Efficient identification of tags has been an essential operation for Radio Frequency IDentification (RFID) systems. In this paper, we consider the crucial problem of collecting all tags in a large-scale system through...
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Mirror-based systems are object-oriented reflective architectures built around a set of design principles that lead to reflective APIs which foster a high degree of reusability, loose coupling with base-level objects ...
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Access control is a vital security mechanism in today's operating systems and the security policies dictating the security relevant behaviors is lengthy and complex for example in Security-Enhanced Linux (SELinux)...
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In this paper,an indoor layout sensing and localization system with testbed in the 60-GHz millimeter wave(mmWave)band,named mmReality,is *** mmReality system consists of one transmitter and one mobile receiver,both wi...
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In this paper,an indoor layout sensing and localization system with testbed in the 60-GHz millimeter wave(mmWave)band,named mmReality,is *** mmReality system consists of one transmitter and one mobile receiver,both with a phased array and a single radio frequency(RF)*** reconstruct the room layout,the pilot signal is delivered from the transmitter to the receiver via different pairs of transmission and receiving beams,so that multipath signals in all directions can be *** spatial smoothing and the two-dimensional multiple signal classification(MUSIC)algorithm are applied to detect the angle-of-departures(AoDs)and angle-of-arrivals(AoAs)of propagation ***,the technique of multi-carrier ranging is adopted to measure the path ***,with the measurements of the receiver in different locations of the room,the receiver and virtual transmitters can be pinpointed to reconstruct the room *** show that the reconstructed room layout can be utilized to localize a mobile device via the AoA spectrum.
The trend toward ubiquitous deployment of electronic devices demands novel low maintenance power schemes to decrease the burden of maintaining such a large number of devices. In this paper, we propose Interaction-base...
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An important aspect of system support for mobile computing involves alleviating the issues related to programming the underlying distributed system. Our approach to dealing with these issues is by means of programming...
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Handwritten documents generated in our day-to-day office work, class room and other sectors of society carry vital information. Automatic processing of these documents is a pipeline of many challenging steps. The very...
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Visual Secret Sharing (VSS) is a technique used for sharing secret images between users. The existing VSS schemes reconstruct the original secret image as a halftone image with only a 50% contrast. The Randomized Visu...
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With single thread performance starting to plateau, HW architects have turned to chip level multiprocessing (CMP) to increase processing power. All major microprocessor companies are aggressively shipping multi-core p...
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ISBN:
(纸本)1595936025
With single thread performance starting to plateau, HW architects have turned to chip level multiprocessing (CMP) to increase processing power. All major microprocessor companies are aggressively shipping multi-core products in the mainstream computing market. Moore's law will largely be used to increase HW thread-level parallelism through higher core counts in a CMP environment. CMPs bring new challenges into the design of the software system stack. In this tutorial, we talk about the shift to multi-core processors and the programming implications. In particular, we focus on transactional programming. Transactions have emerged as a promising alternative to lock-based synchronization that eliminates many of the problems associated with lock-based synchronization. We discuss the design of both hardware and software transactional memory and quantify the tradeoffs between the different design points. We show how to extend the Java and C languages with transactional constructs, and how to integrate transactions with compiler optimizations and the language runtime (e.g., memory manager and garbage collection).
In order to support the development of complex products, modeling tools and processes need to support co-design of software and hardware in an integrated way. Modelica is the major object-oriented mathematical modelin...
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In order to support the development of complex products, modeling tools and processes need to support co-design of software and hardware in an integrated way. Modelica is the major object-oriented mathematical modeling language for component-oriented modeling of complex physical systems and UML is the dominant graphical modeling notation for software. In this paper we propose ModelicaML UML profile as an integration of Modelica and UML. The profile combines the major UML diagrams with Modelica graphic connection diagrams and is based on the System Modeling Language (SysML) profile.
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