A Mobile Context Dissemination Middleware

Gehlen, Guido; Aijaz, Fahad; Sajjad, M.; Walke, Bernhard

doi:10.1109/itng.2007.7

Cited by 6 publications

(3 citation statements)

References 3 publications

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“…In [2] Gehlen et al present a mobile Web Services framework. In an opposite approach to our centralized solution, they suggest a peer-to-peer strategy in which each mobile device publishes context information for others to access it.…”

Section: Related Workmentioning

confidence: 99%

“…Among the different approaches to achieve this goal, context information is one of the most important in mobile devices [2]. In fact, current smartphones, thanks to the wide variety of sensors they are equipped with, their permanent network connectivity and the great diversity of applications they can execute are able to provide richer and better context information than ever before.…”

Section: Introductionmentioning

confidence: 99%

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An Infrastructure to Enable Lightweight Context-Awareness for Mobile Users

Curiel

Lago

2013

Sensors

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Mobile phones enable us to carry out a wider range of tasks every day, and as a result they have become more ubiquitous than ever. However, they are still more limited in terms of processing power and interaction capabilities than traditional computers, and the often distracting and time-constricted scenarios in which we use them do not help in alleviating these limitations. Context-awareness is a valuable technique to address these issues, as it enables to adapt application behaviour to each situation. In this paper we present a context management infrastructure for mobile environments, aimed at controlling context information life-cycle in this kind of scenarios, with the main goal of enabling application and services to adapt their behaviour to better meet end-user needs. This infrastructure relies on semantic technologies and open standards to improve interoperability, and is based on a central element, the context manager. This element acts as a central context repository and takes most of the computational burden derived from dealing with this kind of information, thus relieving from these tasks to more resource-scarce devices in the system.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Infrastructure to Enable Lightweight Context-Awareness for Mobile Users

Curiel

Lago

2013

Sensors

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“…In the field of mobile middleware technology and ubiquitous networking, several efforts have been done to provide multimedia connectivity. We emphasize the latest works of Gehlen et al [11] and Su et al [12]. Both provide mechanisms to design mobile devices applications, but without specifications of the signaling mechanism.…”

Section: Previous Middleware Mobility Workmentioning

confidence: 99%

Energy-Efficient Mobile Middleware for SIP on Ubiquitous Multimedia Systems

García‐Sánchez

García-Sánchez

2008

NETWORKING 2008 Ad Hoc and Sensor Networks, Wireless Networks, Next Generation Internet

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Currently, different technologies provide solutions to successfully resolve the continuity of the service of a mobile host. The employment of a middleware is a common approach to face this issue, supporting also heterogeneity. In addition to the usual requirements of bandwidth, delay, or CPU load, multimedia applications have special features that are still being studied in a mobile scenario, as the intensive energy consumption. Due to all them, current middleware specifications and services do not directly apply. The Session Initialization Protocol (SIP) is the most frequently employed tool to satisfy mobile multimedia requirements. In this paper, we present and validate the design of a service based on middleware and Publish/Subscribe schemes that minimizes the control data exchange introduced by SIP, reducing the energy consumption in the handoff process. It considers all the relevant factors in the audio/video transmission done by different middleware entities, and it supports their profiles (provider or consumer). Using an intermediate element, a modified event server, decouples the communication edges, adding some improvements: asynchronous connection establishment and extension of mobility to all the terminals involved in the connection. The performance offered by the service proposed is also evaluated, and their results further discussed.

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Context-awareness in Healthcare

Varshney

2009

Pervasive Healthcare Computing

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A Mobile Context Dissemination Middleware

Cited by 6 publications

References 3 publications

An Infrastructure to Enable Lightweight Context-Awareness for Mobile Users

An Infrastructure to Enable Lightweight Context-Awareness for Mobile Users

Energy-Efficient Mobile Middleware for SIP on Ubiquitous Multimedia Systems

Context-awareness in Healthcare

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