8ITU. The Internet of things[R]. Geneva: International Telecommunication Union (ITU), 2005.
9Atzori L, Iera A, Morabito G. The lnternet of Things: A survey[J]. Computer Networks, 2010, 54:2787-2805.
10Group IN--GR. Requirements for support of USN applications and services in NGN environment[R]. Geneva: International Telecommunication Union (ITU), 2007.
