In this paper, we study Distributed Admission Control (DAC) procedure for anycast flows with QoS requirements. We focus on algorithms that perform destination selection, which is critical in anycast. Several algorithms are proposed. These algorithms differ from each other in their dependence on system status information. We also address the issue of resource reservation and re-trial control in ...

Abstrac t-The paper illustrates a method for simultaneous ADC and DAC linearity testing in a loopback scheme. The main features of the method are: (i) it is statistically nearly optimal, being based on a maximum likelihood estimator; (ii) it does not require prior knowledge neither of the ADC nonlinearity, nor of the DAC nonlinearity – both are simultaneously measured relying only on a constant...

SAR-ADC is best suited for low power applications where power has a trade-off with speed. Use of redundant circuitry reduces the on chip area making it cost effective. DAC is one of the components of SAR-ADC that introduces error voltage due to mismatch and consumes large power other than comparator. Low power DAC architectures have been studied and analysed. To account for capacitor mismatch i...

Asymmetric monotonic switching scheme is proposed for a low power successive approximation register (SAR) analogue-to-digital converter (ADC). The proposed switching procedure consumes no energy from reference voltage for the first 3 MSB (most significant bit) conversion using unequal initial DAC setting and asymmetric binary search algorithm. After 3 MSB conversions, DAC switching utilizes a c...

We generated a mouse line harboring an autosomal-dominant nocturnal frontal lobe epilepsy (ADNFLE) mutation: the alpha4 nicotinic receptor S248F knock-in strain. In this mouse, modest nicotine doses (1-2 mg/kg) elicit a novel behavior termed the dystonic arousal complex (DAC). The DAC includes stereotypical head movements, body jerking, and forelimb dystonia; these behaviors resemble some core ...

Recently, there has been considerable interest in attribute based access control (ABAC) to overcome the limitations of the dominant access control models (i.e, discretionary-DAC, mandatory-MAC and role based-RBAC) while unifying their advantages. Although some proposals for ABAC have been published, and even implemented and standardized, there is no consensus on precisely what is meant by ABAC ...

Accurate mass density information is critical in high-pressure studies of materials. It is, however, very difficult to measure the mass densities of amorphous materials under high pressure with a diamond anvil cell (DAC). Employing tomography to measure mass density of amorphous samples under high pressure in a DAC has recently been reported. In reality, the tomography data of a sample in a DAC...

A 10-bit 100-kS/s successive approximation register (SAR) analogto-digital converter (ADC) with rail-to-rail input range is proposed for a low power sensor interface. It consists of a time-domain comparator, a split capacitor-based digital-to-analog converter (SC-DAC) and a SAR logic. The time-domain comparator with an offset calibration technique is used to achieve a resolution of 10-bit. To r...

Data converters, i.e., analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), are interface circuits between the analog and digital domains. They are used in, e.g., digital audio applications, data communication applications , and other types of applications where conversion between analog and digital signal representation is required. This work covers different aspects re...