نتایج جستجو برای: time sensing

تعداد نتایج: 1993893  

Journal: :EURASIP J. Wireless Comm. and Networking 2015
Jingxian Wu Jing Yang

In this paper, we seek answer to the question: can a wireless sensing system with energy harvesting power supplies perform as well as the one with conventional power supplies? Conventional sensing systems with deterministic energy sources usually employ uniform sampling. However, due to the stochastic nature of the energy harvested from the ambient environment, uniform sampling is usually infea...

Journal: Desert 2010
A Yazdan Panah A. Rafiei Emam H.R. Matinfar K. Khodaei R. Hadji Bagheri S.K. Alavipanah

In recent years, acquiring information of remote sensing data, especially satellite data has excessively increased and several methods are presented in order to improve the quality of remote sensing studies in earth sciences. It is possible to manage many projects and provide different types of thematic maps in a short period of time, and a low cost by utilizing satellite data and GIS method. R...

2015
S. Kanimozhi N. P. Gopalan

In a cognitive radio network, the spectrum sensing must be done quickly and accurately to avoid primary interference and to achieve high throughput. Sensing a channel for a long reduces the throughput and increases the energy wastage. A probability density function (pdf) based adaptive sensing method is proposed in which either a pdf based spectrum sensing or a detailed cyclostationary approach...

Present paper investigated the strain and damage sensing property on concrete cubes embedded with carbon fibers. Concrete cubes of dimension 150 mm have been casted with different concentration of carbon fibers to study the strain and damage sensing property under cyclic loading that can be further used for health monitoring as non-destructive testing (NDT) approach. All the specimens were test...

2013
Niwat Thepvilojanapong Tomoya Tsujimori Hao Wang Yoshikatsu Ohta Yunlong Zhao Yoshito Tobe

Nowadays, the number of smartphone users is growing rapidly. Recent smartphones equipped with several sensors are convenient apps for collecting information in participatory sensing environment. However, contributing sensing data requires time and monetary cost, which hinder many people from participation. To realize active and efficient sensing activities, incentive mechanism is indispensable....

2017
Feilong Li Zhiqiang Li Guangxia Li Feihong Dong Wei Zhang

The usable satellite spectrum is becoming scarce due to static spectrum allocation policies. Cognitive radio approaches have already demonstrated their potential towards spectral efficiency for providing more spectrum access opportunities to secondary user (SU) with sufficient protection to licensed primary user (PU). Hence, recent scientific literature has been focused on the tradeoff between ...

2009
Namal A. Senanayake

This paper presents a real time force sensing instrument that is designed for human gait analysis purposes. This instrument mainly consists of three main elements: the force sensing mat, signal conditioning and switching circuit and data acquisition device. In order to control and to process the incoming signals from the force sensing mat, Force-Logger and Force-Reloader program are developed u...

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