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Clustering-Based Routing Method for 3D Wireless Optical Sensor Networks

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 survival time, balancing energy consumption distribution, and reducing transmission consumption.

Active Publication Date: 2022-04-19
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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  • Clustering-Based Routing Method for 3D Wireless Optical Sensor Networks
  • Clustering-Based Routing Method for 3D Wireless Optical Sensor Networks
  • Clustering-Based Routing Method for 3D Wireless Optical Sensor Networks

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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 proposes a clustering-based three-dimensional wireless optical sensor network routing method, which mainly solves the problems in the prior art that the cluster heads die too quickly due to short network life time and unbalanced node energy loss. The implementation plan is: initialize the nodes of the wireless optical sensor network; discover neighbor nodes through the APT system; calculate the optimal number of cluster heads in the network, and calculate the cluster head election threshold; compare the random number generated by the node with the threshold to elect the cluster head; Each cluster head broadcasts data packets containing its own information to neighboring nodes to establish a cluster structure; each cluster head collects the data of cluster member nodes and transmits them to the base station in the form of single-hop or multi-hop; after a round, restart Clustering establishes network routing. The invention balances network energy loss, solves the problem of limited distance between nodes and base stations, improves network survival time and invulnerability, and can be used in a three-dimensional wireless optical sensor network with higher 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 Patents(China)
IPC IPC(8): H04W40/32H04W40/10H04W40/22H04W40/20H04W40/24H04W84/18H04L45/00H04B10/11
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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