[1] [1] PAEK J. Fast and adaptive mesh access control in Low-Power and Lossy Networks[J]. IEEE Internet of Things Journal, 2015,2(5):435-444.

[2] [2] LIU X,SHENG Z,YIN C,et al. Performance analysis of Routing Protocol for Low power and Lossy Networks(RPL) in large scale networks[J]. IEEE Internet of Things Journal, 2017,4(6):2172-2185.

[4] [4] GHALEB B,AI-DUBAI A,ROMDHA I,et al. Drizzle:adaptive and fair route maintenance algorithm for Low-Power and Lossy Networks in IoT[C]// IEEE International Conference on Communications(ICC). Paris,France:IEEE, 2017:1-6.

[5] [5] RFC 6550. RPL:IPv6 routing protocol for Low-Power and Lossy Networks[S]. 2012.

[6] [6] RFC 6552. THUBERT P. Objective function zero for the routing protocol for low-power and lossy networks[S]. 2012.

[7] [7] RFC 6719. GNAWALI O,LEVIS P. The minimum rank with hysteresis objective function[S]. 2012.

[11] [11] VALLATI C,MINGOZZI E. Trickle-F:fair broadcast suppression to improve energy-efficient route formation with the RPL routing protocol[C]// 2013 Sustainable Internet and ICT for Sustainability(SustainIT). Palermo:IEEE Press, 2013:1-9.

[12] [12] KERMAJANI H,GOMEZ C. On the network convergence process in RPL over IEEE 802.15.4 multihop networks: improvement and trade-offs[J]. Sensors, 2014,14(7):11993-12022.

[13] [13] AHMED A M,PAULUS R. Congestion detection technique for multipath routing and load balancing in WSN[J]. Wireless Networks, 2016,23(8):1-8.

[14] [14] KOVATSCH M,DUQUENNOY S,DUNKELS A. A low-power CoAP for contiki[C]// 2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems. Valencia:IEEE Computer Society, 2011:855-860.

[15] [15] SHELTAMI T R,SHAHRA E Q,SHAKSHUKI E M. Performance comparison of three localization protocols in WSN using Cooja[J]. Journal of Ambient Intelligence and Humanized Computing, 2017,8(3):1-10.