Method for constructing route capable of prolonging service life of IPv6 wireless sensor network

Abstract

A method for constructing a route capable of prolonging the service life of an IPv6 wireless sensor network includes the steps that an intermediate node receives and analyzes a DIO message to obtain a DODAGID and an ID, the rank and the rest energy level of a sending node and an RSSI is obtained; the DODAGID, the rank and the rest energy level of the intermediate node are calculated; an LQI between the sending node and the intermediate node is figured out according to the RSSI; a father node list is created, and the DODAGID, the LQI and the ID, the rank and the rest energy level of the sending node are preserved; the optimal path is worked out through an objective function by means of measurement information of the rank of a sender, the rest energy levels and the LQI and corresponding constraint conditions, and a first choice father node is determined; the DIO message is established and broadcasted. Route measurement of the ranks, the rest energy levels and the LQI are introduced and organically combined to establish the route, and the service life of the network is greatly prolonged on the premise of guaranteeing that data are interacted quickly and stably.

Description

technical field [0001] The invention relates to the technical field of IPv6 wireless sensor networks, in particular to a route construction method for prolonging the service life of IPv6 wireless sensor networks. Background technique [0002] The wireless sensor network is composed of a large number of miniature sensor nodes deployed in the monitoring area. It is a multi-hop self-organizing network formed by wireless communication. At present, the wireless sensor network has been widely used. Because the address allocation of a large number of sensor nodes will The address crisis of IPv4 occurs, and IPv6 has absolute advantages over IPv4 in terms of automatic address configuration and addressing capabilities, which makes the combination of IPv6 and WSN face unprecedented opportunities, and wireless sensor networks based on IPv6 have achieved unprecedented development. The IETF (Internet Engineering Task Force, Internet Engineering Task Force) working group ROLL (Routing Over...

AI Technical Summary

Problems solved by technology

[0007] However, in the above technical solutions, although the battery theoretical model can accurately calculate the remaining energy of the node, it is not available in the actual sensor node due to its complex calculation and memory requirements; and the existing hardware already has the ability to calculate and display the remaining energy of the node. energy capacity

In addition, the scheme purely uses energy as the routing metric without considering factors such as delay and link stability, which makes the scheme have many problems in practical applications.

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