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Energy consumption balancing method of isomerism wireless sensor network unequal clustering

A wireless sensor and non-uniform clustering technology, applied in wireless communication, power management, electrical components, etc., can solve the problem of non-uniformity

Inactive Publication Date: 2013-09-04
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, using the base station to select the cluster head is not a completely distributed method

Method used

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  • Energy consumption balancing method of isomerism wireless sensor network unequal clustering
  • Energy consumption balancing method of isomerism wireless sensor network unequal clustering
  • Energy consumption balancing method of isomerism wireless sensor network unequal clustering

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Embodiment approach

[0034] One embodiment of the present invention is as follows:

[0035] Step 1, the distance from the node to the base station

[0036] The base station calculates the optimal hop count according to the network scale, and then broadcasts the base station message SINK_ADV including the hop count message and the candidate cluster head probability p to the whole network. All nodes in the network receive the message from the base station, and calculate the distance d between themselves and the base station according to the RSSI of the received broadcast message to_sink .

[0037] The specific process of determining the optimal number of hops is as follows:

[0038] ①Energy consumption model

[0039] In the process of sending l-bit data and passing the transmission distance d, the energy consumption of the sending end is:

[0040] E tx ( l , d ) = ...

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Abstract

The invention relates to the research of an energy consumption balancing method of isomerism wireless sensor network unequal clustering. The energy consumption balancing method of isomerism wireless sensor network unequal clustering comprises the following steps that candidate cluster heads run for a cluster head according to the distances between the candidate cluster heads and a base station in different radiuses, and a cluster head in the next round is selected by a current cluster head in a cluster, and the cluster head uses an optimal hop count to forward data to the base station according to the distance between the cluster head and the base station. According to the energy consumption balancing method of isomerism wireless sensor network unequal clustering, an isomerism wireless sensor network node energy consumption model is used, the entirely-distributed stable unequal clustering balancing method is proposed, remaining energy of a node and the distances from the node to other nodes in a competitive radius are synthesized in the cluster head selection method, communication cost of the nodes in the cluster is obtained through calculation, the nodes run for the cluster head according to own communication cost to enable the number of the cluster heads to be stable in a stable period, node energy consumption is balanced, and the stable working period of the network is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of wireless communication networks, in particular to a research on an energy balance method for non-uniform clustering of heterogeneous wireless sensor networks. Background technique [0002] A sensor node is usually a tiny embedded system powered by a battery that carries limited energy. The energy consumption rate of nodes in the network is different. If some nodes in the network die prematurely, it will bring about changes in network topology and re-establishment of routes, and may even cause the network to be divided into disconnected parts, causing the entire transmission A sense of paralysis of network communication. Heterogeneous wireless sensor networks are ubiquitous. For example, nodes carry different initial energies. With the different energy consumption rates of network nodes, homogeneous networks will also appear heterogeneous. Therefore, it is particularly important to study the energy balan...

Claims

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Application Information

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IPC IPC(8): H04W52/34
Inventor 江禹生李萍管芳
Owner CHONGQING UNIV
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