Middleware for ubiquitous context-awareness

Rocha, Ricardo Couto Antunes da; Endler, Markus; Siqueira, Thiago Senador de

doi:10.1145/1462789.1462797

Cited by 13 publications

(6 citation statements)

References 18 publications

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“…In addition, da Rocha et al (2008) propose an event-based middleware approach for deploying ubiquitous context-aware application that achieves application transparency in a scalable distributed system. The paper explores publish/subscribe mechanism to manage events such as asynchronous communications and rendering personalised information to consumers.…”

Section: Mobile and Agriculturementioning

confidence: 99%

Facilitating agronomic mobile data management in a crop field

Deters

Lomotey

Guttikonda

2017

IJSAMI

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One of the enterprises that has heavily adopted mobile technology today is the agriculture sector. Farmers and agro specialists can use their smartphones and tablets to easily communicate, advertise goods and services, as well as access agronomic data in soft-real time. The palpable barrier however is the mode of communication of these mobile devices, which is the use of wireless channels orthodoxly. As a result, agronomic mobile applications can experience bandwidth fluctuations and inefficient propagation of data in mobile cloud computing architectures. To address this issue, some existing works proposed a P2P synchronisation technique that is based on three algorithms namely: bloom filters, whole state data transfer, and exchange of deltas only. In this paper, we have totally redesigned and replaced the P2P synchronisations with the data-centric publish-subscribe model that improves the efficiency of the agronomic data synchronisation. As part of this research, a real-world agronomic mobile app is developed and tested where empirical evaluations show that the data-centric publish-subscribe approach is better in terms of latency optimisation in agronomic data management. The well-researched app is called FlagThis and it is available in the App store for free download by farmers and agro-experts.

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Section: Mobile and Agriculturementioning

confidence: 99%

Facilitating agronomic mobile data management in a crop field

Deters

Lomotey

Guttikonda

2017

IJSAMI

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“…Ubiquitous systems must provide, at anytime, access to heterogeneous, distributed and unpredictable context information, on a global scale, and for different scenarios, allowing the discovery of new context types and ensuring semantic context interoperability [4].…”

Section: A Challenges Of Ubiquitous Computingmentioning

confidence: 99%

“…Given the complexity of developing ubiquitous and context-aware applications, the literature [3] [4] proposes the B. J. A. Neto is a master student sponsored by CAPES R. M. C. Andrade is a D-T Level 2 researcher, sponsored by CNPq A. Fonteles is a master student sponsored by CNPQ use of architectures and middlewares like TOTA [5] and LIME [6] as also support systems like SysSU [7], that simplify achieving ubiquity.…”

Section: Introductionmentioning

confidence: 99%

A coordination framework for dynamic adaptation in ubiquitous systems based on distributed tuple space

Neto

Andrade

Maia

et al. 2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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The evolution of mobile technologies allows the emerging of ubiquitous systems, able to anticipate user needs and to seamlessly adapt to context changes. These systems present the problem of dynamic adaptation in a highly distributed, heterogeneous and volatile environment, since it may be difficult to collect and process context information from distributed unknown sources. In order to facilitate the development of such systems, this paper extends an existing coordination framework based on tuple spaces, aiming at the management of distributed information. Hence, a decentralized coordination framework was created, offering primitives to developers to create ubiquitous systems able to interact and cooperate in scenarios of total decentralization. This paper reports some experimental results obtained in a testbed of smartphones and tablets which demonstrate the practical feasibility of our approach and pointed out how our solution can grant context data dissemination in ad hoc and infrastructured networks.

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“…There exist a number of approaches towards realizing so called ubiquitous context awareness [8], which basically aim at providing anytime access to the context information across the heterogeneous and distributed environments irrespective of the origin of the context information. For example, it is argued in [9] that an integration layer which hides the differences between heterogeneous context-aware systems is required to achieve global scalability.…”

Section: Related Workmentioning

confidence: 99%

“…However, most of the previously suggested approaches propose an entirely new framework (e.g. [8]) for realizing ubiquitous context-awareness or remain limited to the architectural level (e.g. [9]) without any realistic implementation.…”

Section: Related Workmentioning

confidence: 99%

Bridging Context Management Systems in the ad hoc and mobile environments

Pawar

Boros

Liu

et al. 2009

2009 IEEE Symposium on Computers and Communications

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The pervasive computing world in which the context-aware applications are aimed at is constituted of multiple network environments, e.g. ad hoc, mobile and fixed. There exist specialized Context Management Systems (CMSs) addressing context management needs of every network environment and the existence of a single CMS catering all the network environments does not seem to be plausible. Placing CMS bridges between different types of CMS is a practical approach for exchanging context information in the multiple network environments. Herewith, we focus on a bridge named as Context Discovery Adapter (CDA) which bridges two CMSs namely Mobile Service Platform (targeted towards the mobile network environment) and Ahoy (designed for the ad-hoc network environment), with greatly different properties. CDA enables context discovery and exchange across MSP and Ahoy by means of a mobile device which is capable of participating in both of the CMSs and specialized CDA broker service. The successful working prototype of CDA offers possibility for richer pervasive context-aware applications and a platform for further research.

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Middleware for ubiquitous context-awareness

Cited by 13 publications

References 18 publications

Facilitating agronomic mobile data management in a crop field

Facilitating agronomic mobile data management in a crop field

A coordination framework for dynamic adaptation in ubiquitous systems based on distributed tuple space

Bridging Context Management Systems in the ad hoc and mobile environments

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