The medium is the message! And the message was literacy, media democracy and music charts. Mostly one single distinguishable media such as TV, the Web, the radio, or books transmitted the message. No in the age of ubi...
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ISBN:
(纸本)9781605583143
The medium is the message! And the message was literacy, media democracy and music charts. Mostly one single distinguishable media such as TV, the Web, the radio, or books transmitted the message. No in the age of ubiquitous and pervasive computing, where information flows through a plethora of distributed interlinked media - what is the message ambient media will tell us? What means semantic in this context? Which experiences will it open to us? What is content in the age of ambient media? Ambient media are embedded throughout the natural environment of the consumer - in his home, in his car, in restaurants, and on his mobile device. Predominant sample services are smart wallpapers in homes, location based services, RFID based entertainment services for children, or intelligent homes. The goal of this paper is to define semantic ambient media and discuss the contributions to the SAME 2008 workshop. Copyright 2008 ACM.
Leakage power is considered as major concern in deep sub-micrometer VLSI designs. MTCMOS technology was introduced to provide considerable power reduction in standby mode, while maintaining high performance in active ...
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ISBN:
(纸本)9780769530833;0769530834
Leakage power is considered as major concern in deep sub-micrometer VLSI designs. MTCMOS technology was introduced to provide considerable power reduction in standby mode, while maintaining high performance in active mode. However, MTCMOS presents new challenges that require extra design effort. This paper targets the challenges and complexities related to sleep signal distribution in a distributed MTCMOS design. We propose synchronized dual-V,h self-sleep buffer method that eliminates the need for sleep signal distribution and allows easy implementation of MTCMOS wakeup scheduling. Guidelines for designing and sizing the self-sleep buffer circuit are provided. In a 90-nm technology and 2-GHz clock frequency, the self-sleep buffer consumes only 1.46- uWin active mode, while eliminating the sleep distribution network overheads and providing fast, low-energy active- to-standby-to-active transitions.
Cyberenvironment has emerged as a next generation cyberinfrastructure to support 21st century scientific research and education. In this paper, we introduce an on-going cyberenvironment project named e-AIRS, anabbrevi...
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Cyberenvironment has emerged as a next generation cyberinfrastructure to support 21st century scientific research and education. In this paper, we introduce an on-going cyberenvironment project named e-AIRS, anabbreviation of 'e-science aerospace integrated research system'. e-AIRS is a cyberinfrastructure-based portal system, and integrates a set of tools and services to support the aerodynamics engineering processes as a firststep toward building a cyberenvironment for engineering cyber education. The system helps students to understand the full simulation process of aerodynamics engineering. Moreover, the system can be widely applied to other engineering fields too, such as ships, civil engineering, and etc. We conducted a survey of about 230 students about 5 topics at 7 classes of five universities. According to the survey, 94 percent said the system helped to understand the whole process of CFD, and more than 80 percent of the students said e-AIRS environment provided a good functionality, convenience, and user interface.
This keynote paper: presents a 21st century vision of computing; identifies various computing paradigms promising to deliver the vision of computing utilities; defines Cloud computing and provides the architecture f...
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This keynote paper: presents a 21st century vision of computing; identifies various computing paradigms promising to deliver the vision of computing utilities; defines Cloud computing and provides the architecture for creating market-oriented Clouds by leveraging technologies such as VMs; provides thoughts on market-based resource management strategies that encompass both customer-driven service management and computational risk management to sustain SLA-oriented resource allocation; presents some representative Cloud platforms especially those developed in industries along with our current work towards realising market-oriented resource allocation of Clouds by leveraging the 3rd generation Aneka enterprise Grid technology; reveals our early thoughts on interconnecting Clouds for dynamically creating an atmospheric computing environment along with pointers to future community research; and concludes with the need for convergence of competing IT paradigms for delivering our 21st century vision.
Very recently,we proposed the row-monomial distributed orthogonal space-time block codes (DOstBCs) in [1] and showed that the codes achieved approximately twice higher bandwidth efficiency than the repetition-based co...
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Very recently,we proposed the row-monomial distributed orthogonal space-time block codes (DOstBCs) in [1] and showed that the codes achieved approximately twice higher bandwidth efficiency than the repetition-based cooperative strategy. In [1],we assumed that the relays did not have any channel state information (CSI) of the channels from the source to themselves,i.e. the channels of the first hop. However,we notice that this CSI can be readily obtained at the relays without any additional pilot signals or any feedback overhead. Therefore,in this paper,we assume that the relays have partial CSI of the first hop and use this information to construct the codes. We refer to those codes as the row-monomial DOstBCs with channel phase information (DOstBCs-CPI) and derive an upper bound of the data-rate of the codes. This upper bound suggests that the row-monomial DOstBCs-CPI have higher bandwidth efficiency than the rowmonomial DOstBCs in [1],especially in a cooperative network with many relays. Furthermore,we find the actual row-monomial DOstBCs-CPI achieving the upper bound of the data-rate.
With an increasing number of vehicles equipped with embedded computing platforms and advanced wireless technology, general purpose vehicle telematics applications are highly promising. However, the implications of mob...
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Smart Home, this term comprises various approaches, engaged in living and working now and in the future. The objectives of the various approaches range from enhancing comfort in daily life to enabling a more independe...
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ISBN:
(纸本)9780769528472
Smart Home, this term comprises various approaches, engaged in living and working now and in the future. The objectives of the various approaches range from enhancing comfort in daily life to enabling a more independent life for elderly and handicapped people. The term Ubiquitous computing, coined by Mark Weiser describes the ubiquity of computer and information technology. The task of Smart Objects, implanted into everyday items, is to sense the immediate environment using various types of sensors, and to process these information. This functionality assigns a kind of artificial intelligence to common, well known objects and enables comprehensive information-processing and interconnection of almost any kind of everyday object. The (preferably) transparent and hidden technology ranges from Wearable Computers and Smart Clothes to "intelligent" artificial replacements. It supports the user in almost every part of his life by extending his cognition and information processing capacity and tries to compensate for certain handicaps. The challenge regarding smart homes, especially for supporting the elderly and handicapped, is to compensate for handicaps and support the individual in order to give them a more independent life for as long as possible. In this paper, a common architecture for smart home environments is developed, mapped to an experimental setup, and finally evaluated.
Pervasive computing provides an attractive vision for the future of computing where contextual intelligent services will be available anywhere at any time. However how to integrate distributed resources existed among ...
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ISBN:
(纸本)9780769528465
Pervasive computing provides an attractive vision for the future of computing where contextual intelligent services will be available anywhere at any time. However how to integrate distributed resources existed among heterogeneous devices to build pervasive applications that can constantly adapt to the highly dynamic computing environment is still a challenge. By analyzing the pipelining feature within a user task and exploiting the parallelism among ubiquitous processors, we propose UMP-PerComp, a ubiquitous multiprocessor based pipeline processing architecture to support high performance pervasive application development. UMP-PerComp is an integrated comprehensive framework, that makes the development of pervasive applications easier It includes a set of common services such as context management, resource management, service migration, topology management, that help to build applications and directly simplify the task decoupling and service composition. We describe the design and implementation of UMP-PerComp in this paper Besides, we develop a distributed JPEG encoding application successfully on the UMP-PerComp. Our experience confirms that UMP-PerComp is a flexible, scalable and practicable framework with high performance.
Grid computing is an emerging computing paradigm that will have a significant impact on the next generation information infrastructure. Computer networks and the Grid should be integrated together for supporting high-...
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ISBN:
(纸本)9780769528465
Grid computing is an emerging computing paradigm that will have a significant impact on the next generation information infrastructure. Computer networks and the Grid should be integrated together for supporting high-performance applications and a QoS-based network service broker is the key to this integration. In this paper we propose a new approach for describing QoS capabilities of network services and develop a QoS-based broker technology for selecting network services that meet QoS requirements of Grid applications. Our approach for network service description and selection is highly flexible and applicable to networking systems with various implementations. We also propose a system architecture for realizing the QoS-based network service broker within the service-oriented Grid architecture.
NASA ANTS (Autonomous Nano-technology Swarm missions will be operating in the universe, and therefore rely much on high autonomy. This paper presents a novel technology for NASA's ANTS missions, named as Model-Dri...
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ISBN:
(纸本)9780769528465
NASA ANTS (Autonomous Nano-technology Swarm missions will be operating in the universe, and therefore rely much on high autonomy. This paper presents a novel technology for NASA's ANTS missions, named as Model-Driven Autonomic computing. As the foundation for the technology, a new model is constructed for the ANTS system. Exceeding other existent models, the new hierarchical model overcomes the challenges of largeness, complexity, dynamicity and unexpectedness possessed by the ANTS system. Then, the paper exhibits the structure and functions of virtual neuron that is basic unit together with the model for the model-driven autonomic technology in ANTS missions. The paper also deploys self-configuration, self-healing, self-optimization and self-protection for ANTS. A case study, examples and simulations are illustrated
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