Massive Multiple Input Output (MIMO) is a promising technique for communications due to the high data transmission rate. To harvest benefit from massive MIMO, it necessary have accurate channel estimates. Such channels often exhibit sparsity in virtual angular domain. This paper proposes dichotomous coordinate descent (DCD) based algorithm joint sparse estimation domain orthogonal-frequency-div...

In this paper, we study spaces of vector functions that are holomorphic in the angular domain complex plane and with values a separable Hilbert space. We show that, equipped appropriate norms, these spaces.

This work presents thermoplastic analysis of FG rotating diskswith variable thickness and constant angular velocity. The solutions are obtained by variable material property (VMP) theory. In this theory, the domain is divided into some finite sub-domains in the radial direction, in which the properties are assumed to be constant and the form of the elastic response is used to solve elastic-plas...

The article is concerned with a new nonlocal model based on Eringen’s nonlocal elasticity and generalized thermoelasticity. A study is made of the magneto-thermoelastic waves in an isotropic conducting thermoelastic finite rod subjected to moving heat sources permeated by a primary uniform magnetic field and rotating with a uniform angular velocity. The Laplace transform technique with respect ...

We exploit the ability to precisely control the magnetic domain structure of perpendicularly magnetized Pt/Co/Pt trilayers to fabricate artificial domain wall arrays and study their transport properties. The scaling behavior of this model system confirms the intrinsic domain wall origin of the magnetoresistance, and systematic studies using domains patterned at various angles to the current flo...

contact dermatitis is an inflammatory reaction of the skin and mucosa to either external or internal factors. it can be divided to two forms of irritant contact dermatitis and allergic contact dermatitis. nickel is one of the most common materials that causes allergic contact dermatitis and is widely used in orthodontic appliances. the inflammatory reaction to this metal in orthodontics is usua...

In previous works light-field capture has been analyzed in spatio-angular representation. A light-field camera samples the optical signal within a single photograph by multiplexing the 4D radiance onto the physical 2D surface of the sensor. In this paper we develop a theory of multiplexing the radiance in the frequency domain by optically mixing different spatial and angular frequency component...

Extremely large-scale multiple-input-multiple-output (XL-MIMO) is promising to meet the high rate requirements for future 6G. To realize efficient precoding, accurate channel state information essential. Existing estimation algorithms with low pilot overhead heavily rely on sparsity in angular domain, which achieved by classical far-field planar-wavefront assumption. However, due non-negligible...