software. This implies that the underlying services must themselves be context-semi tive. In this paper, Reconfigurable Context-Sensi tive Middleware (RCSM) is presented to facilitate real-time context-aware software in ubiquitous computing environments.

Adaptive Middleware for Ubiquitous Computing Environments

“…Step 2 are associated with a context variable or context expression using two simple rules described in [14]. 4.…”

“…Enterprise middleware specifications, such as CORBA [8], and middleware for mobile networks, such as ALICE [9], LIME [10], iMAQ [11], Bluedrekar [12], and XMIDDLE [13] do not completely address the fundamental issues related to providing adaptive support for applications in ubicomp environments. In this paper, we will present an adaptive middleware, based on Reconfigurable Context-Sensitive Middleware (RCSM) [5,[14][15][16], for ubicomp environments.…”

A Reliable Multimedia Collaboration System based on Home Network Environment

“…Distance education systems must be able to support real-time interaction, temporal/spatial synchronization and floor control for smooth interaction [4,5]. In a ubiquitous computing environment, computing anytime, anywhere, any devices, the concept of situation-aware middleware has played very important roles in matching user needs with available computing resources in transparent manner in dynamic environments [6]. An example of situationaware applications is a multimedia education system.…”

An Adaptive Fault Tolerance Running on a Cloud Computing Environment

“…Context awareness (or context sensitivity) is an application software system's ability to sense and analyze context from various sources; it lets application software take different actions adaptively in different contexts [2]. In a ubiquitous computing environment, computing anytime, anywhere, any devices, the concept of situation-aware middleware has played very important roles in matching user needs with available computing resources in transparent manner in dynamic environments [3,4]. The development of communication and data networks enables collaborative systems to support diverse activities such as crisis management, cross-continental conferencing, and distributed learning.…”