KTH - Royal Institute of Technology

Displaying 81-95 of 95 results

  • White Papers // Apr 2009

    Network-Calculus-Based Performance Analysis for Wireless Sensor Networks

    Recently, Wireless Sensor Network (WSN) has become a promising technology with a wide range of applications such as supply chain monitoring and environment surveillance. It is typically composed of multiple tiny devices equipped with limited sensing, computing and wireless communication capabilities. Design of such networks presents several technique challenges while...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Mar 2009

    Experiences on Mobile-ATM Deployment in a Developing Country

    Mobile-Commerce is the latest concept of enabling the financial transactions on mobile phones and hand-held devices. With the rapid development of the society, the M-Commerce applications play a vital role. Mobile-ATM is one such application, enabling the banking services on mobile phones. Even though users have a poor computer literacy,...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Mar 2009

    Finance And R&D Investments - Is There A Debt Overhang Effect On R&D Investments?

    The motivation of this paper is the rather naive approach to debt as a financing source of R&D investment in the empirical investment literature. The author focuses on long-term relational debt based on its appealing contractual properties and discovers a debt overhang effect for the relationship between additional long-term debt...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Mar 2009

    Ownership Structure, Board Composition And Investment Performance

    In this paper the relation between ownership structure, board composition and firm performance is explored. A panel of Swedish listed firms is used to investigate how board composition affects firm performance. Board heterogeneity is measured as board size, age and gender diversity. The results show that Swedish board of directors...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Feb 2009

    Automated Multidimensional Characterization of Power Amplifier for Design and Production

    Designing, optimizing and producing modern Power Amplifiers (PA) requires new and fast RF (Radio Frequency) measurement techniques capable of characterizing its real behavior. PAs are a truly multidimensional device where many desired performance parameters are contradictory to each other. This is especially true for the generation of modern communication PAs...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Feb 2009

    High-Level Estimation and Trade-Off Analysis for Adaptive Real-Time Systems

    The authors propose a novel design estimation method for adaptive streaming applications to be implemented on a partially reconfigurable FPGA. Based on experimental results they enable accurate design cost estimates at an early design stage. Given the size and computation time of a set of configurations, which can be derived...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    Priority Based Forced Requeue to Reduce Worst-Case Latencies for Bursty Traffic

    In this paper the authors introduce Priority Based Forced Requeue to decrease worst-case latencies in NoCs offering best effort services. Forced Requeue is to prematurely lift out low priority packets from the network and requeue them outside using priority queues. The first benefit of this approach, applicable to any NoC...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    Flow Regulation for On-Chip Communication

    IPs for a SoC are typically developed concurrently using a standard interface, for example, AXI or OCP. Despite the standard interfaces, integrating IPs to a SoC infrastructure presents challenges because traffic flows from IPs are diverse and typically they have stringent performance constraints; the impact of interferences among traffic flows...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    Buffer Minimization of Real-Time Streaming Applications Scheduling on Hybrid CPU/FPGA Architectures

    The authors address the problem of real-time streaming applications scheduling on hybrid CPU/FPGA architectures. The main contribution is a two-step approach to minimize the buffer requirement for streaming applications with throughput guarantees. A novel declarative way of constraint based scheduling for real-time hybrid SW/HW systems is proposed, while the application...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    MagicNET: The Human Immune System and Network Security System

    Most of the current security systems do not provide adequate level of protection against ever-increasing threats. The main reason for their failure is the use of point solutions to protect hosts and reactive approach against intrusions. The paper studied human immune system, which survives under dynamic changing conditions and provides...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    Efficient Link Scheduling and Channel Hopping for Convergecast in Wireless HART Networks

    There is a strong current interest in migrating substantial parts of the traditionally wired industrial infrastructure to wireless technologies to improve flexibility, scalability, and efficiency. However, concerns about network latency, reliability and security along with the lack of device interoperability have hampered the deployment rate. To address these concerns, WirelessHART,...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Dec 2008

    Optimal Stopping for Event-Triggered Sensing and Actuation

    Novel event-triggered sensing and actuation strategies are presented for networked control systems with limited communication resources. Two architectures are considered: one with the controller co-located with the sensor and one with the control co-located with the actuator. A stochastic control problem with an optimal stopping rule is shown to capture...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Dec 2008

    Implementation of a DLI-Guard Using the AMBA AXI Protocol for Network-on-Chip

    Nowdays, the integration of several system components or IP blocks, such as processors, DSP units and memories on one chip is overwhelming the industry. The method of integrating several components on one chip is known as System on Chip (SoC) design. Due to the increase of the number of the...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jun 2006

    Strategic Business and IT Alignment: A Prioritized Theory Diagram

    Many academic and practitioners' studies have shown that misalignment or lack of alignment between Information Technology (IT) and business strategies is one of the main reasons why enterprises fail to exploit the full potential of their IT investments. Furthermore, organizations that have accomplished a high degree of alignment are often...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Oct 2004

    Human Capital Development and Competence Structures in Changing Media Production Environments

    This doctoral paper discusses the competence structures and the development of human capital in the graphic arts and media sector. The study has focused on exploring the new media landscape and in particular the structural changes that influence the sector, the print-versus electronic-media debate and the future of print media....

    Provided By KTH - Royal Institute of Technology

  • White Papers // Mar 2011

    On Designing Optimal Servomechanism Controller With Limited Model Information

    The family of limited model information designs, which construct controllers by accessing the plant's model in a constrained manner, is introduced in this paper. The closed-loop constant-disturbance rejection performance of the best Proportional-Integral (PI) controller that they can produce is investigated. For a class of linear discrete-time time-invariant plants, it...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Nov 2009

    Supporting Distributed Shared Memory on Multi-Core Network-on-Chips Using a Dual Microcoded Controller

    Supporting Distributed Shared Memory (DSM) is essential for multi-core Network-on-Chips for the sake of reusing huge amount of legacy code and easy programmability. The authors propose a microcoded controller as a hardware module in each node to connect the core, the local memory and the network. The controller is programmable...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Apr 2010

    Supporting Efficient Synchronization in Multi-Core NoCs Using Dynamic Buffer Allocation Technique

    This paper explores a dynamic buffer allocation technique to guide distributed synchronization architecture to support efficient synchronization on multi-core Network-on-Chips (NoCs). The synchronization architecture features two physical buffers to be able to concurrently queue and handle synchronization requests issued by the local processor and remote processors via the on-chip network....

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jul 2010

    Handling Shared Variable Synchronization in Multi-Core Network-on-Chips With Distributed Memory

    Parallelized shared variable applications running on multi-core Network-on-Chips (NoCs) require efficient support for synchronization, since communication is on the critical path of system performance and contended synchronization requests may cause large performance penalty. In this paper, the authors propose a dedicated hardware module for synchronization management. This module is called...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Apr 2009

    Network-Calculus-Based Performance Analysis for Wireless Sensor Networks

    Recently, Wireless Sensor Network (WSN) has become a promising technology with a wide range of applications such as supply chain monitoring and environment surveillance. It is typically composed of multiple tiny devices equipped with limited sensing, computing and wireless communication capabilities. Design of such networks presents several technique challenges while...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Dec 2008

    Implementation of a DLI-Guard Using the AMBA AXI Protocol for Network-on-Chip

    Nowdays, the integration of several system components or IP blocks, such as processors, DSP units and memories on one chip is overwhelming the industry. The method of integrating several components on one chip is known as System on Chip (SoC) design. Due to the increase of the number of the...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Sep 2010

    Run-Time Partitioning of Hybrid Distributed Shared Memory on Multi-Core Network-on-Chips

    On multi-core Network-on-Chips (NoCs), memories are preferably distributed and supporting Distributed Shared Memory (DSM) is essential for the sake of reusing huge amount of legacy code and easy programming. However, the DSM organization imports the inherent overhead of translating virtual memory addresses into physical memory addresses, resulting in negative performance....

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2009

    Buffer Minimization of Real-Time Streaming Applications Scheduling on Hybrid CPU/FPGA Architectures

    The authors address the problem of real-time streaming applications scheduling on hybrid CPU/FPGA architectures. The main contribution is a two-step approach to minimize the buffer requirement for streaming applications with throughput guarantees. A novel declarative way of constraint based scheduling for real-time hybrid SW/HW systems is proposed, while the application...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2014

    Exact Optimized-cost Repair in Multi-hop Distributed Storage Networks

    The problem of exact repair of a failed node in multi-hop networked distributed storage systems is considered. Contrary to the most of the current studies which model the repair process by the direct links from surviving nodes to the new node, the repair is modeled by considering the multi-hop network...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jan 2013

    Repair for Distributed Storage Systems with Erasure Channels

    The authors study the repair problem of distributed storage systems in erasure networks where the packets transmitted from surviving nodes to the new node might be lost. The fundamental storage-bandwidth tradeoff is calculated by multicasting analysis in erasure networks. The optimal tradeoff bound can be asymptotically achieved when the number...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Jun 2013

    Analysis and Evaluation of Circuit Switched NoC and Packet Switched NoC

    Circuit switched NoC has, compared to packet switching, a longer setup time, guaranteed throughput and latency, higher clock frequency, lower HW complexity, and higher energy efficiency. Depending on packet size and throughput requirements they exhibit better or worse performance. In this paper, the authors designed a circuit switched NoC and...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Aug 2012

    Scalability Analysis of Release and Sequential Consistency Models in NoC based Multicore Systems

    The authors analyze the scalability of the Release Consistency (RC) and Sequential Consistency (SC) models which are realized in the Network-on-Chip (NoC) based distributed shared memory multicore systems. The analysis is performed on the basis of workloads mapped on the different sizes of networks with different data sets. The experiments...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Oct 2012

    Overload Management in Data Stream Processing Systems With Latency Guarantees

    Stream processing systems are becoming increasingly important to analyze real-time data generated by modern applications such as online social networks. Their main characteristic is to produce a continuous stream of fresh results as new data are being generated at real-time. Resource provisioning of stream processing systems is difficult due to...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Apr 2009

    Modelling Business Transactions from the Value and Collaboration Perspective

    Business collaborations between actors encompass different business objectives, such as making product awareness, buying or selling specific products or goods, providing post-sale services, and so forth. Thereby, a clear identification of required business transactions is vital for modeling complex business collaboration, as well as for their further implementation with IT...

    Provided By KTH - Royal Institute of Technology

  • White Papers // Sep 2012

    Integrating Conventional ERP System With Cloud Services: From the Perspective of Cloud Service Type

    Integrating conventional ERP system with cloud services is an emerging topic nowadays as IT technologies are developing very fast. It is proved that cloud computing has many benefits, and cloud services with flexible licensing model and cost saving features bring opportunities to enterprise's IT operations. Conventional ERP system, an important...

    Provided By KTH - Royal Institute of Technology