1ATZORI L,IERA A,MORABITO G.The Internet of Things:A survey[Z].Computer Networks(2010),doi:10.1016/j.comnet.2010.05.010.
2President's Council of Advisors on Science and Technology.Leadership Under Challenge:Information Technology R&D in a Competitive World,An Assessment of the Federal Networking and Information Technology R&D Program[EB/OL].[2007-07-02].http:∥ostp.gov/pdf/nitrd_review.pdf.
