Based on mobility support of IPv6 and node discovery mechanism, this paper proposes a method using node discovery mechanism for mobile node auxiliary connection, in which we detect the real-time received signal strength indicator, by computing and analyzing the change of average value to predict variation trend. In addition, we drew up a new generation of Internet protocol implementation scheme in 6LoWPAN, which is the access of the combination of the mobile node and IoT gateway, etc. In the local IoT, things connect with IPv6, which satisfy the demand of mobility, the whole IoT architecture model of IPv6 connection will be implemented. The analysis and evaluation of network performance was completed in Cooja simulator based on Contiki system after the hardware test. Results show that this method is suitable for the stub network of Internet of things in the common dynamic scenes and more efficient and less packet loss probability when compare to the original 6LoWPAN.
Introduce6LoWPAN technology enable wireless sensor network node to be equal and free to access to the Internet. At the same time, the Internet hosts can transparently access node of the Internet of things, it streamlined the part of the function of the IPv6 protocol, retain and simplifies necessary part, while clipping and delete non-essential part [1]. This has very important for achieving full integration of IoT and IPv6-based Internet. Mutual integration of Internet and IoT can form a real IP network, in order to obtain needed information through a terminal at any time and place. This is good prospect in future information society. The use of 6LoWPAN technology will effectively solve the problem of accessing the nodes of IoT perception layer to Internet, to achieve the sensor network peripheral nodes IP-based [2]. The IoT terminals are a large number of sensor nodes and wireless nodes, most of which have mobility. Currently, some research at home and abroad carry out a wide range of improving the mobility of the IoT in the access point switching delay and transmission efficiency of exploration, the terminal node usage scenarios is increasing, the performance is further improved.Due to the limitations of personal area network technology, originally designed for its security is not adequate enough, IoT or low-power network terminal devices and data is highly easier to attack. Mainly reflected in the network using self-organization network and lack of proper authentication mechanisms, the local node in the connections between nodes without any restrictions, and the network is relying on wireless media, messages can be received by any node, which means that malicious users can copy or disguise a
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