We propose and analyze a new shadowing field model meant to capture spatial correlations. The interference field associated with this new model is compared to that of the widely used independent shadowing model. Independent shadowing over links is adopted because of the resulting closed forms for performance metrics, and in spite of the well-known fact that the shadowing fields of networks are ...

In this paper, we consider the tracking of mobile terminals based on the received signal strength (RSS) measured from several base stations. The spatial correlation of the random shadowing is exploited in order to improve the position tracking. We define an auto-regressive (AR) model of the temporal evolution of the shadowing. This model allows for performing a joint tracking of the position an...

Infinite population models of co-evolutionary dynamics are useful mathematical constructs hinting at the possibility of a wide variety of possible dynamical regimes from simple attractive fixed point behavior, periodic orbits to complex chaotic dynamics. We propose to use the framework of shadowing lemma to link such mathematical constructs to large finite population computer simulations. We al...

The feedback obtained from occupants regarding their comfort needs and performance of buildings is critical for assessing occupant satisfaction, identifying the operation maintenance (O&M) issues in time improving resource efficiency buildings. Current facility management (FM) systems collection practices, however, have limitations supporting effective decision-making FM, as they lack neces...

Nuclear shadowing corrections are dominated by soft interaction and grow as function of 1/x more slowly than the single scattering term, which has an essential contribution from hard interaction. Therefore we predict vanishing nuclear shadowing at very low x provided that Q is high and fixed. At the same time, at medium and low Q, nuclear shadowing grows with 1/x as is well known for soft hadro...

We study the effect of spatially homogeneous and inhomogeneous shadowing on J/psi production in deuterium-nucleus collisions. We discuss how the shadowing and its spatial dependence can be measured by comparing central and peripheral dA collisions. These event classes may be selected by using gray protons from heavy ion breakup and events where the proton or neutron in the deuterium does not in...

Disk shadowing is a technique for maintaining a set of two or more identical disk images on separate disk devices. Its primary purpose is to enhance reliability and availability of secondary storage by providing multiple paths to redundant data. However, shadowing can also boost UO performance. In this paper, we contend that intelligent device scheduling of shadowed disks increases the I/O rate...

We calculate the x dependence of nuclear shadowing at moderate values of Q by using HERA diffractive data. We show that no decrease of shadowing occurs down to very low x (x ≃ 10). Also at II Facoltà di Scienze MFN, 15100 Alessandria, Italy. Supported by EU Contract ERBFMBICT950427. The possibility of studying nuclear shadowing (i.e. the depletion of bound nucleon structure functions (F 2 ) wit...

BACKGROUND AND PURPOSE There is little information on the distribution of atherosclerotic lesions of the extracranial carotid artery wall in free-living populations. The purpose of the present study was to describe the prevalence from 1987 through 1989 of extracranial carotid artery plaque and plaque with acoustic attenuation (shadowing) lesions in a general population of white and black adults...