directional sensor
Target coverage through distributed clustering in directional sensor networks
... A directional sensor network (DSN) is composed of a large number of directional sensor devices that send sensed- event reports to a ...the directional sensors have limited range of ...
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Heuristic solutions to the target identifiability problem in directional sensor networks
... in directional sensor networks, as it does not always hold ...a directional sensor network - this leads to the definition of the Maximum Target Identifiability- Aware Utility with Minimum ...
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Maximizing Strong Barriers in Lifetime-Heterogeneous Directional Sensor Network
... —Directional sensor network (DSN) has been widely used to detect intrusions and provide fine-grained border surveil- ...of sensor nodes haven’t been taken into ...a sensor barrier leads to ...
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Learning automata-based solution to target coverage problem for directional sensor networks with adjustable sensing ranges
... Wireless sensor nodes are electronic devices that are capable of gathering, storing, and processing environmental information, and they can communicate with other sensor nodes via the wireless ...wireless ...
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Energy Efficient MAC Protocol for Directional...
... Sensor networks have consistently relied on Radio Frequency (RF) to provide connectivity between various sensor nodes and Cluster Head (CH). This paper provides potential role of Free Space Optical (FSO) ...
6
Noise sensing energy harvesting wireless sensor network nodes
... all sensor states must either be sent to a single computing node or exchanged with all nodes in a mesh-like ...a directional sensor network: CGA and ...
240
Energy-efficient MAC Protocol using Directional Antennas in IEEE 802.11- Based Wireless Sensor Networks
... in the course of data transmission due to some factors (e.g., interferences from neighboring sensor nodes, link quality, etc.) which may affect applicable bits transfer rate, cause packet corruption and may ...
10
Evaluation of sensor, environment and operational factors impacting the use of multiple sensor constellations for long term resource monitoring
... This chapter delves into the details necessary to implement the goals and objectives addressed in Chapter 2. In Section 4.1, the validation strategy used in comparing the DIRSIG to other radiative transfer models are ...
307
Directional pattern synthesis in circular arrays of directional antennas
... It was shown by Longstaff, Chow and Davies (1) that the far field directional pattern of a continuous circular array in the horizontal plane can be analysed in terms of spatial harmonics[r] ...
230
Directional versus Omni Directional Antennas for UWB Imaging
... be directional and small in size. This paper presents a modified directional patch antenna design and fabrication which was used in real breast cancer detection experiments using breast ...
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Sensor based human activity mining using Dirichlet process mixtures of directional statistical models
... terises sensor data into patterns that can be mapped to different activities without the need of annotated training ...representative sensor events for ...discovered sensor sequential patterns to ...
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Medium Access Control Protocol for Wireless Sensor Networks in Harsh Environments with Directional Antennas
... of directional antennas, due to the possibility of spatial ...with directional antenna using an adaptive antenna array on all sensor ...the sensor nodes to perform carrier sensing and does not ...
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Density based Traffic Control System Embedded with Patient Weightage Method
... athighlypopulatedlaneisalsoconsidered.Butitsmajordrawba ckisthatifthedestinedpathoftheambulanceishighlycrowded, again it will lead to delay initsservice.So, it did not fulfill its criteria for which emergency service is ...
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A MEMS non-planar ultrasonic microarray.
... Curved arrays have been well accepted into the medical diagnostic field. Approximately half of all diagnostic ultrasound heads are curvilinear [14, 15]. A commercially produced curvilinear MEMS-based ultrasonic array is ...
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Prediction of parameters to avoid vehicle roll over using neural networks
... Later systems make use of additional information available from a yaw velocity sensor, steering wheel angle and velocity as well as other pertinent parameters.[9] Maximum directional con[r] ...
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Improved Directional Perturbation Algorithm for Collaborative Beamforming
... on directional perturbation is proposed ...In directional perturbation algorithm, the directional search is applied by a direction factor on random ...
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Design and Control of Robotic Systems for Lower Limb Stroke Rehabilitation
... each sensor [69, 70, 71, 72]. More specifically, the maximum sensor error multiplied by the condition number (or the reciprocal of the condition number if less than 1) gives a bound of system error that can ...
114
Novel Wideband Multilayer Butler Matrix Using CB-CPW Technology
... To avoid crossovers in the Butler matrix circuit, a slot-coupled directional coupler is proposed (Fig. 2). It ensures coupling between two CPW lines through a rectangular slot etched on the common ground plane. ...
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Design of Multilayer and Multiline Microstrip Directional Coupler with Closed Form Relations
... microstrip directional couplers with closed form relations are ...microstrip directional couplers have been verified by ...microstrip directional couplers for several RF and microwave applications ...
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Monitoring the Delay and Directivity of Antennas in Gigabit WPAN (802.15.3c)
... the directional RTS transmission always outperformed the omni-directional RTS ...of directional antennas with omni-directional transmission of RTS and CTS, but also studied several other ...
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