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Software-intensive system has been the major form of the current software system, and therefore, the reliability evaluation of Software-intensive system is becoming constantly more important. Since the black-box model is not suitable because of the large scale and heterogenicity of the embedded system, the architecture-based approach is proposed to analyze the reliability of large and Software-intensive...
The computerization of automotive control has expanded the application range of micro controller units (MCUs). A high-end engine-control unit (ECU) requires high-performance Flash MCUs, which integrate high-speed CMOS logic and large high-performance embedded Flash memories (eFlash) [1,2]. There are also broad markets for motor control MCUs: used to control actuators in parts such as seats, windows,...
We present a first of its kind framework which overcomes a major challenge in the design of digital systems that are resilient to reliability failures: achieve desired resilience targets at minimal costs (energy, power, execution time, area) by combining resilience techniques across various layers of the system stack (circuit, logic, architecture, software, algorithm). This is also referred to as...
STT-MRAM has been considered as one of the most promising nonvolatile memory candidates in the next-generation of computer architecture. However, the read reliability and dynamic write power concerns greatly hinder its practical application. In this paper, we propose a synergistic solution, namely pseudo-differential sensing (PDS), to jointly address these two concerns. Three techniques, including...
In the context of approximate computing, Approximate Dynamic Random Access Memory (ADRAM) enables the tradeoff between energy efficiency, performance and reliability. The inherent error resilience of applications allows sacrificing data storage robustness and stability by lowering the refresh rate or disabling refresh in DRAMs completely. Consequently, it is important to know exactly the statistical...
Today's explosive demand for data transfer is accelerating the development of non-volatile memory with even larger capacity and cheaper cost. Since the introduction of 3D technology in 2014 [1], V-NAND is believed to be a successful alternative to planar NAND and is quickly displacing planar NAND in the SSD market, due to its performance, reliability, and cost competitiveness. V-NAND has also eliminated...
In today's computing systems Dynamic Random Access Memories (DRAMs) have a large influence on performance and contribute significantly to the total power consumption. Thus, recent research activities bring the idea of approximate DRAM into focus to save power and improve performance by lowering the refresh rate or disabling refresh completely. Hence, fast and accurate models are required for a thoroughly...
Embedded systems have an increasing importance in our everyday lives. The growing complexity of embedded systems and the emerging trend to interconnections between them lead to new challenges. Intelligent solutions are necessary to overcome these challenges and to provide reliable and secure systems to the customer under a strict time and financial budget. WISES 2015 is a platform for presentation...
Internet of things (IoT) is an emerging technology that is attaining maturity under which the objects surrounding humans will be blessed with internet. This would result in generation of humongous amount of data which need to be stored and processed for getting optimum benefit from IoT. In this paper we have proposed a generalized architecture which uses Cloud Computing and Big Data for effective...
The development of cloud computing philosophy and technology offers new direction to e-government. First, introduced and analyzed current situation of government cloud computing at home and abroad. Then, discuss the research contents from the aspects of migration mode and architecture of government cloud, popular government cloud solutions. Finally, indicated the problems to be solved urgently.
Cyber physical systems are one of new trends and research topics in recent years. In this research Project, we propose to use CPS to detect the real world physical status and conditions and to actuate disaster recovery system. This Project uses the new concept of Intelligent Autonomic computing coupled with Cyber Physical System applied for Disaster recovery and Management system. The system can work...
This paper describes a method to solve the complexity of distributed environment in cloud technology and the single-point failure problem. In this paper, we take the virtual machine failure and host failure in OpenStack into consideration. The ability of fast restoration of this service is achieved by components in OpenStack which is called ceilometer and new components named Senlin. The function...
CRC (Cyclic Redundancy Check) is a simple and an elegant method for error detection. It finds application in most of the high-speed data communication protocol. In High Energy Physics experiment often CRC is used for control and data frame communication with detectors placed at radiation zone. Reliability of CRC error detection capability alters with generator polynomial chosen. The most popular choice...
Vision and video applications are becoming pervasive in mobile and embedded systems. Consumer wearable devices require capabilities for real-time video analytics and prolonged battery lifetimes, which is further driving the need for innovative system designs with low-power, reliability and high performance. Further, the increasing resolution of image sensors in these mobile systems places an increasing...
Flash-based SSDs are widely used as storage caches, which can benefit from both the higher performance of SSDs and lower price of disks. Unfortunately, issues of reliability and limited lifetime limit the use of Flash-based cache. One way to solve this problem is to use the flash memory as read cache and use other devices like nonvolatile memory for write buffering. In this paper, we propose a new...
LDPC codes are commonly decoded by conventional belief propagation algorithms like the min-sum algorithm. However especially for small block lengths belief propagation performs poorly in comparison to maximum likelihood decoding. In this paper we propose a new decoding algorithm, that is inspired by augmented belief propagation from literature and present hardware architectures and implementations...
There has been significant recent research in reliable architectures. This is in response to the perceived hardware failure threats faced by late- and post-CMOS devices, e.g., energized particle hits, increasing variability of device parameters and aging-related failures. This body of research proposes specific micro-architecture mechanisms to defend against these threats. Each proposed mechanism...
A major concern of users of cloud storage services is the lost of control over security, availability and privacy of their files. That is partially addressed by end-to-end encryption techniques. However, most of the solutions currently available offer rigid functionalities that cannot be rapidly integrated into customized tools to meet user's requirements like, for example, file sharing with other...
The diversity, continuous expansion and the large number of smart grid resources increase the complexity of such systems and arise the need to find a new way to manage these resources and, at the same time, reduce the complexity in the control and monitoring operations. Moreover, smart grid Systems are considered critical systems requiring reliable and real time data delivery and an efficient, flexible,...
During the past ten years, cloud computing gradually becomes mature which is a current research hotspot. OpenStack is currently one of the most popular open source cloud platforms that developed by Rack space and NASA. It provides some toolkits to deploy cloud environment and implement cloud infrastructure like Amazon EC2. In this paper, we describe OpenStack architecture in detail and introduce its...
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