Layered-structure-based topology control method for dynamic wireless sensor network

A wireless sensor and layered structure technology, applied in network topology, wireless communication, network planning, etc., can solve the problem of lack of network support for periodic data collection

Inactive Publication Date: 2012-01-25
HANGZHOU HOMEWELL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Other improved algorithms for the LEACH algorithm, such as

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  • Layered-structure-based topology control method for dynamic wireless sensor network
  • Layered-structure-based topology control method for dynamic wireless sensor network
  • Layered-structure-based topology control method for dynamic wireless sensor network

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Embodiment 1

[0039] Embodiment 1: The realization of the topology control of the dynamic wireless sensor network based on the layered structure, including the process of node network access, node registration process and network optimization process, the nodes adopt the same design and all have the function of network routing relay, the process of node network access Include the following steps: figure 1 Shown:

[0040] 1. After the node is initialized, send Hello information to the surrounding nodes;

[0041] 1. After the initialization is completed, start a timer to control the duration of sending the Hello message;

[0042] 2. The Hello message contains node ID, node level (initial level is 1), node status and other information;

[0043] 3. If the expected value of the parent node level contained in the Hello message is greater than the set value, restart the timer and resend the Hello message; if the expected level value contained in the Hello message is 3, if the set value is 2, whi...

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Abstract

The invention relates to the field of topology control and construction of a wireless sensor network and in particular to a layered-structure-based topology control method for a dynamic wireless sensor network. The method comprises a node networking process, a node registration process and a network optimizing process. According the method nodes are enabled to access the network in a self-adaptive manner without changing the whole network topology by dynamic hierarchical regulation and networking algorithm control of the nodes on the condition of maintaining equal network functions of the whole network nodes, and the topology of a local network is minimally changed, thus reducing the additional cost of the network. The novel topology control mechanism provided by the invention integrates the advantages of a plane structure, thus the whole robustness of the network is enhanced, the complexity for network realization is reduced, and the problems existing in the prior art are solved.

Description

technical field [0001] The invention relates to the field of topology control and reconstruction of a wireless sensor network, in particular to a topology control method of a dynamic wireless sensor network based on a layered structure. Background technique [0002] Wireless Sensor Network (WSN) is a cutting-edge research field and industrial hotspot that has attracted much attention at home and abroad, involves multi-disciplinary interdisciplinary, and highly integrated knowledge. It integrates computer technology, sensor technology, network communication technology, distributed information processing technology, etc., and can monitor and collect information about various environments and monitoring objects through various integrated sensors. It is transmitted to the user terminal or data center, so as to realize the connection between the physical world, the computer world, and the human world. Wireless sensor networks have huge application prospects, and have great poten...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W84/18
Inventor 冯一汀张建成方燕宝
Owner HANGZHOU HOMEWELL TECH
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