Distributed self-adaptive clustering method suitable for self-organizing network

Abstract

The invention discloses a distributed self-adaptive clustering method suitable for a self-organizing network, and aims to provide a distributed self-adaptive clustering method capable of reducing thenetwork control overhead and improving the network spectrum utilization rate and the network energy efficiency. The invention is realized through the following technical scheme: the method comprises the following steps: in a self-organizing network, each network node constructing an environmental perception module, a self-learning module and a self-decision-making function module which periodically carry out control information interaction with neighbor nodes according to a self-organizing network protocol; each network node receiving the clustering control information of the neighbor nodes through the wireless receiving unit by utilizing the capability of the wireless transmission module to interact the control information with the neighbor nodes in the control period of the node, and reporting the clustering control information of the neighbor nodes obtained by the wireless receiving unit to the environment sensing function module; and circularly executing a cluster head selection process, a cluster head replacement process, a cluster head switching process, a clustering fission process and a clustering combination process, and optimizing cluster head selection in real time.

Description

technical field [0001] The invention relates to a distributed self-adaptive clustering method suitable for self-organizing networks. Background technique [0002] Self-organizing network (AdHoc) is a centerless multi-hop network formed spontaneously by several mobile nodes through a distributed network protocol. Self-organizing networks can efficiently deal with network topology changes, transmission link failures and other issues, and have strong flexibility and invulnerability. As a distributed network, the mobile ad hoc network is an autonomous, multi-hop network. The entire network has no fixed infrastructure, and it can Provides intercommunication between endpoints. Due to the limited transmission power and wireless coverage of the terminal, if two terminals with a long distance want to communicate, they must rely on other intermediate nodes to forward packets. In this way, a wireless multi-hop network is formed between the nodes. It is worth noting that, unlike mult...

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Problems solved by technology

However, the clustering structure may affect the stability and connectivity of network links, which may easily cause network data flow congestion

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