A Novel Node Deployment Method for Lifetime Maximization in Clustered 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 network lifetime, improving energy efficiency, and reducing energy consumption

Inactive Publication Date: 2016-08-10
任炬
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  • Abstract
  • Description
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  • 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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  • A Novel Node Deployment Method for Lifetime Maximization in Clustered Wireless Sensor Networks
  • A Novel Node Deployment Method for Lifetime Maximization in Clustered Wireless Sensor Networks
  • A Novel Node Deployment Method for Lifetime Maximization in Clustered 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 more 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 the sink node is located in the center of the area. (2) The clustering algorithm adopted by the network is the EADC algorithm in literature [17]. This algorithm uses the ratio of the remaining energy of a node to the energy of surrounding nodes as the criterion for cluster head election. Members in the cluster use TDMA to send data to the cluster head node, and CSMA is used between clusters. The cluster head node uses the multi-hop greedy routing algorithm to fuse the data, and selects the cluster head node closest to the sink within its own communication radius as the next hop until Send data to sink. (3) The trans...

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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 wireless sensor networks, in particular to a node deployment method for maximizing service life of a novel clustered wireless sensor network. Background technique [0002] As a new type of self-organizing network, sensor network has a good application prospect, and has achieved satisfactory practical value in military investigation, environmental monitoring, target tracking and other application fields. Sensor nodes are usually powered by batteries, and the cost of network deployment is high. After a deployment, they cannot be easily replaced or recharged, 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 early due to the heavy forwarding task, forming a so-called "energy hole". After the energy hole is generated, the data at the periphery of the network cannot be transmitted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/18H04W52/02H04W84/18
CPCY02D30/70
Inventor 任炬
Owner 任炬
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