quantum-dot cellular automata (qca) is an emerging and promising technology that provides significant improvements over cmos. recently qca has been advocated as an applicant for implementing reversible circuits. however qca, like other nanotechnologies, suffers from a high fault rate. the main purpose of this paper is to develop a fault tolerant model of qca circuits by redundancy in hardware a...

Quantum-dot Cellular Automata (QCA) is an emerging and promising technology that provides significant improvements over CMOS. Recently QCA has been advocated as an applicant for implementing reversible circuits. However QCA, like other Nanotechnologies, suffers from a high fault rate. The main purpose of this paper is to develop a fault tolerant model of QCA circuits by redundancy in hardware a...

Quantum-dot Cellular Automata (QCA) is an emerging and promising technology that provides significant improvements over CMOS. Recently QCA has been advocated as an applicant for implementing reversible circuits. However QCA, like other Nanotechnologies, suffers from a high fault rate. The main purpose of this paper is to develop a fault tolerant model of QCA circuits by redundancy in hardware a...

Time redundancy is a fault tolerance technique in which a task -either computation or communication -is performed multiple times on the same hardware. This technique is cheaper than other fault tolerance solutions that require some form of hardware redundancy, because it does not require replicated hardware. However, fault coverage may be lower with time redundancy as it only captures certain c...

This work presents Perfect Window Memoization; a high-level processing model that gives an estimation (upper-bound) of performance gain for an image processed in software or hardware, obtained by eliminating the computational redundancy of the image. We show mathematically, supported by experimental data, that the computational redundancy of an image is, in fact, inherited from two basic data r...

As soft errors are important design concerns in embedded systems, several schemes have been presented to protect systems against them. Embedded can be protected by hardware redundancy; however, hardware-based protections cannot provide flexible protection due hardware-only modifications. Further, they incur significant overheads terms of area, performance, and power consumption. Therefore, redu...

The distributed nature of fog computing is designed to alleviate bottleneck traffic congestion which happens when a massive number devices try connect more powerful resources simultaneously. Fog focuses on bringing data processing geographically closer source utilizing existing such as routers and switches. This heterogeneity an important feature challenge at the same time. To enhance availabil...

A nano-robot is a controlled robotic system at the nanoscale. Nowadays, nanorobotics has become of particular interest in medicine and pharmacy. The accurate diagnosis diseases as well their rapid treatment will make everyone surprised significantly reduce associated risks. modeling reliability biosensors studied for first time this paper. use practical hardware redundancy turned into most cost...

i Abstract A diagnosis procedure is an algorithm to detect and locate (isolate) faulty components in a dynamic process. To achieve diagnosis, redundancy has to be included in the system. This redundancy can be either hardware redundancy or analytical redundancy. Methods based on analytical redundancy need no extra hardware. The redundancy is generated from a process model instead. In this thesi...