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Particle-based models are widespread in the field of computer graphics and are mostly used in soft-body dynamics, for simulating surfaces such as cloth, fluids and biologic tissue. As model resolution and scenario complexity increases, the computation required for these particular applications becomes overwhelming for a single processing unit, especially when interactivity is required, thus parallelization...
According to the characteristics of multiple missiles cooperative guidance, a time-cooperative guidance architecture based on leader-follower strategy is proposed. This architecture is composed of individual guidance for each missile and coordinating strategy of the whole system. The central process unit situated at the leader coordinates the system, and the cooperative information is broadcasted...
We present a fully-digital digital-to-analog converter (FD DAC) architecture design for high-speed communication systems. The FD DAC design is based on the ΔΣ modulation. The specifications for the DAC includes a low 1.2 V supply voltage, a high 5 GS/s input sampling rate, and a wide 2.5 GHz bandwidth. We employ a combination of the time-interleaving, parallel, and pipelining techniques to reduce...
A Δή all-digital delay-locked loop (ADDLL) is proposed to realize a PVT-insensitive time-to-digital converter (TDC) with enhanced linearity in an all-digital phase-locked loop (ADPLL). With the proposed TDC, poor timing resolution and nonlinearity problems are mitigated, enabling a low cost, low comparison frequency TDC design without using the advanced CMOS technology. A novel digitally-controlled...
Prototyping distributed embedded system can be seen as a collection of many requirements covering many domains. System designers and developers need to describe both functional and non-functional requirements. Building distributed systems is a very tedious task since the application has to be verifiable and analyzable. Architecture Analysis and Design Language (AADL) provides adequate syntax and semantics...
Compressors play a significant role in overall performance of multipliers and hence in efficiency of arithmetic circuits. To further improvement of multipliers higher order compressors have been considered. In this paper, two novel 5:2 compressors are presented. The proposed architectures lay emphasis on the idea of making the carry-out signal Cout2 independent of Cin1. Therefore, we have developed...
In order to fabricate high performance polymer solar cells, donor:acceptor mixture must be prepared using a proper solvent. Since solubility of C60, as a truly cost effective acceptor, is very limited in common solvents, finding a suitable solvent can enhance the Poly(3-hexylthiophene):C60 (P3HT:C60) based solar cell performance in terms of short circuit current (JSC), fill factor (FF) and consequently...
Network on Chip (NOC) is a important communication infrastructure for system on chips (SOC). Router is most important parameter of the NOC. Area and performance both play a vital role in network on chip (NOC) architecture. In this paper we implement the loop back virtual channel router by comparing the look - ahead speculative virtual channel and baseline router architecture. In this implemented loopback...
This paper provides an overview of CyMRisk, an experimental architecture for computing mission risk due to cyber attack. In its current form, the approach employs a simulation of key aspects of a target business/mission process as well as attacker behavior to estimate mission impact due to cyber attacks. In addition, CyMRisk estimates worst case attacker level of effort associated with carrying out...
Networking community is largely depending on simulation to evaluate the performance and behavior of protocols for networks. A network simulator is a program which models the behavior of a network without an actual network being present. Different network simulation tools have been developed during the past years in the field of communication. In this article, present a comparison and simulation study...
Performance requirements play a significant role in the design of large-scale systems, such as enterprise information systems. Systems Modeling Language (SysML), proposed by Object Management Group (OMG) for system engineering, provides for requirements specification, though a verification method for quantitative requirements as performance ones is lacking. In the information systems domain, performance...
Task migration is the transfer of the execution of a process (task) from one processing element to another. It originates from the massive deployment of distributed systems in the parallel computing field to enable dynamic load distribution, fault resilience and to enhance data access locality. With the development of MultiProcessor System-on-Chip (MPSoC) architectures, the topic of task migration...
Cloud computing will be a major technology in the development of the future Internet of Services. Service providers want to remove the bottle neck of the cloud computing system in order to satisfy user requirement. And in order to save energy consumption they also need to apply new energy-efficiency mechanism and observe its effects on a data center. As it is difficult to test new mechanism in real...
Low leakage power with maintained high throughput NoC is achieved. Traffic-based Virtual channel Activation algorithm (TVA) is proposed to activate/deactivate virtual channels in a NoC. The proposed algorithm implements Adaptive Virtual Channel technique of switching-OFF idle virtual channels in the NoC according to traffic heaviness. TVA is an efficient and flexible algorithm which provides set of...
A recommended practice for applying the Distributed Simulation Engineering and Execution Process (DSEEP) to the development and execution of distributed simulation environments that include more than one distributed simulation architecture is described. The distributed simulation architectures to which the recommended practice applies include Distributed Interactive Simulation (DIS), High Level Architecture...
Low power consumption and reliability become vital in Network-on-Chip (NoC) designs with growth of integrated circuits complexity. In this paper, we propose a novel architecture with buffer-shared router structure to reduce buffer redundancy. Accordingly, the proposed defect-tolerant routing algorithm can effectively associate with improved intra-router architecture to improve reliability of NoCs...
Abstract -- The Cloud computing is a rapidly emerging distributed system paradigm that offers a huge amount of IT resources as utility services at a reduced cost and flexible schemes. The key of such flexibility is an efficient load balancer that offers better management and utilization of virtualized underlying cloud infrastructures. However, most of the existing load balancers in cloud computing...
The generation of new databases and the amount of data on existing ones is growing exponentially. As a result, executing queries on large databases is becoming a timely and challenging task. With this in mind, we study the problem of compressing sequences in a database so that similarity queries can be performed efficiently on the compressed database. The fundamental limits of this problem characterize...
Thanks to the improvements in semiconductor technologies, extreme-scale systems such as teradevices (i.e., composed by 1000 billion of transistors) will enable systems with 1000+ general purpose cores per chip, probably by 2020. Three major challenges have been identified: programmability, manageable architecture design, and reliability. TERAFLUX is a Future and Emerging Technology (FET) large-scale...
Software Assistive Systems supporting visualization, simulation with aid of virtual reality could possibly enhance the experience and thereby enhance the speed and characteristics of the learning process. For the inclusive systems this means to make the best use of all interfaces human beings are blessed with taken from visualization, touch, voice, smell and taste. The right blend between visualization,...
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