Springer Healthcare

Displaying 1-40 of 701 results

  • White Papers // Aug 2014

    Competitive Location in Cognitive Radio Networks

    In this paper, the authors address the problem of strategic base stations placement in cognitive radio networks. They consider a primary user, operating on the frequency channels of a primary network, and an operator (a leader) facing the competition of a second operator (a follower). These operators are willing to...

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  • White Papers // Jul 2014

    Geometrical Localization Algorithm for 3-D Wireless Sensor Networks

    In this paper, the authors propose an efficient range free localization scheme for large scale three dimensional wireless sensor networks. Their system environment consists of two type of sensors, randomly deployed static sensors and global positioning system equipped moving sensors. These moving anchors travels across the network field and broadcast...

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  • White Papers // Jun 2014

    A Comparative Study on Resource Allocation and Energy Efficient Job Scheduling Strategies in Large-Scale Parallel Computing Systems

    In the large-scale parallel computing environment, resource allocation and energy efficient techniques are required to deliver the Quality of Services (QoS) and to reduce the operational cost of the system. Because the cost of the energy consumption in the environment is a dominant part of the owner's and user's budget....

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  • White Papers // Jun 2014

    Phoenix: DGA-Based Botnet Tracking and Intelligence

    Modern botnets rely on Domain-Generation Algorithms (DGAs) to build resilient command-and-control infrastructures. Given the prevalence of this mechanism, recent paper has focused on the analysis of DNS traffic to recognize botnets based on their DGAs. While previous paper has concentrated on detection, the authors focus on supporting intelligence operations. They...

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  • White Papers // Jun 2014

    A Survey and Taxonomy on Energy Efficient Resource Allocation Techniques for Cloud Computing Systems

    In a cloud computing paradigm, energy efficient allocation of different virtualized ICT resources (servers, storage disks, and networks, and the like) is a complex problem due to the presence of heterogeneous application (e.g., content delivery networks, MapReduce, web applications, and the like) workloads having contentious allocation requirements in terms of...

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  • White Papers // Jun 2014

    Dual-Access Way-Prediction Cache for Embedded Systems

    Way-Prediction (WP) caches have advantages of reducing power consumption and latency for highly associative data caches and thus are favorable for embedded systems. In this paper, the authors propose an enhanced way-prediction cache, Dual-Access Way-Prediction (DAWP) cache, to cope with the weakness of the WP cache. The prediction logic designed...

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  • White Papers // May 2014

    Instruction-Level Steganography for Covert Trigger-Based Malware

    Trigger-based malware is designed to remain dormant and undetected unless a specific trigger occurs. Such behavior occurs in prevalent threats such as backdoors and environment-dependent (targeted) malware. Currently, trigger-based malicious code is often hidden in rarely exercised code paths in benign host binaries, and relies upon a lack of code...

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  • White Papers // Apr 2014

    CubeLoad: A Parametric Generator of Realistic OLAP Workloads

    Differently from OLTP workloads, OLAP workloads are hardly predictable due to their inherently extemporary nature. Besides, obtaining real OLAP workloads by monitoring the queries actually issued in companies and organizations is quite hard. On the other hand, hardware and software benchmarking in the industrial world, as well as comparative evaluation...

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  • White Papers // Apr 2014

    WABRM: A Work-Load Aware Balancing and Resource Management Framework for Swift on Cloud

    Fueled by increasing demand of big data processing, distributed storage systems have been more and more widely used by enterprises. However, in these systems, few storage nodes holding enormous amount of hotspot data could become bottlenecks. This stems from the fact that most typical distributed storage systems mainly provide data...

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  • White Papers // Apr 2014

    An Overview of the Commercial Cloud Monitoring Tools: Research Dimensions, Design Issues, and State-of-the-Art

    Cloud monitoring activity involves dynamically tracking the Quality of Service (QoS) parameters related to virtualized resources (e.g., VM, storage, network, appliances, etc.), the physical resources they share, the applications running on them and data hosted on them. Applications and resources configuration in cloud computing environment is quite challenging considering a...

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  • White Papers // Apr 2014

    Evaluation Methodology for Data Communication-Aware Application Partitioning

    Heterogeneous multicore architectures appear to be a promising solution to the ever-increasing computational demands of applications in embedded as well as high-performance computing domains. Nevertheless, inefficient application partitioning for such systems may result in a considerable reduction in the anticipated performance improvement. Consequently, proper mechanisms are required to evaluate quality...

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  • White Papers // Mar 2014

    Hierarchical Approach to Optimization of Parallel Matrix Multiplication on Large-Scale Platforms

    Many state-of-the-art parallel algorithms, which are widely used in scientific applications executed on high-end computing systems, were designed in the twentieth century with relatively small-scale parallelism in mind. Indeed, while in 1990s a system with few hundred cores was considered a powerful supercomputer; modern top supercomputers have millions of cores....

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  • White Papers // Feb 2014

    Unmixing-Based Content Retrieval System for Remotely Sensed Hyperspectral Imagery on GPUs

    In this paper the authors present a new unmixing-based retrieval system for remotely sensed hyperspectral imagery. The need for this kind of system is justified by the exponential growth in the volume and number of remotely sensed data sets from the surface of the earth. This is particularly the case...

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  • White Papers // Jan 2014

    Measuring Precision of Modeled Behavior

    Conformance checking techniques compare observed behavior (i.e., event logs) with modeled behavior for a variety of reasons. For example, discrepancies between a normative process model and recorded behavior may point to fraud or inefficiencies. The resulting diagnostics can be used for auditing and compliance management. Conformance checking can also be...

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  • White Papers // Jan 2014

    Transactional Support for Adaptive Indexing

    Adaptive indexing initializes and optimizes indexes incrementally, as a side effect of query processing. The goal is to achieve the benefits of indexes while hiding or minimizing the costs of index creation. However, index-optimizing side effects seem to turn read-only queries into update transactions that might, for example, create lock...

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  • White Papers // Jan 2014

    DynTunKey: A Dynamic Distributed Group Key Tunneling Management Protocol for Heterogeneous Wireless Sensor Networks

    Wireless Sensor Networks (WSNs) are being used for many applications ranging from mobile target surveillance to intelligent home networking. Due to the sensitive nature of the data transmitted by these applications, appropriate protection mechanisms are needed to prevent attackers from exploiting the weaknesses of the radio links. In this paper,...

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  • White Papers // Jan 2014

    ADLU: A Novel Anomaly Detection and Location-Attribution Algorithm for UWB Wireless Sensor Networks

    Wireless Sensor Networks (WSNs) are gaining more and more interest in the research community due to their unique characteristics. Besides energy consumption considerations, security has emerged as an equally important aspect in their network design. This is because WSNs are vulnerable to various types of attacks and to node compromises,...

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  • White Papers // Jan 2014

    Big Data: A Survey

    In this paper, the authors review the background and state-of-the-art of big data. They first introduce the general background of big data and review related technologies, such as could computing, Internet of Things, data centers, and Hadoop. They then focus on the four phases of the value chain of big...

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  • White Papers // Jan 2014

    InterCloud RAIDer: A Do-It-Yourself Multi-Cloud Private Data Backup System

    In this paper, the authors introduce InterCloud RAIDer, which realizes a multi-cloud private data backup system by composing a data deduplication technique to reduce the overall storage overhead, erasure coding to achieve redundancy at low overhead, which is dispersed across multiple cloud services to realize fault-tolerance against individual service providers,...

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  • White Papers // Dec 2013

    A Decision Framework for Placement of Applications in Clouds That Minimizes Their Carbon Footprint

    Cloud computing gives users much freedom on where they host their computation and storage. However, the CO2 emission of a job depends on the location and the energy efficiency of the data centers where it is run. The authors developed a decision framework that determines to move computation with accompanying...

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  • White Papers // Dec 2013

    An Improved Task Assignment Scheme for Hadoop Running in the Clouds

    Now-a-days, data-intensive problems are so prevalent that numerous organizations in various industries have to face them in their business operation. It is often crucial for enterprises to have the capability of analyzing large volumes of data in an effective and timely manner. MapReduce and its open-source implementation Hadoop dramatically simplified...

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  • White Papers // Dec 2013

    Data Management in Cloud Environments: NoSQL and NewSQL Data Stores

    Advances in web technology and the proliferation of mobile devices and sensors connected to the Internet have resulted in immense processing and storage requirements. Cloud computing has emerged as a paradigm that promises to meet these requirements. This paper focuses on the storage aspect of cloud computing, specifically on data...

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  • White Papers // Dec 2013

    Service Selection in Web Service Compositions Optimizing Energy Consumption and Service Response Time

    A challenging task in web service composition is the runtime binding of a set of interconnected abstract services to concrete ones. This question, formulated as the service selection problem, has been studied in the area of service compositions implementing business processes. Despite the abundance of work on this topic, few...

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  • White Papers // Dec 2013

    Catching Modern Botnets Using Active Integrated Evidential Reasoning

    Botnets are now recognized as one of the major security threats to start various security attacks (e.g., spamming, DDoS). Although substantial research has been done towards botnet detection, it is becoming much more difficult today, especially for highly polymorphic, intelligent and stealthy modern botnets. Traditional botnet detection (e.g., signature, anomaly...

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  • White Papers // Dec 2013

    Agile Methods for Embedded Systems Development - A Literature Review and a Mapping Study

    There is a wide area of applications that use embedded systems, and the number of such systems keeps growing. The required functionality and complexity of embedded systems are also constantly increasing, and development of such products is becoming increasingly harder. This requires new thinking on the product development processes, and...

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  • White Papers // Nov 2013

    An Elastic Virtual Infrastructure for Research Applications (ELVIRA)

    Cloud computing infrastructures provide a way for researchers to source the computational and storage resources they require to conduct their work and to collaborate within distributed research teams. The authors provide an overview of a cloud-based elastic virtual infrastructure for research applications that they have established to provide researchers with...

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  • White Papers // Nov 2013

    Towards Full Network Virtualization in Horizontal IaaS Federation: Security Issues

    Horizontal IaaS federation exploits datacenter for federation of IaaS provider by supplying virtual nodes (e.g. virtual machines, virtual switches, and virtual routers) and virtual links. Today's datacenters for cloud computing do not supply full network virtualization in terms of user-level network management and user-agreed network topology. The datacenters lack the...

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  • White Papers // Nov 2013

    Efficient and Highly Portable Deterministic Multithreading (DetLock)

    In this paper, the authors present DetLock, a runtime system to ensure deterministic execution of multithreaded programs running on multicore systems. DetLock does not rely on any hardware support or kernel modification to ensure determinism. For tracking the progress of the threads, logical clocks are used. Unlike previous approaches, which...

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  • White Papers // Nov 2013

    Securing Cloud Using Third Party Threaded IDS

    Cloud computing is universal, staying anywhere in the world user can access the cloud applications. Mainly cloud computing will provide services to the users using Internet. Cloud storage services offer user-friendly, easily accessible and money-saving ways of storing and automatically backing up arbitrary data. These services are available on-demand on...

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  • White Papers // Nov 2013

    A Survey on Securing the Virtual Cloud

    In this paper, the authors present a survey and analysis of the current security measures implemented in cloud computing and the hypervisors that support it. The viability of an efficient virtualization layer has led to an explosive growth in the cloud computing industry, exemplified by Amazon's Elastic Cloud, Apple's iCloud,...

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  • White Papers // Nov 2013

    A Routing Framework for Energy Harvesting Wireless Nanosensor Networks in the Terahertz Band

    Wireless NanoSensor Networks (WNSNs) will allow novel intelligent nanomaterial-based sensors, or nanosensors, to detect new types of events at the nanoscale in a distributed fashion over extended areas. Two main characteristics are expected to guide the design of WNSNs architectures and protocols, namely, their Terahertz Band wireless communication and their...

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  • White Papers // Nov 2013

    AppaaS: Offering Mobile Applications as a Cloud Service

    With the huge number of offerings in the mobile application market, the choice of mobile applications that best fit particular objectives is challenging. Therefore, there is a demand for a platform elevating the momentum of mobile applications that can adapt their behavior according to the user's context. This paper proposes...

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  • White Papers // Nov 2013

    Efficient Parallel Spectral Clustering Algorithm Design for Large Data Sets Under Cloud Computing Environment

    Spectral clustering algorithm has proved be more effective than most traditional algorithms in finding clusters. However, its high computational complexity limits its effect in actual application. This paper combines the spectral clustering with MapReduce, through evaluation of sparse matrix Eigen-value and computation of distributed cluster, puts forward the improvement ideas...

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  • White Papers // Oct 2013

    Analytic Performance Modeling and Optimization of Live VM Migration

    Cloud computing is based on largely distributed virtual environments that provide Infrastructure-as-a-Service (IaaS) services to consumers allowing them to lease computing resources that scale to their needs. These services rely on virtualization as an important technology that facilitates dynamic resource management to meet Service Level Agreements (SLA) of disparate applications...

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  • White Papers // Oct 2013

    Linearly Homomorphic Structure-Preserving Signatures and their Applications

    Structure-Preserving Signatures (SPS) are signature schemes where messages, signatures and public keys all consist of elements of a group over which a bilinear map is efficiently computable. This property makes them useful in cryptographic protocols as they nicely compose with other algebraic tools (like the celebrated groth-sahai proof systems). In...

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  • White Papers // Oct 2013

    Efficient Cryptosystems from 2k-th Power Residue Symbols

    In this paper, the authors introduced a new generalization of the cryptosystem. The so-obtained cryptosystems are shown to be secure under the quadratic residuosity assumption. Further, they enjoy a number of useful features including fast decryption, optimal ciphertext expansion, and homomorphic property. The authors believe that their proposal is the...

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  • White Papers // Oct 2013

    An Agents and Artifacts Approach to Distributed Data Mining

    In this paper the authors propose a novel Distributed Data Mining (DDM) approach based on the agents and artifacts paradigm, as implemented in CArtAgO, where artifacts encapsulate data mining tools, inherited from Weka, that agents can use while engaged in collaborative, distributed learning processes. Target hypothesis are currently constrained to...

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  • White Papers // Oct 2013

    A Scalable Scheme for Privacy-Preserving Aggregation of Time-Series Data

    Suppose that a set of multiple users uploads in every time period encrypted values of some data. The considered problem is how an untrusted data aggregator can compute the sum of all users' values but nothing more. However, as advocated by the authors, the proposed encryption scheme suffers from some...

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  • White Papers // Sep 2013

    Differentially Private Set-Valued Data Release Against Incremental Updates

    Publication of the private set-valued data will provide enormous opportunities for counting queries and various data mining tasks. Compared to those previous methods based on partition-based privacy models (e.g., k-anonymity), differential privacy provides strong privacy guarantees against adversaries with arbitrary background knowledge. However, the existing solutions based on differential privacy...

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  • White Papers // Sep 2013

    Repairing Event Logs Using Timed Process Models

    Process mining aims to infer meaningful insights from process-related data and attracted the attention of practitioners, tool-vendors, and researchers in recent years. Traditionally, event logs are assumed to describe the as-is situation. But this is not necessarily the case in environments where logging may be compromised due to manual logging....

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  • White Papers // Aug 2007

    Serial and Parallel FPGA-Based Variable Block Size Motion Estimation Processors

    H.264/AVC is the latest video coding standard adopting Variable Block size Motion Estimation (VBS-ME), quarter-pixel accuracy, motion vector prediction and multi-reference frames for motion estimation. These new features result in much higher computation requirements than previous coding standards. In this paper, the authors propose a novel Most Significant Bit (MSB)...

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  • White Papers // Nov 2010

    An Evaluation Method of Outsourcing Services for Developing an Elastic Cloud Platform

    To gain and retain competitive advantages in a competitive business arena, a business cloud-computing platform should continuously strive to offer new services and remain competitive. Unfortunately, it becomes more and more recognized by the industry that a cloud-computing platform could not cover all aspects of IT layers engaged in infrastructure,...

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  • White Papers // Sep 2009

    Clustering with XCS and Agglomerative Rule Merging

    In this paper, the authors present a more effective approach to clustering with eXtended Classifier System (XCS) which is divided into two phases. The first phase is the XCS learning process with rule compact, during which they alter the XCS mechanisms and propose a new way to calculate rewards. After...

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  • White Papers // Jul 2008

    Preliminary Analysis of the Cell BE Processor Limitations for Sequence Alignment Applications

    The fast growth of bioinformatics field has attracted the attention of computer scientists in the last few years. At the same time the increasing database sizes require greater efforts to improve the computational performance. From a computer architecture point of view, the authors intend to investigate how bioinformatics applications can...

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  • White Papers // Aug 2007

    Parallel Memory Architecture for TTA Processor

    A conflict resolving parallel data memory system for Transport Triggered Architecture (TTA) is described. The architecture is generic and reusable to support various application specific designs. With parallel memory, more area and power consuming multi-port memory can be replaced with single-port memory modules. Number of ports can be increased over...

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  • White Papers // Aug 2007

    Resource Conflict Detection in Simulation of Function Unit Pipelines

    Processor simulators are important parts of processor design toolsets in which they are used to verify and evaluate the properties of the designed processors. While simulating architectures with independent function unit pipelines using simulation techniques that avoid the overhead of instruction bit-string interpretation, such as compiled simulation, the simulation of...

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  • White Papers // Jan 2010

    Mining Dynamic Document Spaces with Massively Parallel Embedded Processors

    Currently, the authors investigate future document management services. One of these services is accessing dynamic document spaces, i.e. improving the access to document spaces which are frequently updated. This process is rather computational intensive. This paper describes the research conducted on software development for massively parallel processors. A prototype has...

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  • White Papers // Jul 2009

    A Generic Design Flow for Application Specific Processor Customization Through Instruction-Set Extensions (ISEs)

    Instruction-Set Extensions (ISEs) have gained prominence in the past few years as a useful method for tailoring the ISAs (Instruction-Set Architectures) of ASIPs (Application Specific Instruction-set Processors) to the computational requirements of various embedded applications. This paper presents a generic and easily adaptable flow for application oriented ISE design that...

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  • White Papers // Aug 2007

    Trade-Offs Between Voltage Scaling and Processor Shutdown for Low-Energy Embedded Multiprocessors

    When peak performance is unnecessary, Dynamic Voltage Scaling (DVS) can be used to reduce the dynamic power consumption of embedded multiprocessors. In future technologies, however, static power consumption is expected to increase significantly. Then it will be more effective to limit the number of employed processors, and use a combination...

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  • White Papers // Jan 2010

    Hybrid Functional and Instruction Level Power Modeling for Embedded Processors

    In this paper, the concept of Functional-Level Power Analysis (FLPA) for power estimation of programmable processors is extended in order to model even embedded general purpose processors. The basic FLPA approach is based on the separation of the processor architecture into functional blocks like e.g. processing unit, clock network, internal...

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  • White Papers // Jul 2009

    Evaluation of Different Multithreaded and Multicore Processor Configurations for SoPC

    Multicore processors get more and more popular, even in embedded systems. Unfortunately, these types of processors require a special kind of programming technique to offer their full performance, i.e. they require a high thread-level parallelism. In this paper, the authors evaluate the performance of different configurations of the same processor...

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  • White Papers // Jul 2009

    Implementation of W-CDMA Cell Search on a FPGA Based Multi-Processor System-on-Chip with Power Management

    In this paper, the authors describe a general purpose, homogeneous Multi-Processor System-on-Chip (MPSoC) based on 9 processing clusters using COFFEE RISC processors and a hierarchical Network-on-Chip implemented on an FPGA device. The MPSoC platform integrates a cluster clock gating technique, enabling independent core and memory sleep modes. Low cluster turn-on...

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  • White Papers // Jul 2009

    A Multiprocessor Architecture with an Omega Network for the Massively Parallel Model GCA

    The GCA (Global Cellular Automata) model consists of a collection of cells which change their states synchronously depending on the states of their neighbors like in the classical CA (Cellular Automata) model. In differentiation to the CA model the neighbors are not fixed and local, they are variable and global....

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  • White Papers // Aug 2007

    Evaluating Large System-on-Chip on Multi-FPGA Platform

    In this paper, the authors present a configurable base architecture tailorable for different applications. It allows simple and rapid way to evaluate and prototype large Multi-Processor System-on-Chip (MPSoC) architectures on multiple FPGAs with support to Globally Asynchronous Locally Synchronous scheme. It allows early hardware/software co-verification and optimization. The architecture abstracts...

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  • White Papers // Nov 2012

    Modeling Energy-Aware Cloud Federations With SRNs

    Cloud computing is a challenging technology that promises to strongly modify the way computing and storage resources will be accessed in the near future. However, it may demand huge amount of energy if adequate management policies are not put in place. In particular, in the context of Infrastructure-as-a-Service (IaaS) cloud,...

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  • White Papers // May 2008

    A Tree-Based Approach for Frequent Pattern Mining from Uncertain Data

    Many frequent pattern mining algorithms find patterns from traditional transaction databases, in which the content of each transaction - namely, items - is definitely known and precise. However, there are many real-life situations in which the content of transactions is uncertain. To deal with these situations, the authors propose a...

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  • White Papers // May 2012

    Performance Characterization of Data-Intensive Kernels on AMD Fusion Architectures

    The cost of data movement over the PCI Express bus is one of the biggest performance bottlenecks for accelerating data-intensive applications on traditional discrete GPU architectures. To address this bottleneck, AMD Fusion introduces a fused architecture that tightly integrates the CPU and GPU onto the same die and connects them...

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  • White Papers // Apr 2011

    A Scalable Built-In Self-Recovery (BISR) VLSI Architecture and Design Methodology for 2D-Mesh Based On-Chip Networks

    On-Chip Networks (OCNs) have been proposed to solve the complex on-chip communication problems. In very deep-submicron era, OCN will also be affected by faults in chip due to technologies shrinking. Many researches focused on fault detection and diagnosis in OCN systems. However, these approaches didn't consider faulty OCN system recovery....

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  • White Papers // Mar 2014

    Hierarchical Approach to Optimization of Parallel Matrix Multiplication on Large-Scale Platforms

    Many state-of-the-art parallel algorithms, which are widely used in scientific applications executed on high-end computing systems, were designed in the twentieth century with relatively small-scale parallelism in mind. Indeed, while in 1990s a system with few hundred cores was considered a powerful supercomputer; modern top supercomputers have millions of cores....

    Provided By Springer Healthcare

  • White Papers // Nov 2008

    Clustering with XCS on Complex Structure Dataset

    Learning Classifier System (LCS) is an effective tool to solve classification problems. Clustering with XCS (accuracy-based LCS) is a novel approach proposed recently. In this paper, the authors revise the framework of XCS, and present a complete framework of clustering with XCS. XCS consists of two major modules: reinforcement learning...

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  • White Papers // Jul 2009

    NoGAP: A Micro Architecture Construction Framework

    Flexible Application-Specific Instruction set Processors (ASIP) are starting to replace monolithic ASICs in a vide variety of fields. However the design of an ASIP is today a substantial design effort. This paper discusses NoGap (Novel Generator for ASIP) a tool for ASIP designs utilizing hardware multiplexed data paths. One of...

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  • White Papers // Jan 2010

    Low-Power, High-Performance TTA Processor for 1024-Point Fast Fourier Transform

    Fast Fourier Transform (FFT) has an important role in many Digital Signal Processing (DSP) systems. E.g., in Orthogonal Frequency Multiplexing Division (OFMD) communication systems, FFT and inverse FFT are needed. The OFMD technique has become a widely adopted in several wireless communication standards. When operating in wireless environment the devices...

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  • White Papers // Jan 2010

    A Scalable, Multi-thread, Multi-issue Array Processor Architecture for DSP Applications Based on Extended Tomasulo Scheme

    A scalable, distributed micro-architecture is presented that emphasizes on high performance computing for digital signal processing applications by combining high frequency design techniques with a very high degree of parallel processing on a chip. The architecture is based on a superscalar processor model with out-of-order execution that supports specialized, complex...

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  • White Papers // Jul 2009

    The Abstract Streaming Machine: Compile-Time Performance Modelling of Stream Programs on Heterogeneous Multiprocessors

    Stream programming offers a portable way for regular applications such as digital video, software radio, multimedia and 3D graphics to exploit a multiprocessor machine. The compiler maps a portable stream program onto the target, automatically sizing communications buffers and applying optimizing transformations such as task fission or fusion, unrolling loops...

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  • White Papers // Jul 2009

    Realizing FIFO Communication When Mapping Kahn Process Networks Onto the Cell

    One of the driving forces that motivated the emergence of Multi-Processor System-on-Chips (MPSoCs) originates from the complexity of modern applications. Many applications are specified with complex block diagrams that incorporate multiple algorithms. Such applications are called heterogeneous. The emergence of heterogeneous applications led to the design of heterogeneous MPSoC architectures...

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  • White Papers // Jan 2010

    Design of Asynchronous Embedded Processor with New Ternary Data Encoding Scheme

    In this paper, the authors present a low-power implementation of the asynchronous 8051 processor, called A8051 and it employs a new data encoding method, RT/NRT encoding, to reduce switching activities. The paper focuses on power analysis of the proposed data encoding based on the experimental design of A8051. The proposed...

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  • White Papers // Aug 2007

    A Model-Driven Automatically-Retargetable Debug Tool for Embedded Systems

    Contemporary System-on-Chip (SoC) designs ask for system-level debugging tools suitable to heterogeneous platforms. Such tools will have to rely on some low-level model-driven debugging engine that must be retargetable, since embedded code may run on distinct processors within the same platform. This paper describes a technique for automatically retargeting debugging...

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  • White Papers // Aug 2007

    Area Efficient Fully Programmable Baseband Processors

    Multi-mode wireless devices and the ever changing wireless standards have increased the popularity and the use of programmable baseband processors. A large portion of the power consumption in programmable baseband processors arises from memory accesses and control-path overhead. It is for that reason crucial to reduce the control-path overhead and...

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  • White Papers // Jan 2010

    Memory Architecture Evaluation for Video Encoding on Enhanced Embedded Processors

    In this paper, the authors investigate the impact of different memory configurations on performance and energy consumption of the video encoding applications, MPEG-4 and H.264. The memory architecture is integrated with SIMD extended embedded processor, proposed in their previous work. They explore both dedicated memories and multilevel cache architectures and...

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  • White Papers // Jul 2008

    Evaluation of ASIPs Design with LISATek

    An ASIP is an hardware architectural concept meant to fill the gap between ASICs (Application Specific Integrated Circuits) and DSPs (Digital Signal Processors). The formers are highly efficient but lack flexibility. This paper evaluates an ASIP design methodology based on the extension of an existing instruction set and architecture described...

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  • White Papers // Aug 2007

    Low-Power Twiddle Factor Unit for FFT Computation

    Fast Fourier Transform (FFT) has gained popularity lately due to the fact that OFDM has been used in several wireless and wireline communication systems, e.g., IEEE 802.11a/g, 802.16, VDSL, and DVB. An integral part of the FFT computation are the twiddle factors, which, in software implementations, are typically stored into...

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  • White Papers // Jan 2010

    Software Pipelining Support for Transport Triggered Architecture Processors

    Many telecommunication applications, especially baseband processing, and Digital Signal Processing (DSP) applications call for high-performance implementations due to the complexity of algorithms and high throughput requirements. In general, the required performance is obtained with the aid of parallel computational resources. In these application domains, software implementations are often preferred over...

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  • White Papers // Apr 2011

    A Scalable Multiprocessor Architecture for Pervasive Computing

    In this paper, the authors have implemented a system for a JPEG encoding application. The previous system uses static deployment of computing resources, which limits computation capability. To address this limitation, this paper proposes a novel scalable architecture that allows extending a system by adding new subsystems, to meet increasing...

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  • White Papers // Oct 2010

    Scatter-Gather-Merge: An Efficient Star-Join Query Processing Algorithm for Data-Parallel Frameworks

    A data-parallel framework is very attractive for large-scale data processing since it enables such an application to easily process a huge amount of data on commodity machines. MapReduce, a popular data-parallel framework, is used in various fields such as web search, data mining and data warehouses; it is proven to...

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  • White Papers // Oct 2013

    Analytic Performance Modeling and Optimization of Live VM Migration

    Cloud computing is based on largely distributed virtual environments that provide Infrastructure-as-a-Service (IaaS) services to consumers allowing them to lease computing resources that scale to their needs. These services rely on virtualization as an important technology that facilitates dynamic resource management to meet Service Level Agreements (SLA) of disparate applications...

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  • White Papers // Nov 2008

    A Tale of Two Processors: Revisiting the RISC-CISC Debate

    The contentious debates between RISC and CISC have died down, and a CISC ISA, the x86 continues to be popular. Now-a-days, processors with CISC-ISAs translate the CISC instructions into RISC style micro-operations (e.g.: uops of Intel and ROPS of AMD). The use of the uops (or ROPS) allows the use...

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  • White Papers // Jan 2014

    Big Data: A Survey

    In this paper, the authors review the background and state-of-the-art of big data. They first introduce the general background of big data and review related technologies, such as could computing, Internet of Things, data centers, and Hadoop. They then focus on the four phases of the value chain of big...

    Provided By Springer Healthcare

  • White Papers // Dec 2011

    Design of Resonant Clock Distribution Networks for 3-D Integrated Circuits

    Designing a low power clock network in synchronous circuits is an important task. This requirement is stricter for 3-D circuits due to the increased power densities. Resonant clock networks are considered efficient low-power alternatives to conventional clock distribution schemes. These networks utilize additional inductive circuits to reduce the power consumption...

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  • White Papers // May 2008

    Modeling of Interconnection Networks in Massively Parallel Processor Architectures

    In this paper, the authors present a new concept for modeling of interconnection networks in the field of massively parallel processor embedded architectures. The main focus of the paper is on two interconnection concepts, namely, interconnect-wrapper and DyRIBox definitions of reconfigurable interconnection networks. They compare both interconnection concepts against each...

    Provided By Springer Healthcare

  • White Papers // Mar 2009

    Reconfigurable Operator Based Multimedia Embedded Processor

    Image processing applications need embedded devices that can integrate evolutionary standards or various standards, that is to say devices have to be flexible to implement different algorithms at different times. In other respects these devices are constrained with stringent power requirements as well as high performance. Reconfigurable processor can address...

    Provided By Springer Healthcare