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Novel node distribution method for maximizing service lives of clustering wireless sensor networks

A wireless sensor and network lifetime technology, applied in network planning, network topology, wireless communication, etc., to achieve the effect of improving energy efficiency, reducing impact, and improving lifetime

Inactive Publication Date: 2013-11-13
任炬
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

(2) Most of the research is aimed at the deployment of flat network nodes [3, 6-9], and there is no research on the deployment of clustered network nodes

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  • Novel node distribution method for maximizing service lives of clustering wireless sensor networks
  • Novel node distribution method for maximizing service lives of clustering wireless sensor networks
  • Novel node distribution method for maximizing service lives of clustering wireless sensor networks

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Embodiment Construction

[0022] See Figure 1-2 This specific implementation is based on a typical sensor network application model, so its research has practical significance. The specific network model and energy consumption model are described as follows.

[0023] Network model: (1) n sensor nodes will be scattered in a circular area according to a certain deployment plan, and sink nodes are located at the center of the area. (2) The clustering algorithm adopted by the network is the EADC algorithm in [17], which uses the ratio of the remaining energy of the node to the energy of the surrounding nodes as the criterion for the election of cluster heads. The members in the cluster use TDMA to send data to the cluster head node, and the CSMA method between clusters. The cluster head node uses the multi-hop greedy routing algorithm to merge the data, and selects the cluster head node closest to the sink within its communication radius as the next hop until Send data to sink. (3) The transmitting power o...

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Abstract

The invention discloses a novel node distribution method for maximizing the service lives of clustering wireless sensor networks and relates to the technical field of wireless sensor networks. The method has the advantages that 1, data volumes born by nodes of different regions and energy consumption laws in clustering networks which are uniformly deployed and meet the coverage required minimum density are obtained theoretically, and a network service life calculation method is given; 2, a non-uniform node distribution (NUND) algorithm is raised, and the network service lives are optimized under the circumstance of certain distribution nodes; 3, the cluster head alternating frequency of regions with increased distribution nodes is increased according to the node density of different regions based on the NUND distribution scheme, and an improved non-uniform node distribution (I-NUND) scheme is raised, accordingly, the network energy consumption is further reduced, and the network service lives are maximized.

Description

Technical field: [0001] The invention relates to the technical field of infinite sensor networks, in particular to a node deployment method for maximizing the lifetime of a novel clustered wireless sensor network. Background technique [0002] As a new type of self-organizing network, sensor network has good application prospects, and has achieved satisfactory practical value in military investigation, environmental monitoring, target tracking and other application fields. Sensor nodes are usually battery-powered, and the cost of network deployment is high, and they cannot be easily replaced or recharged after one deployment, so energy is extremely precious [1, 2]. However, limited by the many-to-one transmission mode of the sensor network, the nodes close to the sink in the sensor network usually die prematurely due to heavy forwarding tasks, forming a so-called "energy hole". After the energy hole is generated, the data at the periphery of the network cannot be transmitted to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 任炬
Owner 任炬
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