In this paper, we consider a single-cell multi-user orthogonal frequency division multiple access (OFDMA) network with one unmanned aerial vehicle (UAV), which works as an amplify-and-forward relay to improve the quality-of-service (QoS) of user equipments (UEs) in cell edge. Aiming throughput while guaranteeing fairness, jointly optimize communication mode, subchannel allocation, power and UAV...

in this paper, financial services in the iranian as a sector with a leontief production function, this sector buys inputs from other sectors for its productions and provides services to expedite the cash fellows and risk transformation to other sectors, the first relations are called backward linkage and the later relations are called forward linkage, for quantification of the linkage , employm...

In non-linear system identification the set of non-linear models is very rich and the number of parameters usually grows very rapidly with the number of regressors. In order to reduce the large variety of possible models as well as the number of parameters, it is of great interest to exclude irrelevant regressors before estimating any model. In this work, three existing approaches for regressor...

Cooperative relay communication in a fading channel environment under the orthogonal amplify-and-forward (OAF), non-orthogonal and orthogonal selection decode-andforward (NSDF and OSDF) protocols is considered here. The diversity-multiplexing gain tradeoff (DMT) of the three protocols is determined and DMT-optimal distributed space-time code constructions are provided. The codes constructed are...

Orthogonal and forward light-scattering properties of lymphocytes were measured from patients with different lymphocytic diseases in order to determine the potential value of light scattering as a screening device. Monitoring of orthogonal light scattering of lymphocytes of a B-cell chronic lymphocytic leukemia patient during splenic irradiation (SI) revealed the selective decrease of malignant...

Selection of features is one of the important tasks in the application like Speaker Identification (SI) and other pattern recognition problems. When multiple features are extracted from the same frame of speech, it is expected that a feature vector would contain redundant features. Redundant features confuse the speaker model in multidimensional space resulting in degraded performance by the sy...

In this paper, a novel manifold learning algorithm for face recognition and gender classification ‐ orthogonal nearest neighbour feature line embedding (ONNFLE) ‐ is proposed. Three of the drawbacks of the nearest feature space embedding (NFSE) method are solved: the extrapolation/interpolation error, high computational load and non‐orthogonal eigenvector problems....

This paper investigates the performance of a new framework for low-outage downlink non-orthogonal multiple access (NOMA) using coordinated direct and relay transmission (CDRT) scheme with links to both near-user (NU) far-user (FU). Both amplify-and-forward decode-and-forward relays are considered. In this framework, NU combines signals from base-station at each stage successive interference can...

Combining orthogonal least squares (OLS) model selection with local regularisation or smoothing leads to efficient sparse kernel-based data modelling. By assigning each orthogonal weight in the regression model with an individual regularisation parameter, the ability for the OLS model selection to produce a very parsimonious model with excellent generalisation performance is greatly enhanced.