The relay channel consists of a transmitter input x1, a relay input x2, a relay output y2 and a receiver output y3. In this report, we combine a degraded semi-deterministic relay channel with a semi-deterministic orthogonal relay channel to obtain a new mixture relay channel. For the new mixture relay channel, a combination of the compress-and-forward strategy and the partial decode-and-forward...

Recently, the problem of signal representation in terms of basis vectors from a large, ”overcomplete”, spanning dictionary has been the focus of much research. Achieving a succinct, or ”sparse”, representation is known as the problem of best basis representation. We consider methods which seek to solve this problem by sequentially building up a basis set for the signal. Three distinct algorithm...

Both classical Forward Selection and the more modern Lasso provide computationally feasible methods for performing variable selection in high dimensional regression problems involving many predictors. We note that although the Lasso is the solution to an optimization problem while Forward Selection is purely algorithmic, the two methods turn out to operate in surprisingly similar fashions. Our ...

Introduction: Improving the capabilities of multimedia communications is the target for third generation mobile communications systems. A variety of data services from low to very high bit rates is required; most services offered by current mobile radio systems are limited to voice and voice-band data services. Recently, direct sequence code division multiple access @S-CDMA) [l] has been drawin...

breast cancer is the most common type of cancer among women. the important key to treat the breast cancer is early detection of it because according to many pathological studies more than 80% of all abnormalities are still benign at primary stages; so in recent years, many studies and extensive research done to early detection of breast cancer with higher precision and accuracy.infra-red breast...

Simultaneous spectrophotometric estimation of Fluoxetine and Sertraline in tablets were performed using UV–Vis spectroscopic and Artificial Neural Networks (ANN). Absorption spectra of two components were recorded in 200–300 (nm) wavelengths region with an interval of 1 nm. The calibration models were thoroughly evaluated at several concentration levels using the spectra of synthetic binary mix...