Results 161 to 170 of about 637 (190)
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Efficient algorithms for sensor detachment in WMSNs
International Journal of Ad Hoc and Ubiquitous Computing, 2014Target coverage is an important issue in wireless sensor networks (WSNs). This work copes with the target coverage problem which detaches a set of mobile sensors to targets efficiently. Given a set of disconnected targets with different quality of monitoring (QoM) and a set of mobile sensors which are distributed randomly in the networks, this paper ...
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Secure Multipath Routing for WMSN
2012In recent years, the requirements on the high quality environment monitoring by using the sensor nodes which can handle the multimedia data in WSN have been increased. However, because the volume of multimedia data is tremendous, the limited bandwidth of a wireless channel may incur the bottleneck of a system.
Sangkyu Lee +3 more
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Improvements in Wireless Communication and Support for WMSN in IEEE 1451
2014 Brazilian Symposium on Computing Systems Engineering, 2014The IEEE 1451 smart transducer interface standard aims at establishing a common interface to promote interoperability among the myriad of transducers currently in the market. Nonetheless, the acceptance of the standard in the realm of Wireless Sensor Networks (WSN) seems to be constrained by apparently incompatible operational semantics: while ordinary
Leonardo Maccari Rufino +3 more
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Towards WMSN performance using different packet size
2016 IEEE SENSORS, 2016The task of designing WMSN real scenarios in order to evaluate the network performance is not trivial. This work sheds some light on this challenge by studying the impact of the load size when using ZigBee protocol in WMSN that transmits images. The main feature is to use real nodes for reading and dividing camera data into packages for transmission ...
Cesar A. da Silva +3 more
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An Adaptive Sampling Target Tracking Method of WMSNs
2010A novel energy efficient target tracking approach is proposed for wireless multimedia sensor networks: ARMA and piecewise Cubic Spline interpolation based Adaptive Sampling model (ACSAS). The least square based acoustic signal energy ratio localization model is presented. With unequal interval historical target positions interpolated by piecewise cubic
Shikun Tian, Xinyu Jin, Yu Zhang
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Inconsistent Selection of Optimal Frame Length in WMSN
2018In traditional wire networks and wireless networks (e.g. WLAN, Cellular mobile network), optimal frame length is calculated according to the maximum data throughput, and adopted by every nodes in the network. But it is not suitable for Wireless Multimedia Sensor Network (WMSN), which mostly concerns effective utilization of limited energy instead of ...
Yanli Wang +3 more
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Research on Application of WMSNs in Ubiquitous Learning Environment
Advanced Materials Research, 2013WMSNs is one of the most cutting-edge technologies of the field of informatics, and compared to other sensor technology has broad prospects for development. WMSNs has very high service quality, larger multimedia data transmission amount, multimedia data flow model, a wide variety of application services and other characteristics.
Jin Hua Chen, Jing Song, Ying Li
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An energy balance mechanism for monitoring in partial rechargeable WMSNs
2016 International Conference on Computing, Networking and Communications (ICNC), 2016The mobile wireless sensor networks have had much more popular applications in recent years. Especially, wireless rechargeable sensor networks emerge some technological breakthroughs. However, exploiting the rechargeable ability to improve the monitoring lifetime is a great challenge when the rechargeable area is in the partial of environment.
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Image Transmission in WMSN Based on Residue Number System
International Journal of ComputingThe paper considers the speedy images processing in Wireless Multimedia Sensor Networks using the Residue Number System (RNS) and the method of arithmetic coding. The proposed method has a two-stage frame: firstly, the RNS transformation is run to divide the data and obtain residues, and secondly, the parallel compression of the resulting residues is ...
Anatoliy Sachenko +3 more
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An energy-efficient and QoS-based MAC layer protocol for WMSN
Proceedings of the 2nd international conference on Ubiquitous information management and communication, 2008Delivering multimedia content with precise quality of service over the energy-constrained sensor networks is enabling a new field popularly known as Wireless Multimedia Sensor Networks (WMSNs). The major goal of these Wireless Multimedia Sensor Networks is to deliver multimedia contents over wireless sensor networks with certain level of QoS guarantee ...
Sangeon Park +3 more
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