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Cluster-based dynamic address distribution method

A dynamic address allocation and address technology, applied in advanced technology, network data management, electrical components, etc., to balance remaining energy, improve dynamic flexibility, and improve dynamic performance.

Inactive Publication Date: 2012-08-22
XIAN UNIV OF TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

It can only be performed in the cluster when new nodes are added or dead nodes are removed, which improves the dynamic flexibility of the network, solves the uneven energy consumption of nodes caused by different communication frequencies during the communication process, balances the energy of network nodes, and improves the overall life of the network

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Embodiment Construction

[0040] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] The present invention provides a cluster-based dynamic address allocation method, which is implemented according to the following steps:

[0042] Step 1: Initialization

[0043] ①Clustering: take R′ as the side length, divide the sensor network with side length a into several square cells, and the nodes in each cell are a cluster;

[0044] Among them, R'=0.7R, R is the communication radius of the node;

[0045] ②Each node i according to the physical location information (x′ i ,y′ i ) to get cluster address A i :

[0046]

[0047] Among them, x' i ,y′ i are the abscissa and ordinate of node i respectively, mod is the remainder operation, For the rounding down operation, dec2bin is converted from decimal to binary, A i is the cluster address of node i;

[0048] ③In each cluster, the central node assigns the intra-cluster ad...

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Abstract

The invention discloses a cluster-based dynamic address distribution method for a wireless sensor network. An MAC (message authentication code) address of a sensor node comprises a cluster address and intra-cluster addresses. The cluster-based dynamic address distribution method for the wireless sensor network comprises the following steps: firstly forming a cluster address multiplexing region by combining clusters so as to obtain a cluster address; then distributing intra-cluster addresses of different lengths to each node in the cluster; successively updating the addresses on the basis of utility functions; and comprehensively considering current and historical energy-consumption situations of each node to determine the updating time of the intra-cluster node addresses. According to the cluster-based dynamic address distribution method disclosed by the invention, the average address length of the nodes can be reduced, address impact is avoided, energy consumption caused by transmitting the node addresses is effectively lowered, the service life of the network is prolonged, and the cluster-based dynamic address distribution method for a wireless sensor network has a higher practical value.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor network address allocation, and relates to a cluster-based dynamic address allocation method. Background technique [0002] A wireless sensor network is a wireless network composed of a large number of sensors composed of sensitive elements in a self-organizing and multi-hop manner. It has broad application prospects in various security situations such as military applications and environmental monitoring. In wireless sensor networks, node energy is usually non-renewable, so energy becomes a key factor affecting network life. Studies have shown that compared with processing and sensing processes, the communication process consumes most of the energy of nodes, and the MAC address often occupies a considerable proportion in the communication overhead of wireless sensor networks. Therefore, reducing the length of the MAC address and reducing the energy consumption of node communication are ...

Claims

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Application Information

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IPC IPC(8): H04W8/26
CPCY02D30/70
Inventor 惠鏸李琦王静
Owner XIAN UNIV OF TECH
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