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Compressive sensing (CS) is a rising field which have already overcome Nyquist rate. It enables sparse signal recovery with the help of efficient algorithms. It reduces memory requirements and cost of computation. Signal recovery is an important phase in reconstruction of sparse signal. In this paper a comparison is made between two reconstruction algorithms approximate message passing algorithm (AMP)...
Spectrum sensing is an important task to find out the spectrum holes in a given radio spectrum. Spectrum sensing performance is improved with aid of multiple cognitive radios (CRs) in the network and each CR having multiple antennas. In this paper, we are considering that each CR having multiple antennas and improved energy detector (IED) is used for detection of primary user (PU). We have derived...
The application of vibration and acoustic wireless sensor networks (WSN) for intrusion detection has been proposed previously. In such networks, signals produced due to natural disturbances, like wind induced vibration or noise, can lead to excessive computation and data transaction leading to drainage of the power source due to power hungry RF data transmission. Such unwanted bursts of data transaction...
Pulse oximetry is a technique used for measurement of oxygen level (oxygen saturation) of the blood. It is a simple and effortless method for measurement of how well oxygen is being transported to different organs of your body from your heart. Recent trends in the miniature and wearable device concept has fostered a substantial change in the field of biomedical engineering & its product development...
This paper intends to implement a method for automatic measuring of various soil properties using three different sensors including ion selective electrodes (ISEs). Automatic detection of soil macronutrients is beneficial in recording soil nutrient variability for soil reports. The data obtained from the system is printed in these reports along with soil sample number. Ion-selective electrodes (ISEs)...
Wireless Sensor Network (WSN) is composed of high density sensor nodes randomly deployed to monitor a specific phenomenon. Due to high density the data sensed by these nodes is highly redundant and spatially correlated. Sensor node is usually battery operated. Hence, power conservation takes on additional importance. Traditional deployment for WSN is self organizing neighboring discovery on randomly...
The logistics department has an important area of application for technology concerned with Wireless Sensors. The Idea is to deploy Wireless sensor motes in vehicles to study environmental conditions related to that of the carried goods. Using its communication as well as computation capability, wireless sensor motes can detect the occurrence of threshold violation(events) and send according alarming...
Main constraints of wireless sensor networks (WSN) are less memory space, limited power supply, processing speed and availability of bandwidth for communication. The most important challenge in wireless sensor networks is to design energy-efficient data gathering network which increases the life time of wireless sensor networks. In various studies, it is observed that processed data requires less...
This paper presents digital pen for handwritten digit and gesture trajectory recognition for paralyzed patient. The accelerometer based digital pen for paralyzed patient consists of basically three main parts i.e triaxial accelerometer, microcontroller and RF wireless transmission module. This parts used for sensing and collecting accelerations of handwriting and gesture trajectories of hand motions...
The Growth in computer technology in all the facets of the world, and life are growing to the point that everyone needs a computer to carry out their work in everyday life. While using the computer for long hours, little is cared about posture, resulting in body ache and some harmful everlasting effects on the body. Computer users can protect themselves from those health risks by implementing proper...
This paper focuses on enhancement of lifetime in an event driven wireless sensor network (WSN). The network lifetime is enhanced by optimal deployment of sensor nodes in a given region as premature shortening of life takes place leading to uneven consumption of energy. In the proposed scheme, the senor nodes are linearly deployed over the sub-regions and the inter-node distance between the sensor...
Bio-signal, a signal generated by body can be used as an information source to drive and control many devices. Various such signals are as: Electroencephalogram (EEG) generated by brain, Electrocardiogram (ECG) generated by heart, Electromyogram generated by muscles and Electrooculogram generated by eyes. Here, EEG signal measured along the scalp and generated by neurons of brain has been under focus...
This paper suggests a Fuzzy logic technique for designing the control system for the movement of the shoulder joint for prosthetic arm having two degrees of freedom. FIS GUI in MATLAB & Simulink software is used for this objective. The main objective of this paper is to obtain movement of the shoulder joint in intermediate positions using Mamdani fuzzy control logic. The two inputs used in this...
In our current scenario faulty street lights may lead accident and also encourage crime. But our system has the function to detect the faults in the street light manually. It takes more time to detect and rectification. Our current scenario primarily depends on electrical inspectors to frequently check the street lights. It also unwanted work, even the system working well. Here the new method is proposed...
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