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Network clustering method of wireless sensor based on fixed cluster heads

A wireless sensor and sensor node technology, applied in network planning, network topology, wireless communication, etc., can solve problems such as long death time span, and achieve the effects of shortened time span, high energy efficiency, and simple method design

Inactive Publication Date: 2014-06-04
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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Problems solved by technology

This method solves the energy consumption problem caused by the dynamic change of the number of network cluster heads over time and the maintenance of dynamic clusters by using nodes with large energy to act as cluster heads and static clusters; when the remaining energy of nodes with large energy consumption reaches a certain When the threshold is reached, the problem of long time span from the death of the first node in the network to the death of the last node in the network is solved by establishing a data forwarding path in the cluster

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  • Network clustering method of wireless sensor based on fixed cluster heads
  • Network clustering method of wireless sensor based on fixed cluster heads
  • Network clustering method of wireless sensor based on fixed cluster heads

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[0029] figure 1 It is a flow chart of the wireless sensor network clustering method based on fixed cluster heads in the present invention. Firstly, the network is laid out. This method is suitable for a planar distributed network. The non-cluster head nodes are distributed randomly. The area S of the monitoring area is known. D , the number of sensor nodes N, the number of non-cluster head sensor nodes N-M, the number of cluster head sensor nodes M, each node has its own ID.

[0030] Step 1: Network Deployment

[0031] The position of the cluster head is more important in the static wireless sensor network with fixed cluster heads. The fixed cluster head carries relatively large energy and is responsible for the collection, fusion and forwarding of data in the cluster. The purpose of distributing the cluster heads separately is to ensure that the position of the cluster heads is relatively reasonable, and to avoid the cluster heads being too close together, thereby reducing...

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Abstract

The invention discloses a network clustering method of a wireless sensor based on fixed cluster heads, suitable to a network topological structure of a hierarchical wireless sensor. In the method, nodes with relatively larger energy are used as fixed cluster heads to form a static cluster, and a method for establishing an intra-cluster data forwarding path is provided for solving the problem of long span from a first node death time to a last node death time. Under the condition of the same network energy consumption, in compression with an LEACH algorithm, the method can greatly improve the utilization efficiency of network energy and effectively reduce the mean energy consumption of the network in every round without adding any hardware equipment, and thus the method has popularization and application values.

Description

technical field [0001] The invention belongs to the field of wireless sensor network topology control, and specifically relates to a wireless sensor network clustering method based on a fixed cluster head to solve the problem of the survival life of a resource-limited wireless sensor network. The method is applicable to a layered wireless sensor network. Background technique [0002] In the architecture of wireless sensor network, the research of network topology control technology is of great significance to wireless sensor network. The purpose of network topology control research is to eliminate unnecessary wireless communication links between nodes and generate an efficient data transmission network topology through power control and backbone node selection. Clustering topology control has the advantages of low network energy consumption, fast topology formation, and less neighbor information required. In cluster topology control, the network is divided into clusters. T...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/42H04W16/18H04W40/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 衣晓邓露何友刘瑜吴斌孙荣凯
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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