The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents an efficient new snapshot mechanism, briefed as Live Save, to make real time backup of the VM state to the local host. The proposed Live Save will iteratively send the state data, store the snapshot file in the local host and send the entire file directly to a remote host when necessary - to save significant bandwidth consumption. We also set up an advanced Improved Live Save which...
In this paper, we present a Programmable SoC device with monolithically integrated RF-ADCs and RF-DACs in a 16nm FinFET process. The device includes quad ARM Cortex-53 and dual ARM Cortex-R5 processing subsystem, 750K programmable logic cells, 4000 DSP slices and 4 32Gb/s serial transceivers. Each 14-bit RF-DAC operates at a sample rate of up to 6.4GS/s and can directly synthesize RF carriers up to...
As well as DSRC, LTE-based solutions have been discussed for Crash Warning Application (CWA), which is one of safety applications with Vehicle-to-Everything (V2X). This paper investigates two methods of LTE-based V2X, — Uu-based LTE-V2X which uses infrastructure and PC5-based LTE-V2X which uses D2D communication. We summarize pros and cons of these two methods for CWA, then, show quantitative performance...
The nature of Internet traffic has changed dramatically within the last few years, where a large volume of traffic is originated from mobile applications (known as apps), web based multimedia streaming, computation offloading like cloud computing and Internet of Things (IoT) etc. These types applications generate multiple parallel short lived end-to-end connections. However, the three major requirements...
Internet-of-Things (IoT) is emerging as one of the popular technologies influencing every aspect of human life. The IoT devices equipped with sensors are changing every domain of the world to become smarter. In particular, the majorly benifited service sectors are agriculture, industries, healthcare, control & automation, retail & logistics, and power & energy. The data generated...
State-of-the-art storage devices that have parallel capability have significantly reduced the performance gap between processor and storage I/O. However, the internal parallelism makes it difficult to measure utilization that can be used as a basis of load balancing, which is a critical feature of performance improvement of parallel systems. When utilization of storage reaches to one hundred percent,...
In this paper, mean time to data loss (MTTDL), a measure for reliability of distributed storage system, is analyzed where double node failure can occur.
Increasing demand has led to wireless spectrum shortages, with many parts of the existing spectrum being heavily used. Dynamic spectrum access (DSA) has been proposed to allow cognitive radio networks to use existing spectrum more efficiently. It will allow secondary users to transmit on already allocated spectrum on a non-interference basis. Cognitive radios are able to change bandwidth and other...
3D city models have become an important user interface for various applications, ranging from entertainment to civil engineering. Today, 3D city models can also be accessed on the web without installing any additional software, which has significantly widened their potential audience. However, visually accurate 3D city models are typically large in terms of file size, and hence, require ample network...
Today's trend of an increasing number of networked embedded devices pervades many areas. Ranging from home automation, industrial or automotive applications with a large number of different protocols, low resources and often high demands on real-time make it difficult to secure the communication of such systems. A concept of an uncoupled MAC which is able to ensure the authenticity and integrity of...
The arch project is a suite of mini-apps that have been developed with consistent coding practices, under a common infrastructural layer. Great emphasis has been placed on making the applications concise and easy to manipulate, while capturing the key performance characteristics of their proxied algorithmic classes. The suite is intended for traditional exploration of performance, portability and...
The performance of commodity video-gaming embedded devices (consoles, graphics cards, tablets, etc.) has been advancing at a rapid pace owing to strong consumer demand and stiff market competition. Gaming devices are currently amongst the most powerful and cost-effective computational technologies available in quantity. In this article, we evaluate a sample of current generation video-gaming devices...
Scalable Video Coding is one of the layered video coding method, which codes the video into different temporal, spatial and quality scalability levels. It allows partial removal of the scalable video levels to provide good QoE/QoS in a resource constrained environment. In a heterogeneous environment of devices and network technology, resources vary from device to device and one technology to another...
High Performance Computing(HPC) applications are highly optimized to maximize allocated resources for the job such as compute resources, memory and storage. Optimal performance for MPI applications requires the best possible affinity across all the allocated resources. Typically, setting process affinity to compute resources is well defined, i.e MPI processes on a compute node have processor affinity...
Mobile devices have become quite popular, and they are responsible for a significant part of Internet traffic. In these devices, multimedia services, such as video streaming over HTTP, are commonly adopted, and TCP protocol is the standard to assure reliable data transmission. To deal with applications that require higher bandwidth, several modifications were made on TCP, and they are called extensions...
Parity declustering is widely deployed in erasure coded storage systems so as to provide fast recovery and high data availability. However, to perform scaling on such RAIDs, it is necessary to preserve the parity declustered data layout so as to guarantee the RAID performance after scaling. Unfortunately, existing scaling algorithms fail to achieve this goal so they can not be applied for scaling...
This paper evaluates the performance of the first-last-exact fit spectrum allocation policy for elastic optical networks. The first-last-exact fit spectrum allocation policy is intended to increase the number of aligned available slots and avoid small contiguous available slots, and hence suppresses the blocking probability. This policy separates the allocation of disjoint and non-disjoint connections...
In this paper, we investigate rate adaptive radio resource allocation in visible light communication systems (VLC), to maximize the total output data rate. The proposed allocation algorithm assigns power and subcarriers to each user based on its downlink channel gain and rate constraint, while satisfying the total power constraint. The performance of the proposed algorithm on multi cell VLC systems...
In this work we analyze the complex trade-off between data transfer, computation time, and power consumption when a multi-stage data-intensive algorithm (in this case video stabilization) is split between a low power mobile device and high power cloud server. We evaluate design choices in terms of which intermediate representations should be transferred to the server and back to the mobile device,...
Network simulation is an important technique for designing interconnection networks and communication libraries. Also network simulations are useful for the analysis of internal communication behavior in parallel applications. This paper introduces a new interconnection network simulator NSIM-ACE. This simulator enables us to evaluate RDMA directly while existing simulators do not have such capability...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.