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Wireless communication technology is spreading rapidly to all areas of our lives. The technology, which has a wide range of applications from radios, intelligent home systems, automation applications to GPS units, was used in monitoring the workers working in mines in this study. Most of the mining area underground mining is risky and the possibility of accident (gas jams, the explosion and dents,...
Intruder Detection is needed in order to monitor sensitive passages or gateways. These passages are usually existing in airports, police stations, government buildings, courts or even in special laboratories, like nuclear or chemical laboratories. For security or safety purposes, nobody is usually allowed to walk through these passages without permission and during the working hours. Video streaming...
Trash Collection and management in residential locality is the basic considerations referred to in Smart Cities. The concept of trash collection in India is quite tedious. For efficient trash collection, we use the concept of Internet of Things (IOT) which acts as a backbone Technology. Surveillance systems can be used to improve Quality of Service in Trash collection. “This paper proposes an advanced...
Identification of malfunctioned PV panels in a large-scale PV plant requires panel-level health checks. A power line communication (PLC) on PV cables may be helpful for gathering health monitoring status (e.g., voltage and temperature) from each panel. However, conventional PLCs, work in parallel-connected cases, cannot be simply applied to series-connected cases, whose configurations are very common...
Tire pressure monitoring system (TPMS) requirement is increasing everyday because of the increase in number of accidents due to sudden burst or loss of pressure as it is not possible to manually check the tire condition while running. There is a need of an automated system which can alert the driver about the tire condition and take the corrected actions. Speed plays a major role in the performance...
Reconfiguration plays a vital role in resource utilization. The functional, interconnect testing of digital circuits is done using Boundary Scan Trainer (BST) kit. The faulty cores if replaced by spare ones in real time reduce the switching time. This procedure is implemented in wireless network system also. The proposed work focuses on wireless communication among nodes, grouping them as different...
New digital radio systems in the medium wave band are emerging and they require accurate planning algorithms in order to improve QoS. In the MW band there is a lack of prediction parameters as regards the ionospheric propagation, especially for Near vertical Incidence NVIS sky wave. To do this, the NVIS channel features are provided in this paper, such as field strength variability and the time interval...
We present the monitoring of ∼4 years of daily VLF amplitude curves using two parallel propagation paths from the South America VLF Network (SAVNET). During this period, the time of occurrence (Teminator Times) of deep amplitude minima were measured. We discuss typical properties of West-to-East VLF subionospheric propagation like the seasonal effect on the temporal evolution of Terminator Times,...
We target body-wearable sensor networks, in which sensor nodes are strategically placed on the human body and the wireless communications are conducted on/off the surface of the body. The results, obtained by performing multiple experiments in outdoor environments, are presented. A single on body transmitter communicates with a single receiver node, which is located on the body or off the body at...
The Antarctic-Arctic Radiation-belt (Dynamic) Deposition — VLF Atmospheric Research Konsortium (AARDDVARK) provides a network of continuous long-range observations of the lower-ionosphere in the polar regions. The network of sensors detect changes in ionisation levels from ∼30–90 km altitude, globally, continuously, and with high time resolution, with the goal of increasing the understanding of energy...
We report here preliminary observations of phase and amplitude perturbations in VLF signal propagating in the Earth-ionosphere waveguide, monitored at low latitude station Varanasi using SoftPAL Receiver. Phase and amplitude perturbations (trimpis) on VLF signals consists of a sudden change in phase and amplitude of the transmitter signal followed by a slow recovery to the initial levels as the ionization...
This contribution presents experimental results and conclusions of an experiment focused on the video signal transmission in the frequency bands allocated for the Short Range Devices (SRD). We restrict ourselves only to slow — moving mobile application. Additional condition is to employ low cost simple devices based on ordinary and affordable third party transmission modules. Frequency modulation...
During changing sun activity, the ionosphere is responding accordingly and therefore it is interesting to observe the propagation behavior of shortwave bands. For the above mentioned purpose we are designing a monitoring payload for an experimental cubesat satellite called PSAT. The payload consists of a receiver, which is able to receive SSB modulated narrowband signals in 28 MHz uplink band and...
Body-wearable devices for physiological monitoring are fast becoming a reality-by 2014, 420 million wearable wireless devices are expected to be in use, of which 90% will be for sports and fitness applications. We envisage the use of ultra-lightweight wearable devices for monitoring athletes in field sports such as soccer for quantifying, assessing and improving game performance. To this end, in this...
In this paper indoor wireless Infrared (IR) technology for healthcare monitoring is studied. Monitoring provides a continuous and reliable vital sign measurement to secure patient staying in the hospital. Considering that patient moving is inevitable, we focus on a mobile IR channel based on diffuse propagation. A model of mobile channel is developed through the study of statistical distributions...
This contribution considers the accuracy limits of ultra-wideband localization systems dedicated to large-scale applications. Industrial environments are known for being extremely difficult for wireless communication, mainly because of the high concentration of large metal objects, such as containers or machines; leading to strong multipath propagation. In this work a detailed 3D model of the warehouse...
Wireless sensor network (WSN) technology is a new and modern technology that has already been implemented in a wide variety of scenarios and its applications are growing every day. In this paper we present a measurement campaign to obtain more accurate small-scale near ground channel model to feed realistic simulation for the forest environment monitoring and control using WSN technology. This may...
This paper focuses on the spectrum monitoring problem, i.e., detecting reappearing primary users during secondary transmissions in cognitive radio systems. The filter bank multicarrier (FBMC) concept is used as the basis as it facilitates simultaneous spectrum sensing and reception of secondary transmissions using the same device. With FBMC it is possible to support, in a spectrally efficient manner,...
Cognitive sensor network (CogSeNet) is an intelligent based wireless sensor network system which relies on cognitive processes to provide a dynamic capability in configuring wireless sensor network. CogSeNet is a network structure formed by sensor nodes equipped with cognitive modules allowing them to observe their operating environment and allowing a decision can be derived. A series of actions result...
In many dynamic spectrum access networks, it is necessary for secondary users to monitor the frequency band in which they are communicating so that they can determine if the primary user has begun transmission. Traditional sensing methods require the transmitters of the secondary users to be silent while spectrum monitoring is performed. Statistics that are derived easily in a communications receiver...
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