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Biao Song   Dr.  University Educator/Researcher 
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Biao Song published an article in April 2015.
Top co-authors
Peiyuan Chen

1 shared publications

School of Automation & Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China.

3
Publications
5
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0
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13
Citations
Publication Record
Distribution of Articles published per year 

Total number of journals
published in
 
3
 
Publications
Article 5 Reads 13 Citations Nonlinear optimization-based device-free localization with outlier link rejection. Wendong Xiao, Biao Song, Xiting Yu, Peiyuan Chen Published: 07 April 2015
Sensors, doi: 10.3390/s150408072
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
Device-free localization (DFL) is an emerging wireless technique for estimating the location of target that does not have any attached electronic device. It has found extensive use in Smart City applications such as healthcare at home and hospitals, location-based services at smart spaces, city emergency response and infrastructure security. In DFL, wireless devices are used as sensors that can sense the target by transmitting and receiving wireless signals collaboratively. Many DFL systems are implemented based on received signal strength (RSS) measurements and the location of the target is estimated by detecting the changes of the RSS measurements of the wireless links. Due to the uncertainty of the wireless channel, certain links may be seriously polluted and result in erroneous detection. In this paper, we propose a novel nonlinear optimization approach with outlier link rejection (NOOLR) for RSS-based DFL. It consists of three key strategies, including: (1) affected link identification by differential RSS detection; (2) outlier link rejection via geometrical positional relationship among links; (3) target location estimation by formulating and solving a nonlinear optimization problem. Experimental results demonstrate that NOOLR is robust to the fluctuation of the wireless signals with superior localization accuracy compared with the existing Radio Tomographic Imaging (RTI) approach.
Article 0 Reads 2 Citations Sequential Geometric Approach for Device-Free Localization with Outlier Link Rejection Wendong Xiao, Biao Song Published: 01 January 2015
Mathematical Problems in Engineering, doi: 10.1155/2015/619894
DOI See at publisher website ABS Show/hide abstract
Device-free localization (DFL) is an emerging technique for estimating the location of the target that does not attach any electronic equipment. Wireless devices are needed to perform as transmitters or receivers. The location of the target is estimated by detecting the changes of the received signal strength (RSS) measurements of the wireless links formed by wireless transmitters and receivers. Due to the uncertainty of the wireless channel, certain links may be polluted seriously, resulting in error detection. In this paper, we propose a novel sequential geometric approach with outlier link rejection (SGOLR) for DFL. It consists of three sequential strategies, including (1) affected link identification by differential RSS detection; (2) outlier link rejection via clustering algorithm by intersection of link (IoL) calculation from the affected links; and (3) density based IoL selection and target location estimation from the remained IoLs. Experimental results show that SGOLR is robust to the fluctuation of the wireless signals with superior localization accuracy compared with the existing Radio Tomographic Imaging (RTI) approach.
PROCEEDINGS-ARTICLE 0 Reads 0 Citations Quality of estimation guaranteed energy efficient sensor selection in wireless sensor networks Biao Song, Wendong Xiao, Zhaohui Zhang Published: 01 June 2014
Proceeding of the 11th World Congress on Intelligent Control and Automation, doi: 10.1109/wcica.2014.7052962
DOI See at publisher website
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