AWSAN: A Realtime Wireless Sensor Array Platform

Author(s):  
Kai Yu ◽  
Ming Yin ◽  
Tianxu Du ◽  
Liantao Wu ◽  
Zhi Wang
2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Ming Yin ◽  
Kai Yu ◽  
Zhi Wang

For low-power wireless systems, transmission data volume is a key property, which influences the energy cost and time delay of transmission. In this paper, we introduce compressive sensing to propose a compressed sampling and collaborative reconstruction framework, which enables real-time direction of arrival estimation for wireless sensor array network. In sampling part, random compressed sampling and 1-bit sampling are utilized to reduce sample data volume while making little extra requirement for hardware. In reconstruction part, collaborative reconstruction method is proposed by exploiting similar sparsity structure of acoustic signal from nodes in the same array. Simulation results show that proposed framework can reach similar performances as conventional DoA methods while requiring less than 15% of transmission bandwidth. Also the proposed framework is compared with some data compression algorithms. While simulation results show framework’s superior performance, field experiment data from a prototype system is presented to validate the results.


Author(s):  
Xiaohua Yi ◽  
Chia-Hung Fang ◽  
James Cooper ◽  
Chunhee Cho ◽  
Rushi Vyas ◽  
...  

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1367
Author(s):  
Jie Shen ◽  
Ming Yin ◽  
Ji-An Luo ◽  
Zhi-Bo Wang ◽  
Zhi Wang ◽  
...  

Time synchronization is an important middleware function that supports the Quality of Service (QoS) of systems in wireless sensor array networks. Instead of providing high synchronization accuracy for all application scenarios, we argue that synchronization protocols should be application specific. In this paper, we exploit the synchronization requirements of target-tracking systems in wireless sensor array networks and propose an energy-efficient Sensor Array Synchronization Protocol (SASP), which provides the required synchronization accuracy to guarantee the QoS. Specifically, when no target appears, to guarantee system lifetime, coarse synchronization is achieved with little overhead by piggybacking time information onto periodical network maintenance packets. Once targets appear, SASP achieves high inter-array and relatively higher intra-array synchronization accuracy rather than the traditional network-wide high accuracy on average. In this way, it guarantees reliable communication and accurate data fusion, while reducing energy consumption. Theoretical analysis and extensive evaluations show the effectiveness of the proposed protocol.


Sensors ◽  
2016 ◽  
Vol 16 (5) ◽  
pp. 686 ◽  
Author(s):  
Kai Yu ◽  
Ming Yin ◽  
Ji-An Luo ◽  
Yingguan Wang ◽  
Ming Bao ◽  
...  

Author(s):  
Onur Cakmak ◽  
Necmettin Kilinc ◽  
Erhan Ermek ◽  
Aref Mostafazadeh ◽  
Caglar Elbuken ◽  
...  

2013 ◽  
Author(s):  
Alberto Rodríguez-Pérez ◽  
Jesús Ruiz-Amaya ◽  
Jens Masuch ◽  
José Antonio Rodríguez-Rodríguez ◽  
Manuel Delgado-Restituto ◽  
...  

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