Model-based provisioning and management of adaptive distributed communication in mobile cooperative systems

Adaptation of communication is required to maintain the reliable connection and to ensure the minimum quality in collaborative activities. Within the framework of wireless environment, how can host entities be handled in the event of a sudden unexpected change in communication and reliable sources? This challenging issue is addressed in the context of Emergency rescue system carried out by mobile devices and robots during calamities or disaster. For this kind of scenario, this book proposes an adaptive middleware to support reconfigurable, reliable group communications. Here, the system structure has been viewed at two different states, a control center with high processing power and uninterrupted energy level is responsible for global task and entities like autonomous robots and firemen owning smart devices act locally in the mission. Adaptation at control center is handled by semantic modeling whereas at local entities, it is managed by a software module called communication agent (CA). Modeling follows the well-known SWRL instructions which establish the degree of importance of each communication link or component. Providing generic and scalable solutions for automated self-configuration is driven by rule-based reconfiguration policies. To perform dynamically in changing environment, a trigger mechanism should force this model to take an adaptive action in order to accomplish a certain task, for example, the group chosen in the beginning of a mission need not be the same one during the whole mission. Local entity adaptive mechanisms are handled by CA that manages internal service APIs to configure, set up, and monitors communication services and manages the internal resources to satisfy telecom service requirements

A distributed architecture meta-model for self-managed middleware

Openness and adaptation are the fundamental properties of reflective middleware platforms. Self-managed or autonomic systems require this behaviour, and therefore, reflective middleware platforms are ideally suited to the support of such systems. However, new classes of self-managed applications increasingly require support for co-coordinated, distributed reconfiguration, and there is limited provision for this in current reflective middleware approaches. In this paper, we document a general, flexible architecture meta-model for the safe and valid adaptation of components that make up the implementation of co-ordinating middleware nodes distributed across peer devices. We also investigate the flexibility of this approach in supporting different reconfiguration types in different environmental conditions

(Meta)Modeling "Constitutive Communication": Toward a Real-Time Reflexive Infrastructure for Coordination and Codesign

This thesis explores the complex relationship between communication and design practice as they occur within the development of technologies. Contemporary theories of communication and technology provide a conceptual basis for treating communication and design as reflexive structuring acts that change the affordances of an interaction situation while embedded within an environment that constitutes the situation. Drawing upon some of these theories, a design research project is undertaken to define a general infrastructure for real-time interaction that affords users reflexive capabilities for redesigning and restructuring the relational situation from within. The design solution developed here proposes a variety of strategies to model the emergence, complexity, and multiplicity of objects as the negotiated outcomes of situated human-computer interactions. In order to consider the feasibility of this design, an inquiry is performed to assess contemporary approaches to reflexive infrastructure for real-time interaction. Various existing collaboration and coordination frameworks and support environments are examined that articulate solutions to elements of the problem space outlined in this thesis. The analysis focuses on the place-based and activity-based approaches to representing dynamic interaction situations exemplified by the research systems Orbit and Intermezzo. The way that these approaches enable and constrain the development of dynamic interaction situations provides a ground for considering the feasibility of the proposed mechanisms as means for reflexively modeling responsive emergence. The design research project undertaken here results in a more concrete proposal for design of infrastructures that reflexively model complex relationality and support emergent forms of coordination and codesign.</p

A Distributed Architecture Meta-Model for Self-Managed Middleware

Openness and adaptation are the fundamental properties of reflective middleware platforms. Self-managed or autonomic systems require this behaviour, and therefore, reflective middleware platforms are ideally suited to the support of such systems. However, new classes of self-managed applications increasingly require support for co-coordinated, distributed reconfiguration, and there is limited provision for this in current reflective middleware approaches. In this paper, we document a general, flexible architecture meta-model for the safe and valid adaptation of components that make up the implementation of coordinating middleware nodes distributed across peer devices. We also investigate the flexibility of this approach in supporting different reconfiguration types in different environmental conditions