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Wireless standardization activities such as Bluetooth V4.x have led to an explosive growth in innovative short-range wireless devices capable of providing various services to assist everyday life. Allowing Machine-to-Machine (M2M) communication between these M2M devices also enable new commercial service opportunities. Typically, short range M2M devices need another capable device such as a smartphone...
Our AMRITA remote triggered lab (RT Lab) for wireless sensor networks (WSN) offer the students and researchers, an easy, efficient, interactive and user friendly environment to trigger their inquisitiveness by providing them with the sensors, equipments, hardwares and study materials for conducting the lab experiments. RT Lab offers a web-based e-learning platform for the registered users to perform...
Low Power Wireless Health Monitoring System (LoWHMS) is a sensor network which aims to monitor vital signs of a patient remotely. It provides real time feedback to medical personnel in order to alert them when life-threatening changes occur. The network is a self-healing network so that it can get reconfigured when the network links are broken. Ultra-Low power microcontrollers are used to reduce the...
The use of a Wireless Sensor Network (WSN) has increased in the last years in many different fields. One of the main advantages of WSNs is the fast data acquisition thanks to the data gathering systems that can archive, process and send the collected data through Internet or store them in different formats. These data archiving and processing is very useful for water quality monitoring. The monitoring...
In home automation (HA) industry, various roles are involved such as device manufactures, system integrators, and installers. Engineering tools are required not only to improve installation efficiency and reduce the engineering cost, but also to simplify information exchange among different stakeholders. In this paper, a RESTful information exchange method among installer-friendly engineering tools...
Although home automation (HA) systems in the wired domain are widely accepted by consumers, in today's industry, the mega trend is steering HA systems along a wireless way. Theoretically, wireless solutions are able to provide HA systems with more flexibility and thus reducing engineering costs. In practice, however, deploying wireless HA systems actually requires more costs and efforts due to the...
Wireless sensor networks (WSN) provide attractive solutions for data exchange in a variety of applications from military surveillance to medical and environmental monitoring. The commonality in all such applications is that the data collected in some nodes of the network is needed at some other nodes, for instance in a data collector node. The nodes are typically limited in terms of power, memory,...
In this paper, we propose a kind of novel energy-efficient programming approach for microcontroller units which helps to minimize processing power costs of any self-sustainable sensor device. This approach is based on an event driven programming principle taking advantage of flag-based logic. The framework called Entity Dust Container (EDC) was introduced for this purpose. Significant power savings...
While the embedded class processors found in commodity palmtop computers continue to become increasingly capable, various wireless connectivity functions on them provide new opportunities in designing more flexible yet smarter wireless sensor networks (WSNs), and utilizing the computation power in a way we could never imagine before. Designing Lynx, a selforganizing wireless sensor network (SOWSN),...
We propose new signature schemes we call mAggSig to achieve sensor authentication and data integrity in Wireless Sensor Networks. mAggSig blends both properties of mediate signatures and aggregate signatures. The proposed schemes are secure under the standard RSA assumption in the random oracle model. We analyze our proposed schemes and estimate the overhead by implementation.
Automatic Meter Reading (AMR) is one of the key issues in modern energy efficiency technologies, which are expected to bring on great benefits to both customers and utility companies (electricity, gas and water). Several efforts have been recently made in developing suitable communication protocols for metering data management and transmission. In order to match the cost requirements for the water...
PhyNetLab is a Wireless Sensor Network (WSN) test bed for conducting research on ultra-low power electronics for WSN, energy harvesting, energy-neutral devices, suitable communication protocols and software strategies focussing on implementations in the field of materials handling and warehousing. The interaction and data exchange between machines, handling systems and storage facilities is important;...
Transient departure process of outgoing packets in a node of a wireless sensor network with energy saving mechanism based on threshold activation of the radio transmitter/receiver is investigated. A finite-buffer queueing system of the GI/M/1-type with N-policy, in which the transmission after each idle period is being initialized only after reaching a threshold of N packets waiting in the buffer,...
This paper presents a prototype indoor navigation system for the blind based on wireless sensor network coupled with a haptic feedback glove. The system uses Received Signal Strength Indicator (RSSI) to continuously triangulate the position of the Vision Impaired (VI) person. A number of most relevant destinations can be assigned to pushbuttons on a haptic glove. Upon receiving input from the user...
The success of pervasive smart environments lies in the capacity to involve visitors to interact with them. It is essential for retail stores. In this paper we describe the setting-up of a low cost system for the indoor localization and customer interaction, developed with a complex infrastructure of wireless embedded sensors. The creation of a responsive store allows customers to connect the real...
In this work we present a GIS web-based open source platform for wireless in situ geosensor data visualization and distributed geoprocessing. Emphasis is put on: i) visualization of sensor measurements and sensor location on a map; ii) geoprocessing of these data; iii) and, visualization of geoprocessing results on a map. The platform combines the Open Geospatial Consortium (OGC) Sensor Web Enablement...
The keystone of many applications associated to the vision of the Internet of Things is a distributed measurement and data acquisition system. Its design represents a major challenge, because it must enable concurrent measurement of different signals, with heterogeneous sensors and communication protocols. It must also be secure and scalable (in the sense of low marginal cost of adding new features...
Wireless Body Area Network over Software Defined Radio (SDR) Platform is the solution towards providing ubiquitous wireless health monitoring of patients over Internet. In this paper, a system is designed to enable ECG signals to be compressed and communicated to remote server at regular intervals over SDR platform comprised of Wireless Open Access Research Platform boards. To enable this, a TCP/IP...
Nodes in a sensor network are traditionally used for sensing and data forwarding. However, with the increase of their computational capability, they can be used for in-network data processing, leading to a potential increase of the quality of the networked applications as well as the network lifetime. Visual analysis in sensor networks is a prominent example where the processing power of the network...
Mobile Agents (MAs) are referred to as autonomous application programs with the inherent ability to move between nodes towards a goal completion. In the context of Wireless Sensor Networks (WSNs), MAs may be used in the process of combining data from different sources aiming at maximizing the useful information content. MAs have been initially developed to replace the Client/Server model which exhibits...
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