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Technology nowadays is growing very rapidly, so many systems have been digitized. Most of the digitization of this system leads to the development of web-based systems, it's also combined with embedded systems, to create a system called Web of Things. Besides, digitalization will be very useful if applied to the public service system, one of which is the queuing system. In this research, we are making...
Wireless devices for ambulatory ECG monitoring are becoming increasingly popular. One of the challenges that wireless monitoring has to deal with is clock synchronization between the wireless sensor device and the controller device. The monitoring device is usually kept as simple as possible to maximize its autonomy, and is thus limited in its clock accuracy. In this article, we describe a method...
This paper presents the creation of the Pong game on an FPGA using a computer display. The game is optimized to work on both LCD and CRT displays too. The game is implemented from scratch, it has the two pads drawn, the ball is also drawn and the background is painted in white. Everything is implemented in hardware on FPGA, so this way at the end we are able to create the ASIC with the game. The goal...
Synchronization, in general, is the process of event coordination so that a system performs in unison. In wireless sensor networks (WSN), the network topology often changes dynamically in time. This brings technical hitches and challenges into time synchronization of the sensor nodes in the WSN. In such networks, data routing scheme is either data fusion, fusion of decisions or hybrid fusion. No matter,...
In current cloud systems, services run across multiple geographically distributed clusters and continuously generate resource usage data due to constant resource consumption. In the context of accounting, resource usage data generated from each cluster during service runtime must be collected and aggregated into a single cloud-wide record so that a single bill can be created. This paper presents a...
Most of the current disaster recovery solutions need to rely on expensive commercial disaster recovery software and hardware. In order to reduce the cost of disaster recovery, a fully featured, affordable disaster recovery solution and an offsite disaster recovery system RDRS (Remote Disaster Recovery System) are putted forward in this paper. Based on existing technologies, such as DFS, database mirroring...
Current nanometer technologies suffer within-die parameter uncertainties, varying workload conditions, aging, and temperature effects that cause a serious reduction on yield and performance. In this scenario, monitoring, calibration, and dynamic adaptation become essential, demanding systems with a collection of multi purpose monitors and exposing the need for light-weight monitoring networks. This...
Localization is an important factor to enhance availability of healthcare monitoring systems for the patient and asset tracking. This paper provides an efficient ranging measurement technique of OWR method based on the impulse radio UWB for the WBAN healthcare services. When fixed reference nodes broadcast the ranging messages in a network, the mobile nodes measure the time of arrived messages and...
Several performance analysis tools support hybrid applications. Most originated as MPI profiling or tracing tools and OpenMP capabilities were added to extend the performance analysis capabilities for the hybrid parallelization case. In this paper we describe our experience with the other path to support both programming paradigms. Our starting point is a profiling tool for OpenMP called ompP that...
Timing-error detection and recovery circuits are implemented in a 65 nm resilient circuit test-chip to eliminate the clock frequency guardband from dynamic supply voltage (VCC) and temperature variations as well as to exploit path-activation probabilities for maximizing throughput. Two error-detection sequential (EDS) circuits are introduced to preserve the timing-error detection capability of previous...
Traditional implementations of conditional critical regions and monitors can lead to unproductive "busy waiting" if processes are allowed to wait on arbitrary boolean expressions. Techniques from global flow analysis may be employed at compile time to obtain information about which critical regions (monitor calls) are enabled by the execution of a given critical region (monitor call). We...
We describe a formal theory of the total correctness of parallel programs, including such heretofore theoretically incomplete properties as safety from deadlock and starvation. We present a consistent and complete set of proof rules for the total correctness of parallel programs expressed in nondeterministic form. The proof of consistency and completeness is novel in that we show that the weakest...
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