A Cluster Routing Method for Distributed Wireless Sensor Networks

Abstract

The invention discloses a distributed wireless sensor network clustering routing method, which mainly solves a problem that network energy load is unbalance caused by a hot area problem when a node in a wireless sensor network cluster performs data transmission by utilizing a multi-hopping communication mod. The method is a distributed method, and the node does not depend on perception on a network whole topological structure and only depends on self information and neighbor node information to elect a reasonable cluster head node with combination of fuzzy logic. At a cluster head election stage, the node is subject to performance analysis by utilizing the fuzzy logic. According to the distributed wireless sensor network clustering routing method, node energy, node degree (neighbor node number) and neighbor node energy are taken as evaluation indexes, thereby effectively alleviating the common hot area problem during multi-hopping communication, improving the robustness of a structure network, prolonging life cycle of the network, and improving system data transmission efficiency.

Description

technical field [0001] The invention relates to a wireless sensor network network layer optimization technology, in particular to a distributed wireless sensor network cluster routing method. Background technique [0002] Wireless Sensor Networks (WSNs) is a multi-hop self-organizing network system, which is composed of a large number of sensor nodes, and the nodes are interconnected through wireless communication. Generally speaking, a wireless sensor network is composed of sensor nodes and aggregation nodes, and each sensor node has the functions of data receiving and data forwarding, that is to say, each node can be either a normal node or a routing forwarding function. . The aggregation node is equivalent to the role of the gateway. It is not only responsible for data fusion of the information collected by the sensor nodes under the jurisdiction of the designated area, but also responsible for communicating with external networks (Internet, mobile communication network,...

AI Technical Summary

Problems solved by technology

[0005] In the cluster routing algorithm, since the cluster head node needs to undertake the tasks of data fusion in the cluster and communication with the sink node, its energy consumption is much greater than that of the member nodes in the cluster, but there is often a hot spot problem in multi-hop communication, that is, The closer the node is to the cluster head, the more data receiving and data forwarding tasks it needs to undertake, the greater the extra energy consumption it brings, and the easier it is for the node to die prematurely, which destroys the stability of the communication link It will have a serious impact on the load balancing and overall performance of the entire network