We consider the transmission of a message of size r from a source to a destination over a computer network with n nodes and m links. There are three sources of delays: (a) propagation delays along the links, (b) delays due to bandwidth availability on the links, and (c) queuing delays at the intermediate nodes. First, we consider that the delays on various links and nodes are given as functions...

RAKE receiver is used in CDMA-based (Code Division Multiple Access) systems and can combine multipath components, which are time-delayed versions of the original signal transmission. Combining is done in order to improve the signal to noise ration at the receiver. RAKE receiver attempts to collect the time-shifted versions of the original signal by providing a separate correlation receiver for ...

In this work, the design and analysis of new Level Shifter with Gate Driver for Li-Ion battery charger is proposed for high speed and low area in 180nm CMOS technology. The new proposed level shifter is used to raise the voltage level and significantly reduces transfer delay 1.3ns (transfer delay of conventional level shifter) to 0.15ns with the same input signal. Also, the level shifter with g...

The optimum wire shape for minimum signal propagation delay across an line is shown to have a general exponential form. The line inductance makes exponential tapering more attractive for lines than for lines. For lines, optimum wire tapering achieves a higher reduction in the signal propagation delay as compared to uniform wire sizing. Wire tapering can reduce both the propagation delay and pow...

We provide a mathematical formulation of flight-specific delay cost functions that enables detailed tactical consideration how given flight will interact with all downstream constraints in the respective aircraft rotation. These are reformulated into stochastic to respect conditional probabilities and increasing uncertainty related more distant operational constraints. Conditional learned from ...

The Markov random field (MRF) theory has been accepted as a highly effective framework for designing noise-tolerant nanometer digital VLSI circuits. In MRF-based design, proper feedback lines are used to control noise and keep the circuits in their valid states. However, this methodology has encountered two major problems that have limited the application of highly noise immune MRF-based circui...

To continuously monitor health information using wireless sensors placed on a person is a promising application. Human body communication (HBC) is proposed as a low power, security and light-weight communication technology that could be applied in aforementioned applications. In this work, the characterization of HBC propagation delay and phase deviation were investigated for the first time. In...

As radio signals are propagated through the atmosphere, they are affected mostly by variability in refractive index which, in turn, leads to a decrease in their speed of propagation. This will eventually bring about a delay called propagation delay . Propagation delay could be viewed in various forms, but this paper has concentrated on ionospheric and tropospheric propagation delays. These dela...

Delay-based transmission control protocols need to separate round-trip time (RTT) measurements into their constituting parts: the propagation and the queueing delays. We consider two means for this; the first is to take the propagation delay as the minimum observed RTT value, and the second is to measure the queueing delay at the routers and feed it back to the sources. We choose FAST-TCP as a ...

This paper presents an ultra-wide-range all-digital delaylocked loop (DLL). The proposed DLL uses a novel delay circuit which uses the transistor’s leakage current in advanced CMOS process to generate a very large propagation delay. Thus, the proposed DLL can operate at very low frequency with small chip area and low power consumption. The proposed DLL can operate from 600 kHz to 1.2GHz in the ...