本文關(guān)鍵詞： Channel State Information(CSI) sensorless sensing WiFi indoor localization device-free human detection activity recognition wireless networks ubiquitous computing　出處：《Tsinghua Science and Technology》2015年01期 　論文類型：期刊論文

【摘要】：Can WiFi signals be used for sensing purpose? The growing PHY layer capabilities of WiFi has made it possible to reuse WiFi signals for both communication and sensing. Sensing via WiFi would enable remote sensing without wearable sensors, simultaneous perception and data transmission without extra communication infrastructure, and contactless sensing in privacy-preserving mode. Due to the popularity of WiFi devices and the ubiquitous deployment of WiFi networks, WiFi-based sensing networks, if fully connected, would potentially rank as one of the world's largest wireless sensor networks. Yet the concept of wireless and sensorless sensing is not the simple combination of WiFi and radar. It seeks breakthroughs from dedicated radar systems, and aims to balance between low cost and high accuracy, to meet the rising demand for pervasive environment perception in everyday life. Despite increasing research interest, wireless sensing is still in its infancy. Through introductions on basic principles and working prototypes, we review the feasibilities and limitations of wireless, sensorless, and contactless sensing via WiFi. We envision this article as a brief primer on wireless sensing for interested readers to explore this open and largely unexplored field and create next-generation wireless and mobile computing applications.
[Abstract]:Can WiFi signals be used for sensing purpose? The growing PHY layer capabilities of WiFi has made it possible to reuse WiFi signals for both communication and sensing. Sensing via WiFi would enable remote sensing without wearable sensors, simultaneous perception and data transmission without extra communication infrastructure, and contactless sensing in privacy-preserving mode. Due to the popularity of WiFi devices and the ubiquitous deployment of WiFi networks, WiFi-based sensing networks, if fully connected, would potentially rank as one of the world's largest wireless sensor networks. Yet the concept of wireless and sensorless sensing is not the simple combination of WiFi and radar. It seeks breakthroughs from dedicated radar systems, and aims to balance between low cost and high accuracy, to meet the rising demand for pervasive environment perception in everyday life. Despite increasing research interest, wireless sensing is still in its infancy. Through introductions on basic principles and working prototypes, we review the feasibilities and limitations of wireless, sensorless, and contactless sensing via WiFi. We envision this article as a brief primer on wireless sensing for interested readers to explore this open and largely unexplored field and create next-generation wireless and mobile computing applications.
【作者單位】： School
【分類號(hào)】：TN92;TP212
【正文快照】： wireless signals propagate,which includes both1 Introductionambient objects(e.g.,walls and furniture)and humans(e.g.,their locations and postures).As shown in Fig.1,Technological advances have extended the role ofsensorless sensing with Wi Fi infers the

【相似文獻(xiàn)】

相關(guān)期刊論文 前5條

1 ;Research on perception of juncturebetween syllables in Chinese[J];Chinese Journal of Acoustics;1998年02期

2 ;Spectral integration and perception of Chinese back vowel /γ/[J];Science China(Information Sciences);2010年11期

3 ;Stress perception of Chinese disyllabic words in utterance[J];Chinese Journal of Acoustics;2003年01期

4 張小寧,劉純亮;FLICKER INDEX METHOD FOR EVALUATING FLICKER IN COLOR PDPs[J];Academic Journal of Xi'an Jiaotong University;2004年02期

5 ;Assessment methods of speech synthesis systems for Chinese[J];Chinese Journal of Acoustics;1997年02期

，

本文編號(hào)：1450512