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Wireless Sensor Networks - Washington University in St. Louis

Wireless Sensor Networks - Washington University in St. Louis

Low-Rate Wireless Personal Area Network Physical layer used in ZigBee, WirelessHART, MiWi which add upper layers 10 m reach at 250 kbps (20/40/100 kbps versions) Three Frequency Bands: ¾868.0-868.6 MHz in Europe ¾902-928 Mhz in North America ¾2400-2383.5 MHs worldwide Uses Direct Sequence Spread Spectrum (DSS) BPSK or QPSK modulation IEEE 802.15.4a-2007 added ultra-wideband, and chirp ...

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On Wireless Sensor Networks: Architectures, Protocols ...

On Wireless Sensor Networks: Architectures, Protocols ...

On Wireless Sensor Networks: Architectures, Protocols, Applications, and Management Yazeed Al-Obaisat, Robin Braun University of Technology, Sydney Sydney, Australia [email protected] Abstract With the recent technological advances in wireless commu-nications, integrated digital circuits, and micro electro me-chanical systems (MEMS); development of wireless sensor networks has been ...

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Range-Free Localization in Wireless Sensor Networks with ...

Range-Free Localization in Wireless Sensor Networks with ...

Range-Free Localization in Wireless Sensor Networks with Neural Network Ensembles Jun Zheng * and Asghar Dehghani Department of Computer Science and Engineering, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801, USA; E-Mail: [email protected] * Author to whom correspondence should be addressed; E-Mail: [email protected]; Tel.: +1-575-835-6182. Received: 19 September ...

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J. Sens. Actuator Netw. 2015 4 OPEN ACCESS Journal of ...

J. Sens. Actuator Netw. 2015 4 OPEN ACCESS Journal of ...

J. Sens. Actuator Netw. 2015, 4 275 1. Introduction The proliferation of low power wireless sensor networks (WSNs) and their discreet presence have introduced a new paradigm in data collection and analysis of target parameters in both indoor and

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Issues in Wireless Sensor Networks - IAENG

Issues in Wireless Sensor Networks - IAENG

such a way that they can sens e the phenomena [2]. Akkaya and 1Department of Computer Science, ... as a special class of ad hoc wireless network that are used to provide a wireless communication infrastructure that allows us to instrument, observe and respond to phenomena in the natural environment and in our physical and cyber infrastructure. Even though sensor networks are a special type of ...

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Optimal Placement of Relay Nodes for Energy Efficiency in ...

Optimal Placement of Relay Nodes for Energy Efficiency in ...

Optimal Placement of Relay Nodes for Energy Efficiency in Sens or Networks Sinem Coleri Ergen and Pravin Varaiya Email: {csinem,varaiya}@eecs.berkeley.edu September 24, 2005 Abstract Energy efficient system design in wireless sensor networks h as been previously discussed at different levels of the network proto-col stack so as to provide the maximum possible lifetime of a given network ...

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Disentangling Wireless Sensing from Mesh Networking

Disentangling Wireless Sensing from Mesh Networking

Disentangling Wireless Sensing from Mesh Networking ... An influential argument for combining wireless sens-ing and mesh networking focused on the potential energy gains from multihop communications. Rabaey et al. ob-served that the energy, E tx, necessary to communicate strongly relates to the distance, d, between the endpoints E tx ˘da; where a is the path loss [12]. For indoor networks, a ...

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Ensuring K-Coverage in Wireless Sensor Networks under ...

Ensuring K-Coverage in Wireless Sensor Networks under ...

Ensuring K-Coverage in Wireless Sensor Networks under Realistic Physical Layer Assumptions Antoine Gallais, Jean Carle, David Simplot-Ryl, Ivan Stojmenovic To cite this version: Antoine Gallais, Jean Carle, David Simplot-Ryl, Ivan Stojmenovic. Ensuring K-Coverage in Wire-less Sensor Networks under Realistic Physical Layer Assumptions. 5th IEEE Conference on Sensors (Sensors 2006), Oct 2006 ...

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DEVELOPMENTS ON AN IEEE802.15.4-BASED WIRELESS SENS OR NETWORK

DEVELOPMENTS ON AN IEEE802.15.4-BASED WIRELESS SENS OR NETWORK

DEVELOPMENTS ON AN IEEE802.15.4-BASED WIRELESS SENS OR NETWORK Bart Scheers, Wim Mees, Ben Lauwens Royal Military Academy Department CISS Renaissancelaan 30

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Physical Layer Design in Wireless Sensor Networks for ...

Physical Layer Design in Wireless Sensor Networks for ...

J. Sens. Actuator Netw. 2013, 2 615 1. Introduction Wireless sensor networks based on IEEE Standard 802.15.4 [1] can be considered as an emerging technology that will be widely used in this century.

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DESIGN AND ANALYSIS OF OPPORTUNISTIC MAC PROTOCOLS FOR ...

DESIGN AND ANALYSIS OF OPPORTUNISTIC MAC PROTOCOLS FOR ...

M=GY =1 queuing models, cross-layer optimization models, etc., to rigorously analyze the performance of our proposed MAC protocols in terms of aggregate throughput, access delay, and packet drop rate for both the saturation network case and non-saturation network case. In addition, we conducted extensive simulations to validate

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