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Three-dimensional wireless optical sensor network routing method based on clustering

A sensor network and wireless optical technology, applied in the field of optical communication, can solve the problems of cluster head death, unbalanced node energy loss, short network survival time, etc., and achieve the effect of prolonging the survival time, balancing the distribution of energy consumption, and reducing transmission consumption.

Active Publication Date: 2020-06-30
XIDIAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to propose a clustering-based three-dimensional wireless optical sensor network routing method to solve the technical problems in the prior art that the network survival time is short and the node energy loss is unbalanced, resulting in the cluster head dying too fast

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  • Three-dimensional wireless optical sensor network routing method based on clustering
  • Three-dimensional wireless optical sensor network routing method based on clustering
  • Three-dimensional wireless optical sensor network routing method based on clustering

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Embodiment Construction

[0031] Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:

[0032] refer to figure 1 , the present invention comprises the following steps:

[0033] Step 1, the nodes in the wireless optical sensor network are initialized.

[0034] Deploy the wireless optical sensor network nodes in a cube monitoring area with a side length a, and the nodes start to initialize, that is, the network determines the ID number of the node, the position of the node, the initial energy E of the node, and the distance d between the node and the base station toB these basic information. The node ID number is assigned by the base station. Once the node is deployed, its position remains unchanged. The initial energy of all nodes is the same. The distance from the node to the base station can be calculated from the node position and the base station position.

[0035] Step 2, each node scans the surrounding nodes by using the APT system...

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Abstract

The invention provides a three-dimensional wireless optical sensor network routing method based on clustering, and mainly solves the problem of too fast cluster head death caused by short network survival time and unbalanced node energy loss in the prior art. According to the implementation scheme, the method comprises the following steps: initializing a wireless optical sensor network node; discovering neighbor nodes through an APT system; calculating the optimal cluster head number of the network, and calculating a cluster head election threshold; comparing a random number generated by the node with a threshold value to elect a cluster head; enabling each cluster head to broadcast a data packet containing own information to a neighbor node to establish a cluster structure; enabling eachcluster head to collect data of cluster member nodes and transmit the data to the base station in a single-hop or multi-hop mode; and after one round, restarting clustering to establish a network route. According to the method, the network energy loss is balanced, the problem that the distance between the node and the base station is limited is solved, the network survival time and survivability are improved, and the method can be used for the three-dimensional wireless optical sensor network with high requirements for energy balance and survival time.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and in particular relates to a routing method for a wireless optical sensor network, which can be used in a three-dimensional wireless optical sensor network with limited node energy and high requirements for network survival time. Background technique [0002] Wireless Optical Communication (OWC) technology is a two-way communication technology that uses laser as a carrier and uses modulation and coding to transmit visible light, infrared light and other lasers through atmospheric channels to achieve point-to-point, point-to-multipoint and multipoint-to-multipoint data interaction. Wireless sensor network (WSN) is a network formed by many sensor nodes to achieve cooperative sensing and communication functions. The wireless optical sensor network (OWSN) combines the advantages of OWC and WSN. It consists of a large number of optical sensor nodes. Optical signals are used to transmit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/32H04W40/10H04W40/22H04W40/20H04W40/24H04W84/18H04L12/715H04B10/11
CPCH04W40/32H04W40/10H04W40/22H04W40/20H04W40/246H04W84/18H04L45/46H04B10/11Y02D30/70
Inventor 张超尚韬高妍钱培恒
Owner XIDIAN UNIV
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