Method for achieving automatic configuration of IPv6 addresses for wireless sensor network

Abstract

The invention provides a method for achieving the automatic configuration of IPv6 addresses for a wireless sensor network. In the method, the wireless sensor network is provided with four types of nodes including isolated sensor nodes, IPv6 access nodes, cluster head nodes and intra-cluster nodes, wherein one of the IPv6 access nodes and a plurality of the cluster head nodes form a dendritic structure. The wireless sensor network consists of a plurality of clusters, and each cluster comprises one cluster head node and a plurality of intra-cluster nodes. The IPv6 access nodes / cluster head nodes adopt a state-full address configuration scheme for recording address assignment to allocate the IPv6 addresses to the other cluster head nodes; the cluster head nodes adopt the state-full address configuration scheme for recording the address assignment and a state-less address configuration scheme for random assignment to allocate the IPv6 addresses to the intra-cluster nodes in the clusters to which the cluster head nodes belong; and when the cluster head nodes adopt the address configuration scheme for the random assignment to allocate the IPv6 addresses to the intra-cluster nodes in the clusters to which the cluster head nodes belong, repeat addresses of the allocated IPv6 addresses are only detected in the clusters.

Description

technical field [0001] The invention relates to a method for realizing automatic address configuration, in particular to a method for realizing automatic configuration of wireless sensor network IPv6 addresses. Background technique [0002] With the continuous maturity and development of the next-generation network (IPv6 network), the realization of all-IP communication interconnection between the wireless sensor network and the next-generation network has become an inevitable trend in future development. One is the automatic configuration of the IPv6 address of the sensor network. [0003] IPv6 address automatic configuration is an important technical feature of IPv6. It can configure a unique IPv6 address for each interface without human intervention. This feature is very consistent with the design goal of WSN self-organization and self-configuration. But at the same time, there are still some problems in the implementation of the existing IPv6 address automatic configura...

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Problems solved by technology

But at the same time, there are still some problems in the implementation of the existing IPv6 address automatic configuration method in WSN with limited resources. For example, the existing stateful address configuration scheme uses the server / client communication method to allocate IPv6 addresses, that is, the node sends the DHCP server A request to apply for an address is made, and then the DHCP server uniformly assigns IPv6 addresses to the nodes in the network. Obviously, this address configuration scheme brings a lot of control packet overhead and consumes a lot of storage resources; in the existing neighbor-based In the stateless address configuration scheme of the discovery protocol, each allocated IPv6 address needs to perform duplicate address detection in the entire WSN to ensure its uniqueness, which also leads to a large amount of control packet overhead and consumes a large amount of network resources

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