Research On Multiple WSNs Interconnection Based On Perception Layer Of The Internet Of Things

Internet of things is a kind of ubiquitous network built on the Internet, whichmakes it to be a unified whole by combining to the existing network. Wireless sensornetwork is the most important component of Internet of things perception layer.Wireless sensor network is a considerable difference with the past wired networktopology, which brings a lot of changes.Wireless communication and self-organizingnetwork are features of it. Moreover, wireless sensor network node resources areextremely limited, often deployed in harsh environments. The structural robustnessrequirements of wireless sensor network topology and routing require not only thenode has the ability to fault-tolerant, but also should be able to resist attack andintrusion tolerance capabilities, so that when the sensor network is facing attacksnormal operation, it is able to ensure network services, such as real-time monitoring,data transmission and other functions.This article summarizes the development status and problems of the Internet ofThings and wireless sensor networks, as well as the focus of future research, andmake some improvement on the basis of existing research intrusion tolerant topologyrouting in wireless sensor networks. The main contents include the following twoparts:1)The article improves the original wireless sensor topology SORCA protocoland put forward a kind of energy saving capacity of network topology method togenerate SORCA–W.Firstly, according to the node location network is divided into hexagonal cellsthat make up the network topology; structured topology and redundancy node storedenergy can effectively extend the network lifetime; followed by a one-way hash keychain and symmetric key authentication technology control the safety of the new node,multi-network interconnection identity summary judgment by different networknodes.2)Aiming at the new requirements of energy saving and safety-aware for the layer wireless sensor networks of the Internet of things, it improves the originalwireless sensor routing ESRP protocol and put forward a kind of a wireless sensornetworks based on Internet of Things perception layer ESRP-W. The Agreement byevidence theory to modify the original source node routing hop count, which is notgreater than the number of hops taken in accordance with the trust for each node,thereby enhancing the security of the network, balancing each node load, reducingcongestion.