Technological evolution of mobile user equipment (TIEs), such as smartphones or laptops, goes hand-in-hand with new applications. However, running computationally demanding applications at the TIEs is constrained by limited battery capacity and energy consumption TIEs. A suitable solution extending life-time to offload huge processing a conventional centralized cloud. Nevertheless, this option introduces significant execution delay consisting delivery off loaded cloud back plus time...

Direct communication between two or more devices without the intervention of a base station, known as device-to-device (D2D) communication, is promising way to improve performance cellular networks in terms spectral and energy efficiency. The D2D paradigm has been largely exploited non-cellular technologies such Bluetooth Wi-Fi but it not yet fully incorporated into existing networks. In this regard, new proposal focusing on integration LTE-A recently approved by 3GPP standardization...

Time-varying requirements of users on communication push mobile operators to increase density base stations. However, the dense deployment conventional static stations (SBSs) is not always economical, for example, when periods peak load are short and infrequent. In such cases, several flying (FlyBSs) mounted unmanned aerial vehicles can be seen as a convenient substitution SBSs. This paper focuses maximization user satisfaction with provided data rates. To this end, we propose an algorithm...

A relaying can significantly improve performance of contemporary mobile networks in terms capacity and/or energy consumption. Nevertheless, an incorporation conventional relay stations into the is usually expensive both capital and operational expenditures for operators. With evolution Device-to-device (D2D) communication, be also facilitated via a user equipment (UE) by means D2D relaying. In relaying, users data others, thus cutting network operators' expenditures. The offers plenty...

The effect of a finite size model for both the nuclear charge and magnetic moment distributions on calculated EPR hyperfine structure have been studied using relativistic four-component method based density functional theory. This approach employs restricted kinetically balanced basis (mDKS-RKB) includes spin-polarization noncollinear spin-density exchange-correlation functionals in unrestricted fashion. Benchmark calculations carried out number small molecules containing Zn, Cd, Ag, Hg....

Recently developed single-root multireference Brillouin-Wigner coupled-cluster (MR BWCC) theory, which deals with one state at a time while employing multiconfigurational reference wave function, is applied to the ground of F2 molecule using two-determinant space level CCSD approximation. The method represents brand-new (CC) approach quasidegenerate problems combines merits two theories: single-reference CC in nondegenerate case and Hilbert MR case. able switch itself from fully degenerate...

The challenge of elimination redundant handovers is getting more significant while femtocells with small radius are deployed in networks. utilization the results to frequent initiation a handover procedure. This paper focuses on an adaptation actual level hysteresis margin according position user cell. commonly used parameter for handovers. purpose this propose mechanism minimum requirements conventional network and user's equipment simple implementation. Evaluations proposal term efficiency...

Small cell networks are currently seen as a new way to satisfy the increasing wireless traffic demand. The proximity of base stations subscribers brings many possibilities for development applications, including offerings based on cloud computing. Smartphones can directly offload applications close stations, provided that these equipped with additional computational and storage resources. concept applied in framework small cells also combine radio computation aspects order optimise service...

In this letter, the goal is to maximize sum capacity of device-to-device (D2D) communication through a reuse each radio channel by multiple D2D pairs while pair can access channels. Since existing approaches cannot be easily extended enable channels in scenario with high interference among pairs, we propose novel resource allocation consisting two phases. an initial phase, all available are assigned Hungarian algorithm so that occupied just one pair. sequentially added individual according...

Abstract Running computationally demanding real‐time applications at the mobile user equipment (UE) is complicated because of limited battery life time UEs. One solution to offload computing tasks a centralized cloud. Nevertheless, this option introduces significant delay consisting in delivery offloaded cloud and back. Such inconvenient for applications. To cope with high delay, concept edge has been introduced. The feasible way enabling enhance small cell base stations (SCeNBs)...

Double trouble: The binding between C60+ and (H2O)4 is surprisingly weak in a charged C60–H2O tetramer complex formed helium nanodroplets (see picture). Doubly C602+ intermediates are proposed to form by charge transfer with He+; these can trigger ion–molecule reactions that may play role molecular synthesis interstellar clouds solar nebula.

To overcome latency constrain of common mobile cloud computing, computing capabilities can be integrated into a base station in networks. This exploitation convergence networks and enables to take advantage proximity between user equipment (UE) its serving lower avoid backhaul overloading due services. concept cloud-enabled small cells is known as cell (SCC). In this paper, we propose algorithm for selection path the UE cell, which performs particular UE. As metrics consider transmission...

Small cell (SC) base stations with cognitive capabilities are seen as an efficient way to cope interference between the SC and macrocell (MBSs). Cognitive SCs may access spectrum by means of overlay or underlay mode. An efficiency mode fully depends on activity users (MUEs), since insufficient resources remain for small (SUEs). Contrarily, main weakness is that it can result in low transmission due restricted power. Apart from both modes, energy consumption should not be disregarded. Thus,...

Device-to-device (D2D) communication, which enables a direct connection between users while bypassing the cellular channels to base stations (BSs), is promising way offload traffic from conventional networks. In D2D optimizing resource allocation requires knowledge of channel gains. However, such hard obtain at reasonable signaling costs. this paper, we show problem can be circumvented by tapping into information provided estimated and surrounding BSs as these are anyway for normal operation...

Water clusters are known to undergo an autoprotonation reaction upon ionization by photons or electron impact, resulting in the formation of (H2O)nH3O+. Ejection OH cannot be quenched near-threshold ionization; it is only partly when complexed with inert gas atoms. Mass spectra recorded water-doped helium droplets show that matrix also fails quench loss. The situation changes drastically codoped C60. Charged C60-water complexes predominantly unprotonated; C60(H2O)4+ and (C60)2(H2O)4+ appear...

This letter focuses on the selection between radio frequency (RF) and visible light communications (VLC) bands for users exchanging data directly with each other via device-to-device (D2D) communication. We target to maximize energy efficiency of D2D communication while outage is minimized. Since VLC channel can vary quickly due possible changes in irradiance incidence angles, we aim reach a quick band decision multi-user scenario based only knowledge received power sum interference from all...

Flying base stations (FlyBSs) can serve space-time varying heterogeneous traffic in the areas, where a deployment of conventional static is uneconomical or unfeasible. We focus on energy consumption FlyBSs serving moving users. For such scenario, rotary-wing are not efficient due to high while hovering at fixed location. Hence, we consider airship-based FlyBSs. these, derive an analytical relation between sum capacity users and spent for flying. show theoretical bounds potential saving with...

The caching paradigm has been introduced to alleviate backhaul traffic load and reduce latencies due massive never ending increase in data traffic. To fully exploit the benefits offered by caching, unmanned aerial vehicles (UAVs) device-to-device (D2D) communication can be further utilized. In contrast prior works, that strictly limits content delivery routes up two hops, we explore a multi-hop communications scenario, where UAVs, UEs, or both relay individual users. this context, formulate...

The method of analytic continuation in the coupling constant combination with use statistical Pad\'e approximation is applied to determination resonance energy and width ${}^{2}{\ensuremath{\Pi}}_{g}$ state ${{\mathrm{N}}_{2}}^{\ensuremath{-}}$. It shown that standard quantum chemistry codes provide accurate data which can be used for constant, inferred an accuracy comparable other more elaborate methods.

In the ionic structure of title compound, [Fe(C12H8N2)3](C9H5N4O2)2·H2O, octahedral tris-chelate [Fe(phen)3](2+) dications [Fe-N = 1.9647 (14)-1.9769 (14) Å; phen is 1,10-phenathroline] afford one-dimensional chains by a series slipped π-π stacking interactions [centroid-to-centroid distances 3.792 (3) and 3.939 Å]. The 1,1,3,3-tetracyano-2-(2-hydroxyethyl)propenide anions, denoted tcnoetOH(-), reveal an appreciable delocalization π-electron density, involving central propenide [C-C 1.383...

We consider a mobile network with users seeking to engage in device-to-device (D2D) communication. Two D2D (DUEs), transmitter and receiver, compose one pair. assume that the pairs reuse single communication channel increase spectral efficiency. Thus, power control is needed manage interference among maximize capacity. address problem of case when only standard cellular gains between DUEs base stations (BSs) are known while not available at all. exploit supervised machine learning determine...