Many Wireless Sensor Network (WSN) applications operate autonomously in unreliable or inaccessible environments, precluding maintenance or human intervention. Redundant deployment schemes are usually considered in this scenario, making the network resilient to failure and environmental changes. Furthermore, sleep-scheduling techniques can also be applied, enabling redundant nodes to turn off their radios, while active nodes […]
Tag Archives : Ns2 simulation
A SiGe BiCMOS power amplifier (PA) with a switchable output matching network (OMN) is designed and measured. A MOS switch is incorporated in the OMN of the PA. According to the state of the switch, the proposed PA can be operated in either the high-power (HP) or low-power (LP) modes. In the […]
SiGe BiCMOS power amplifier with a switchable output matching network for efficiency enhancement
We address the problem of identifying the topology of an unknown weighted, directed network of LTI systems stimulated by wide-sense stationary noises of unknown power spectral densities. We propose several reconstruction algorithms by measuring the cross-power spectral densities of the networkresponse to the input noises. The measurements are based on a series of […]
Topology Identification of Directed Dynamical Networks via Power Spectral Analysis
Based on the fact that the rolling bearing fault vibration signals are susceptible to Gauss noise, a fault diagnosis of rolling bearing method using higher-order cumulants and back propagation (BP) neuralnetwork is proposed. In this paper, the higher-order statistics of the vibration signals are calculated as feature vectors, including the third-order […]
Rolling bearing fault diagnosis based on higher-order cumulants and BP neural network
We demonstrate how maximum entropy (MaxEnt) allocation strategies can optimally determine links within a flexgrid elastic optical network requiring multiple fiber-pairs to support 100% capacity growth with 34.3% improvement in the uniformity of spectrum allocations.
Multiple fiber, flexgrid elastic optical network design using MaxEnt optimization
Cellular STEM (Science, Technology, Engineering, and Mathematics) is a system conceived to interface computational/ visualization engines to SMS/MMS messaging for the purpose of enhancing STEM Education. The system allows users to send processing request to a computational/visualization engine (e.g. MATLAB, Octave) via SMS or MMS and receive the processed data […]
Cellular STEM: Promoting Interest in Science, Technology, Engineering, and Math Education Using Cellular Messaging, Cloud Computing, and Web-Based Social Networks
Rational approximation of frequency-dependent network equivalents with vector fitting (VF) is widely used in power system analysis; however, a detailed examination of methods to determine the order of the model has not been reported. The traditional order identification method of the frequency response resonance peak is conservative, as demonstrated in this paper. […]
A Fast Method to Identify the Order of Frequency-Dependent Network Equivalents
Echo state neural networks (ESNs) provide an efficient classification technique for spatiotemporal signals. The feedback connections in the ESN topology enable feature extraction of both spatial and temporal components in time series data. This property has been used in several application domains such as image and video analysis, anomaly detection, and speech […]
Memristive computational architecture of an echo state network for real-time speech-emotion recognition
In wireless sensor networks securing code update is essential for many crucial military applications. The nodes deployed in border areas in the military region called the border sensor nodes are the more sensitive nodes. The border sensor nodes need to do some special tasks compared to other intermediate sensor nodes. […]
Framework for Secure Code Updates for Wireless Sensor Nodes
Fatigue driving has been the fatal latent danger of automobile security, so it is important to research the fatigue driving detection method to improve the traffic security condition. EEG can reflect the driver’s brain activity directly. It is the most precise and objective method for fatigue driving detection. According to the character of […]