Wireless-sensor network distribution type cluster-dividing method based on self-adoptive retreating strategy

Abstract

Based on surplus energy of battery, each node sets up timer in selfadaption. When definite time is reached, node becomes 'head of cluster' automatically and broadcasts message, and adjacent nodes adds to the cluster selectively, becoming 'general node'. When time of forming maximal cluster is reached, all nodes of not choosing own role become 'head of cluster' automatically. Thus, entire network is divided into 'head of cluster' and 'general node' so as to form hierarchical management system. Using surplus energy of battery at node, the invention balances load of system. Through correlation parameters of adjusting algorithm, the method guarantees even distributed head of cluster generated. Simulation result shows that number of forced communication between node and base station is reduced; service life of network is prolonged, and efficiency of energy consumption is raised.

Description

technical field

[0001] The invention relates to a wireless sensor network distributed clustering method based on an adaptive back-off strategy, and is especially suitable for self-organization, hierarchical routing management and network topology construction of the wireless sensor network. Background technique

[0002] With the rapid development and maturity of communication technology, embedded computing technology and sensor technology, miniature sensors with perception, computing and communication capabilities begin to appear around the world. Sensor networks composed of these tiny sensors have attracted great attention. This kind of sensor network integrates sensor technology, embedded computing technology, distributed information processing technology and communication technology. Process, obtain detailed and accurate information, and transmit it to users who need it. The sensor network can enable people to obtain a large amount of detailed and reliable information a...

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