In this paper, we present preliminary results on achievables rates in half-duplex cooperative multiple access channels (CMAC). We show that the upper bound on the capacity of the half-duplex CMAC can be solved using convex optimization techniques. Under a Gaussian model, we study the maximal achievable rate by every node in the network. We propose a number of scenarios, encompassing existing an...

We propose Chaskey: a very efficient Message Authentication Code (MAC) algorithm for 32-bit microcontrollers. It is intended for applications that require 128-bit security, yet cannot implement standard MAC algorithms because of stringent requirements on speed, energy consump­ tion, or code size. Chaskey is a permutation-based MAC algorithm that uses the Addition-RotationXOR (ARX) design method...

We propose Chaskey: a very efficient Message Authentication Code (MAC) algorithm for 32-bit microcontrollers. It is intended for applications that require 128-bit security, yet cannot implement standard MAC algorithms because of stringent requirements on speed, energy consumption, or code size. Chaskey is a permutation-based MAC algorithm that uses the Addition-RotationXOR (ARX) design methodol...

A neural-network controller operating in discrete time is shown to result in stable trajectory tracking for rigid and elastic-joint robots. The technique assumes continuous-time state feedback. The proof of stability uses discrete-time Lyapunov functions. For the elastic-joint case, a discrete-time version of the adaptive backstepping technique is used. The result is that the neural network can...

A pattern-recognition method for flatness defect based on CMAC neural network is proposed, and a flatness fuzzy controller based on the pattern-recognition results is designed in this paper. Pattern-recognition and controller are designed into a single unit, in which CMAC recognizes the membership grade relative to six basic modes of common flatness defect and realizes the seeking function of t...

This paper presents two modifications to the BoxesASEIACE reinforcement learning algorithm to improve implementation efficiency and performance. A state history queue (SHQ) replaces the decay computations associated with each conwl state, decoupling the dependence of computational demand from the number of conml states. A dynamic link table implements CMAC state association to decrease training...

Background Manual in line axial stabilization (MIAS) technique is recommended for stabilizing the cervical spine suspected injuries, but creates special challenges airway management. The present study compares two different video laryngoscope (VL) namely CMAC D blade (CMAC) and glidescope 4 (GL) intubation patients with a simulated difficult by applying MIAS. Methodology This was hospital based...

High-cadence Earth observation smallsat images offer potential for near real-time global reconnaissance of all sunlit cloud-free locations. However, these data must be corrected to remove light-transmission effects from variable atmospheric aerosol that degrade image interpretability. Although existing methods may work, they require ancillary delays output, impacting their most valuable applica...

La micro y la pequeña empresa en Perú se encuentra constante desarrollo desde hace cuarenta años. Desde entonces, aparecieron las cajas municipales de ahorro crédito (CMAC), que tienen autonomía administrativa, financiera económica, participan descentralización los servicios financieros. Sin embargo, el crecimiento cartera colocaciones viene acompañado elevados indicadores morosidad relacionado...