3Akyildiz I F,Su W,Sankarasubramaniam Y,et al.Wireless sensor networks:a survey[J].Computer Network,2002,38:93-422.
4Callaway E H.Wireless sensor networks:architectures and protocols[M].Boca Raton,Florida:CRC Press,2004:1-40.
5Priyantha N B,Balakrishnam H,Demaine E,et al.Anchor-free distributed localization in sensor networks,Technical Report MIT-LCS-TR-892[R].Cambridge:MIT Lab for Computer Science,2003.
6Niculescu D,Nath B.DV based positioning in ad hoc networks[J].Journal of Telecommunication Systems,2003,22(1/4):267-280.
7Niculescu D S.Forwarding and positioning problems in ad hoc networks[D].Camden:The State University of New Jersey,2004:29-33.
8Girod L,Bychovskiy V,Elson J,et al.Locating tiny sensors in time and space:a case study[C]∥Werner B.Proc of the 2002 IEEE Int Conf on Computer Design:VLSI in Computers and Processors.Freiburg:IEEE Computer Society,2002:214-219.
9Bahl P,Padmanabhan V N.RADAR:an in-building RF-based user location and tracking system[C]∥Proc of the IEEE INFOCOM 2000.Tel Aviv,2000:775-784.
10Hightower J,Boriello G,Want R.SpotON:an indoor 3D location sensing technology based on RF signal strength,Technical Report UW CSE 2000-02-02[R].Seattle:Department of Computer Science and Engineering,University of Washington,2000.