A Theoretical Framework for Ubiquitous Computing

Hashemi, Mahdi; Sadeghi‐Niaraki, Abolghasem

doi:10.4018/ijapuc.2016040101

Cited by 9 publications

(4 citation statements)

References 65 publications

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“…The brain of a smart environment is a context-aware system. The system receives contextual information, analyzes it, and assigns it an activity label (Alegre et al, 2016;Hashemi and Sadeghi-Niaraki, 2016;Kirsch-Pinheiro, 2023). A context-aware system communicates with sensors and services in a smart environment and processes the context using machine-learning techniques (Ogbuabor et al, 2022).…”

Section: Evidence In Literaturementioning

confidence: 99%

Augmenting context with power information for green context-awareness in smart environments

Mahmud,

Hussain

2024

Front. Comput. Sci.

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The increase in the use of smart devices has led to the realization of the Internet of Everything (IoE). The heart of an IoE environment is a Context-Aware System that facilitates service discovery, delivery, and adaptation based on context classification. The context has been defined in a domain-dependent way, traditionally. The classical models of context have been focused on rich context and lack Cost of Context (CoC) that can be used for decision support. The authors present a philosophy-inspired mathematical model of context that includes confidence in activity classification of context, the actions performed, and the power information. Since a single recurring activity can lead to distinct actions performed at different times, it is better to record the actions. The power information includes the power consumed in the complete context processing and is a quality attribute of the context. Power consumption is a useful metric as CoC and is suitable for power-constrained context awareness. To demonstrate the effectiveness of the proposed work, example contexts are described, and the context model is presented mathematically in this study. The context is aggregated with power information, and actions and confidence on the classification outcome lead to the concept of situational context. The results show that the context gathered through sensor data and deduced through remote services can be made more rich with CoC parameters.

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Section: Evidence In Literaturementioning

confidence: 99%

Augmenting context with power information for green context-awareness in smart environments

Mahmud,

Hussain

2024

Front. Comput. Sci.

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“…"Ubiquitous" means having access to any data or services at any time and in any place via any device through the network [22,23]. The idea of U-cities is implemented by the process of ubiquitous computing, which is integrating computing technology into objects seamlessly whilst being invisible to the end-user.…”

Section: Problem Statementmentioning

confidence: 99%

Vulnerability Assessment of Ubiquitous Cities Using the Analytic Hierarchy Process

2020

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Urbanization is a challenge faced by most countries worldwide and leads to several problems. Due to rapid communication capabilities, conforming the megacities into Ubiquitous cities (U-cities) seems to be a potential solution to mitigate the problems caused by urbanization. Extensive reliance and dependencies of U-cities on information and communication technologies (ICTs) bring forth a new set of risks and vulnerabilities to these megacities. This research investigates the vulnerabilities of ICTs against man-made and natural hazards in a systematic way using the Analytic Hierarchy Process. The study identifies the vulnerabilities of different ICTs in U-cities and helps in improving the system’s resistivity against various hazards. The task is performed by evaluating the level of disruption on the different technologies and areas under the identified man-made and natural hazards. The research provides an insight into the working mechanisms of involved ICTs. It also helps to manage U-cities with more secure and sustainable services. The research identified that the new ICTs-based hazards have emerged and have become among the most influential hazards. The research has concluded that the vulnerabilities of U-cities are significantly different from that of conventional cities and need further studies to develop further understandings. The research recommends similar vulnerability studies for regional areas as well.

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“…The objective of context awareness is to provide better services and applications to the users [21][22][23][24]. This includes discovering services among available options within an environment as well as fine-tuning the selected services.…”

Section: Context Awarenessmentioning

confidence: 99%

Power Profiling of Context Aware Systems: A Contemporary Analysis and Framework for Power Conservation

Mahmud

Hussain

Yang

2018

Wireless Communications and Mobile Computing

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With the advent of smart, inexpensive devices and a highly connected world, a need for smart service discovery, delivery, and adaptation has appeared. This interconnection is composed of sensors within devices or placed externally in the surrounding environment. Our research addresses this need through a context aware system, which adapts to the users’ context. Given that the devices are mobile and battery operated, the main challenge in a context awareness approach is power conservation. The devices are composed of small sensors that consume power in the order of a few mW. However, their consumptions increase manifold during data processing. There is a need to conserve power while delivering the requisite functionality of the context aware system. Therefore, this feature is termed as ‘power awareness.’ In this paper, we describe different power awareness techniques and compare them in terms of their conservation effectiveness. In addition, based on the investigations and comparison of the results, a power aware framework is proposed for a context aware system.

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A Theoretical Framework for Ubiquitous Computing

Cited by 9 publications

References 65 publications

Augmenting context with power information for green context-awareness in smart environments

Augmenting context with power information for green context-awareness in smart environments

Vulnerability Assessment of Ubiquitous Cities Using the Analytic Hierarchy Process

Power Profiling of Context Aware Systems: A Contemporary Analysis and Framework for Power Conservation

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