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Reality over Web:pervasive computing Meets the Web

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Tsinghua Science and Technology 2013年第6期18卷 568-576页

作者： Muthucumaru Maheswaran Devarun Bhattacharya School of Computer Science McGill University

Reality over Web （ROW） is a novel concept, where a window on the web corresponds to a window onto a real space. Once the correspondence is established, users should be able to interact or manipulate the objects or people in the real space through the web window. In this paper, we introduce the RoW concept and highlight the principles that govern its design and implementation. A system architecture for realizing the RoW concept is described along with a proof-of-concept prototype that implements portions of the RoW concept. One essential part of an RoW implementation is accurate Iocationing of objects and people in a video frame. The Iocationing problem becomes particularly challenging because we want to reuse existing infrastructure as much as possible. We developed a high-frequency sound-based Iocationing scheme and implemented it on the prototype. The results from initial experiments performed on the Iocationing scheme are reported here.

关键词： Internet-of-things Iocationing pervasive computing telepresence web web-of-things

Trust Based pervasive computing

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1477-1480页

作者： LI Shiqun Shane Balfe ZHOU Jianying CHEN Kefei School of Electronic Information and Electeical Engineering Shanghai Jiao Tong University Shanghai 200240 China Royal Holloway University of London Egham Surrey TW20 0EX United Kingdom Institute for Infocomm Research 21 Heng Mui Keng Terrace Singapore 119613 Singapore

pervasive computing environment is a distributed and mobile space. Trust relationship must be established and ensured between devices and the systems in the pervasive computing environment. The trusted computing （TC） technology introduced by trusted computing group is a distributed-system-wide approach to the provisions of integrity protection of resources. The TC＇s notion of trust and security can be described as conformed system behaviors of a platform environment such that the conformation can be attested to a remote challenger. In this paper the trust requirements in a pervasive/ubiquitous environment are analyzed. Then security schemes for the pervasive computing are proposed using primitives offered by TC technology.

关键词： trusted computing pervasive computing pervasive computing security

Decision Making in Internet of Vehicles Using pervasive Trusted computing Scheme

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Computers, Materials & Continua 2021年第8期68卷 2755-2769页

作者： Geetanjali Rathee Razi Iqbal Adel Khelifi Department of Computer Science and Engineering Jaypee University of Information TechnologyWaknaghatSolan173234Himachal PradeshIndia Department of Computer Information Systems University of Fraser ValleyCanada Department of Computer Science and IT Abu Dhabi UniversityUnited Arab EmiratesUAE

pervasive schemes are the significant techniques that allow intelligent communication among the devices without any human *** Internet of Vehicles(IoVs)has been introduced as one of the applications of pervasive computing that addresses the road safety *** participating within the IoV are embedded with a wide range of sensors which operate in a real time environment to improve the road safety *** mechanisms have been proposed which allow automatic actions based on uncertainty of sensory and managed *** to the lack of existing transportation integration schemes,IoV has not been completely explored by business *** order to tackle this problem,we have proposed a novel trusted mechanism in IoV during communication,sensing,and record *** proposed method uses trust based analysis and subjective logic functions with the aim of creating a trust environment for vehicles to *** addition,the subjective logic function is integrated with multi-attribute SAW scheme to improve the decision metrics of authenticating *** trust analysis depends on a variety of metrics to ensure an accurate identification of legitimate vehicles embedded with IoT devices *** proposed scheme is determined and verified rigorously through various IoT devices and decision making metrics against a baseline *** simulation results show that the proposed scheme leads to 88%improvement in terms of better identification of legitimate nodes,road accidents and message alteration records during data transmission among vehicles as compared to the baseline approach.

关键词： pervasive computing vehicular networks security trust decision schemes trusted internet of vehicles big data

Mobile Ad Hoc Networking:An Essential Technology for pervasive computing

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Mobile Ad Hoc Networking:An Essential Technology for Pervasi...

AocML： A Domain-Specific Language for Model-Driven Development of Activity-Oriented Context-Aware Applications

2001 International Conferences on Info-tech and Info-net

作者： Jun-Zhao Sun MediaTeam Machine Vision and Media Processing UnitInfotech Oulu P.O.Box 4500FIN-90014 University of OuluFinland

＜正＞In the near future,a pervasive computing environment can be expected based on the recent progresses and advances in computing and communication *** generation of mobile communications will include both prestigious infrastructured wireless networks and novel infrastructureless mobile ad hoc networks（MANETs）.A MANET is a collection of wireless nodes that can dynamically form a network to exchange information without using any pre-existing fixed network *** special features of MANET bring this technology great opportunities together with severe *** paper describes the fundamental problems of ad hoc networking by giving its related research background including the concept,features,status,and applications of *** of the technical challenges MANET poses are also presented,based on which the paper points out some of the key research issues for ad hoc networking technology that are expected to promote the development and accelerate the commercial applications of the MANET *** attention is paid on network layer routing strategy of MANET and key research issues include new X-cast routing algorithms,security ＆ reliability schemes,QoS model,and mechanisms for interworking with outside IP networks.

关键词： Mobile Communications Wireless Networks Ad hoc Networking pervasive computing Routing Algorithm

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Journal of Computer Science & Technology 2018年第5期33卷 900-917页

作者： Xuan-Song Li Xian-Ping Tao Wei Song Kai Dong School of Computer Science and Engineering Nanjing University of Science and Technology Nanfing 210093 China State Key Laboratory for Novel Software Technology Nanjing University Nanjing 210023 China School of Computer Science and Engineering Southeast University Nanjing 211189 China

Activity-oriented context-aware （AOCA） applications are representative in pervasive computing. These appli- cations recognize daily-life human activities, perceive the environment status related to the activities, and react to ensure the smooth performance of the activities. Existing research proposed a specific light-weight, incremental method to support the development of such applications; however it is not easy to learn and use. This paper aims to facilitate the development of such applications and improve the productivity of developers. We propose AocML, a textual domain-specific language which provides a high-level abstraction of AOCA applications. Specifically, we first show the software model of AOCA applications and the abstract syntax of AocML. Then, we introduce the concrete syntax of AocML. We also implement the tools for AocML, including the development environment as well as the generation of Java code and ontology specification. Moreover, we use a case study and evaluation to demonstrate the advantages of AocML.

关键词： pervasive computing context-awareness model-driven development domain-specific language

Towards a programming framework for activity-oriented context-aware applications

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Frontiers of Computer Science 2017年第6期11卷 987-1006页

作者： Xuansong LI Xianping TAO Jian LU State Key Laboratory for Novel Software Technology Department of Computer Science and Technology Nanjing University Nanjing 210000 China

Context-aware system is an emerging research area in recent years. Context plays an important role in these systems. In most existing work, context is treated as all rel- ative elements in the environment of an application, and the scope of context is predefined by the developers during the development. However, it is difficult to analyze, specify, and organize everything in the environment accurately and com- pletely; and even when it is possible, the developed applica- tions are difficult to extend or modify as the requests for en- vironment may change over time. In this paper, we focus on activity-oriented context-aware （AOCA） applications where the requests for environment are highly dependent on user activities, and propose a programming framework for devel- oping AOCA applications. In particular, we first present a concept model for describing the notions of activity-oriented context. Next, based on the concept model, we describe the details of the programming framework as well as a develop- ment tool. Moreover, we provide a platform to support the runtime of AOCA applications, and demonstrate the advan- tages of our programming framework through experimental evaluations.

关键词： pervasive computing context-awareness,context-aware programming framework activity-orientedcontext

Middleware for Wireless Sensor Networks:A Survey

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Journal of Computer Science & Technology 2008年第3期23卷 305-326页

作者：王苗苗曹建农李京 Sajal K.Dasi Department of Computer Science The University of Science and Technology of China Internets and Mobile computing Lab Department of ComputingThe Hong Kong Polytechnic University Department of Computer Science and Engineering The University of Texas at Arlington

Wireless Sensor Networks （WSNs） have found more and more applications in a variety of pervasive computing environments. However, how to support the development, maintenance, deployment and execution of applications over WSNs remains to be a nontrivial and challenging task, mainly because of the gap between the high level requirements from pervasive computing applications and the underlying operation of WSNs. Middleware for WSN can help bridge the gap and remove impediments. In recent years, research has been carried out on WSN middleware from different aspects and for different purposes. In this paper, we provide a comprehensive review of the existing work on WSN middleware, seeking for a better understanding of the current issues and future directions in this field. We propose a reference framework to analyze the functionalities of WSN middleware in terms of the system abstractions and the services provided. We review the approaches and techniques for implementing the services. On the basis of the analysis and by using a feature tree, we provide taxonomy of the features of WSN middleware and their relationships, and use the taxonomy to classify and evaluate existing work. We also discuss open problems in this important area of research.

关键词： middleware wireless sensor network pervasive computing

Golden age:on multi-source software update propagation in pervasive networking environments

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Science China(Information Sciences) 2013年第8期56卷 104-118页

作者： LI WenZhong FU XiaoMing CHAN Edward LU SangLu CHEN DaoXu State Key Laboratory for Novel Software Technology Nanjing University Institute of Computer Science University of Goettingen Department of Computer Science City University of Hong Kong

With the development of Internet technology,a large portion of computer softwares appear to run in a network-oriented,distributed-deployed,and self-evolving *** emerging wireless communication technologies broaden the usage of software in mobile platforms,enabling the pervasive computing paradigm,where people can access information/service anytime and anywhere with portable *** the pervasive networking environment where mobile devices operate on the ad hoc mode and communicate with each other opportunistically without wireless infrastructures,distributing the evolving software updates to a set of mobile terminals is a challenging *** this paper,we address the problem of distributing multiple software updates in pervasive networks with storage and bandwidth constraints,and propose age-based solutions to tackle this *** basic idea is to introduce different age-based priority mechanisms for propagation decision making in order to resolve the contention of wireless bandwidth and storage *** investigate a number of update propagation strategies including random spread,youngest age,and golden *** models are derived to analyse the performance of the proposed *** is shown that the golden age strategy has the burst effect,which could be used to enhance the efficiency of software update *** principles for choosing golden age values are proposed aiming to optimize different utility *** simulations under various network parameters show that the golden age strategy outperforms other strategies for multi-source software updates propagation.

关键词： pervasive computing software update propagation mobile ad hoc networks

Context-Based Mobile User Interface

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Journal of Computer and Communications 2016年第9期4卷 1-9页

作者： Mao Zheng Sihan Cheng Qian Xu Department of Computer Science University of Wisconsin-La Crosse La Crosse WI USA

Context awareness is increasingly gaining applicability in interactive ubiquitous mobile computing systems. Each context-aware application has its own set of behaviors to react to context modifications. Hence, every software engineer needs to clearly understand the goal of the development and to categorize the context in the application. We incorporate context-based modifications into the appearance or the behavior of the interface, either at the design time or at the run time. In this paper, we present application behavior adaption to the context modification via a context-based user interface in a mobile application. We are interested in a context-based user interface in a mobile device that is automatically adapted based on the context information. We use the adaption tree, named in our methodology, to represent the adaption of mobile device user interface to various context information. The context includes the user’s domain information and dynamic environment changes. Each path in the adaption tree, from the root to the leaf, presents an adaption rule. An e-commerce application is chosen to illustrate our approach. This mobile application was developed based on the adaption tree in the Android platform. The automatic adaption to the context information has enhanced human-computer interactions.

关键词： pervasive computing Context-Aware Systems Mobile User Interface Adaption Tree