763 research outputs found

    System Architecture for Smart Ubiquitous Health Monitoring System with Area Optimization in Multiple On-chip Radios Scenario

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    Realization of ubiquitous connectivity in remote health monitoring is a primary issue yet to be addressed. In this paper we propose a system architecture for IoT enabled remote health monitoring with smart transmission which can also aid in ubiquitous connectivity by targeting multiple on-chip radios (IEEE 802.15.4 & IEEE 802.11b in this case). We also optimize the area overhead by using modified IEEE 802.15.4-PHY architecture which uses Raised Cosine pulse shaping and the BER performance is also analyzed for same. The modified IEEE 802.15.4-PHY when used in multiple radio architecture along with IEEE 802.11b can result in significant area savings by multiplexing the commonly available functional units. The proposed architecture also aids for significant energy savings due to the presence of smart transmission technique. Performance of the proposed architecture is analyzed using energy consumption and BER as key performance metrics. The BER performance shows that the usage of raised cosine pulse shaping for IEEE 802.15.4-PHY achieves significant amount of area savings without losing any performance in BER

    A survey on wireless body area networks for eHealthcare systems in residential environments

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    The progress in wearable and implanted health monitoring technologies has strong potential to alter the future of healthcare services by enabling ubiquitous monitoring of patients. A typical health monitoring system consists of a network of wearable or implanted sensors that constantly monitor physiological parameters. Collected data are relayed using existing wireless communication protocols to the base station for additional processing. This article provides researchers with information to compare the existing low-power communication technologies that can potentially support the rapid development and deployment of WBAN systems, and mainly focuses on remote monitoring of elderly or chronically ill patients in residential environments

    Internet of Things Strategic Research Roadmap

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    Internet of Things (IoT) is an integrated part of Future Internet including existing and evolving Internet and network developments and could be conceptually defined as a dynamic global network infrastructure with self configuring capabilities based on standard and interoperable communication protocols where physical and virtual “things” have identities, physical attributes, and virtual personalities, use intelligent interfaces, and are seamlessly integrated into the information network

    Design Experiences on Single and Multi Radio Systems in Wireless Embedded Platforms

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    The progress of radio technology has made several flavors of radio available on the market.Wireless sensor network platform designers have used these radios to build a variety of platforms. Withnew applications and different types of radios on wireless sensing nodes, it is often hard to interconnectdifferent types of networks. Hence, often additional radios have to be integrated onto existingplatforms or new platforms have to be built. Additionally, the energy consumption of these nodes have to be optimized to meetlifetime requirements of years without recharging.In this thesis, we address two issues of single and multi radio platform designfor wireless sensor network applications - engineering issues and energy optimization.We present a set of guiding principles from our design experiences while building 3 real life applications,namely asset tracking, burglar tracking and finally in-situ psychophysiological stress monitoring of human subjects in behavioral studies.In the asset tracking application, we present our design of a tag node that can be hidden inside valuable personal assets such asprinters or sofas in a home. If these items are stolen, a city wide anchor node infrastructure networkwould track them throughout the city. We also present our design for the anchor node.In the burglar tracking application, we present the design of tag nodes and the issueswe faced while integrating it with a GSM radio. Finally, we discuss our experiencesin designing a bridge node, that connects body worn physiological sensorsto a Bluetooth enabled mobile smartphone. We present the software framework that acts as middleware toconnect to the bridge, parse the sensor data, and send it to higher layers of the softwareframework.We describe 2 energy optimization schemes that are used in the Asset Tracking and the Burglar Tracking applications, that enhance the lifetime of the individual applications manifold.In the asset tracking application,we design a grouping scheme that helps increase reliability of detection of the tag nodes at theanchor nodes while reducing the energy consumption of the group of tag nodes travelling together.We achieve an increase of 5 times improvement in lifetime of the entire group. In the Burglar Tracking application, weuse sensing to determine when to turn the GSM radio on and transmit data by differentiatingturns and lane changes. This helps us reduce the number of times the GSM radio is woken up, thereby increasing thelifetime of the tag node while it is being tracked. This adds 8 minutes of trackablelifetime to the burglar tracking tag node. We conclude this thesis by observing the futuretrends of platform design and radio evolution

    A critical analysis of research potential, challenges and future directives in industrial wireless sensor networks

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    In recent years, Industrial Wireless Sensor Networks (IWSNs) have emerged as an important research theme with applications spanning a wide range of industries including automation, monitoring, process control, feedback systems and automotive. Wide scope of IWSNs applications ranging from small production units, large oil and gas industries to nuclear fission control, enables a fast-paced research in this field. Though IWSNs offer advantages of low cost, flexibility, scalability, self-healing, easy deployment and reformation, yet they pose certain limitations on available potential and introduce challenges on multiple fronts due to their susceptibility to highly complex and uncertain industrial environments. In this paper a detailed discussion on design objectives, challenges and solutions, for IWSNs, are presented. A careful evaluation of industrial systems, deadlines and possible hazards in industrial atmosphere are discussed. The paper also presents a thorough review of the existing standards and industrial protocols and gives a critical evaluation of potential of these standards and protocols along with a detailed discussion on available hardware platforms, specific industrial energy harvesting techniques and their capabilities. The paper lists main service providers for IWSNs solutions and gives insight of future trends and research gaps in the field of IWSNs

    Design and Development of Smart, Intelligent & LOT Enabled Remote Health Monitoring System

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    Drastic developments in the area of Wireless Sensor Networks (WSNs) have paved a path for ap- plications in so called Internet of Things (IoT). Some major applications include remote health monitoring, environment monitoring, smart grids etc. In this work we have identified the primary issues that IoT architectures are facing and developed a system architecture to address the issues identified. IoT architectures primarily face the power constraints due to their battery dependency in remote deployment such as remote health monitoring. Other issue is the hyper connectivity scenario, where the data generated by the sensor networks should have to be limited for efficient management of networks. The proposed architecture consists of an intelligent data transmission mechanism with smart sensing and IEEE 802.15.4 - PHY is considered for communication facility

    A comprehensive survey of wireless body area networks on PHY, MAC, and network layers solutions

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    Recent advances in microelectronics and integrated circuits, system-on-chip design, wireless communication and intelligent low-power sensors have allowed the realization of a Wireless Body Area Network (WBAN). A WBAN is a collection of low-power, miniaturized, invasive/non-invasive lightweight wireless sensor nodes that monitor the human body functions and the surrounding environment. In addition, it supports a number of innovative and interesting applications such as ubiquitous healthcare, entertainment, interactive gaming, and military applications. In this paper, the fundamental mechanisms of WBAN including architecture and topology, wireless implant communication, low-power Medium Access Control (MAC) and routing protocols are reviewed. A comprehensive study of the proposed technologies for WBAN at Physical (PHY), MAC, and Network layers is presented and many useful solutions are discussed for each layer. Finally, numerous WBAN applications are highlighted

    Optimization of A Smart IOT Gateway

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    In recent years, the Internet of Things (IOT) has attracted many attentions. It allows a number of objects that have been embedded with wired or wireless communication interfaces to automatically communicate and interact with each other. The IOT is a system, combination of embedded controllers, sensors, software’s and network. After internet and mobile communication, IOT is regarded as the third wave of information because of its huge market prospects. The development of IOT can support a variety of applications including Intelligent Art, Intelligent Logistics, Intelligent Medicine & Healthcare, Intelligent Transportation, Intelligent Power, Smart Life etc. IOT Gateway plays an important role in IOT applications since it bridges between wireless sensor networks with traditional communication networks or internet. This paper includes an IOT Gateway system based on Zigbee and Wi-Fi protocols according to the presented data transmission between wireless sensor networks and mobile communication networks, typical IOT application scenarios and requirements from telecom operators, protocol conversion of different sensor network protocols, and control functionalities for sensor networks, and an implementation of prototyping system and system validation is given
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