Hybrid methods represent a classic discretization paradigm for elliptic equations. More recently, hybrid methods have been formulated for convection-diffusion problems, in particular compressible fluid flow. In [25], we have introduced a hybrid mixed method for the compressible Navier-Stokes equations as a combination of a hybridized DG scheme for the convective terms, and an H(div,Ω)-method fo...

In this paper the throughput performance of Simple Automatic Repeat reQuest (ARQ) and Hybrid type-II ARQ schemes over Rayleigh fading channels are studied. Some new hybrid type-II schemes based on Rate Compatible Punctured Convolutional (RCPC) codes are proposed which can be regarded as a combination of simple ARQ and traditional hybrid type-II ARQ schemes. It is shown that the suggested scheme...

Pay-for-performance (P4P) pricing schemes such as pay per click and pay per action have increased in popularity in Internet advertising. Meanwhile, pay-per-impression (PPI) schemes persist, and several publishers have begun to offer a hybrid mix of PPI and P4P schemes. Given the proliferation of pricing schemes, this study examines the optimal choices for publishers. The authors highlight two-s...

In this report, two hybrid ARQ error control schemes are proposed for NASA near earth satellite communications. Both schemes are adaptive in nature, and employ cascaded codes to achieve both high reliability and throughput efficiency for high data rate file transfer. TWO HYBRID ARQ ERROR CONTROL SCHEMES FOR NEAR EARTH SATELLITE COMMUNICATIONS

A set of hybrid and adaptive prefetching schemes are considered in this paper. The prefetchers are hybrid in that they use combinations of Stride, Sequential and C/DC prefetching mechanisms. The schemes are adaptive in that their aggressiveness is adjusted based on feedback metrics collected dynamically during program execution. Metrics such as prefetching accuracy and prefetching timeliness ar...

Practical reasoning typically requires a variety of argumentation schemes to be used together to solve problems and make decisions. For example, a legal case may raise issues requiring argument from precedent cases, rules, policy goals, moral principles, jurisprudential doctrine, social values and evidence. We present an extensible software architecture which allows diverse computational models...

We investigated the performances of the diversity combining and the adaptive combining schemes. Based on the results, we propose a hybrid combining for a dual smart antenna system at handsets for the 3GPP WCDMA system and present the performance of the hybrid combining scheme. The proposed hybrid combiner intends to exploit the advantages of the two combining schemes. We considered two differen...

In {J. Comput. Phys. 229 (2010) 8105-8129}, we studied hybrid weighted essentially non-oscillatory (WENO) schemes with different indicators for hyperbolic conservation laws on uniform grids for Cartesian domains. In this paper, we extend the schemes to solve two-dimensional systems of hyperbolic conservation laws on curvilinear grids for non-Cartesian domains. Our goal is to obtain similar adva...

This paper proposes improved schemes for hybrid STBC systems. The hybrid space-time block codes (STBC) system is a combination of STBC scheme and SM scheme. It is aimed to obtain both diversity gain and spectral efficiency gain. In hybrid STBC, conventional schemes can’t achieve good BER performance of STBC symbols due to interference from other symbols. The proposed scheme improves BER perform...

The symbol-error rate (SER) of a quadrature subbranch hybrid selection/maximal-ratio combining scheme for 1-D modulations in Rayleigh fading under employment of the generalized receiver, which is constructed based on the generalized approach to signal processing in noise, is investigated. At the generalized receiver, N diversity branches are split into 2N in-phase and quadrature subbranches. Tr...