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In the past few years the security issues in the supervisory control and data acquisition (SCADA) system have been investigated, and many security mechanisms have been proposed from research communities. The international standard organizations also have published several standard documents for secured SCADA systems. In this paper we explain the(More)
Space Time Adaptive Processing (STAP) techniques that are being developed for the next generation radar systems require very high computing power. In order to meet the real-time requirements in STAP applications, High Performance Computing (HPC) systems are used. In this paper, we present a methodology to design high throughput-rate parallel algorithms for(More)
In this paper, we present a methodology for mapping an Embedded Signal Processing (ESP) application onto HPC platforms such that the throughput performance is maximized. Previous approaches used a linear pipelined execution model which restrict the mapping choices. We show that the \optimal" solution obtained under that model can be improved, using the(More)
Data encryption and decryption are common operations in a network based application programs with security. In order to keep pace with the input data rate in such applications, real-time processing of data encryption/decryption is essential. For example, in an environment where a multimedia data is streamed, high speed data encryption/decryption is crucial.(More)
Flash memory cannot be overwritten unless erased in advance. In order to avoid having to erase during every update, non-inplace-update schemes have been used. Since updates are not performed in place, obsolete data are later reclaimed by garbage collection. In this paper, we study a new garbage collection algorithm to reduce the cleaning cost such as the(More)
We present a novel approach that allows the user to feel the other's emotional status while communicating with each other in a video chat. The video chat is composed of physiological sensors and multimodal displays. In our first prototype, we employed a Galvanic Skin Response (GSR) sensor and a Blood Volume Pulse (BVP) sensor as they were crucial(More)
Latest High Performance Computing (HPC) platforms are built with heterogeneous chips such as multicore microprocessors and multicore GPUs (Graphic Processing units), thus they are commonly called as Heterogeneous High Performance Computing (HPC) platforms. Various programming models have been developed and proposed for heterogeneous platforms. However,(More)
Aho-Corasick (AC) algorithm is a multiple patternsmatching algorithm commonly used for applications such as computer and network security, bioinformatics, image processing, among others. These applications are computationally demanding, thus optimizing performance for AC algorithm is crucial. In this paper, we present a performance optimization strategy for(More)