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Mobile sensor network routing method based on region gradient updating

A gradient and regional technology, applied in network topology, data exchange network, transmission system, etc., can solve problems such as large energy consumption, storage space occupation, and short convergence time

Inactive Publication Date: 2008-04-09
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] The routing protocols designed in the literature have relatively short convergence time for route establishment, but have the following defects: network nodes need to frequently exchange time information to establish gradients during the movement process, and the energy cost is relatively large; each node needs to save a The encounter time gradient value table needs to occupy a certain amount of storage space

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  • Mobile sensor network routing method based on region gradient updating
  • Mobile sensor network routing method based on region gradient updating
  • Mobile sensor network routing method based on region gradient updating

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Embodiment Construction

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] The specific implementation is as follows: In order to avoid the conflict between regional gradient information signal and data communication, this protocol uses two separate channels for broadcast and data transmission in the sensor network. The broadcast channel is used by the base station to broadcast area information to the sensor nodes in the network; the data transmission channel is used by the sensor nodes in the network to communicate with each other. This agreement consists of the following three parts:

[0059] (a) Establishment of regional gradients: After the network nodes are deployed, the entire network is in the initial state, and the base station synchronizes time with the nodes of the entire network. Then the base station periodically broadcasts the regional gradient information to the network nodes through the broadc...

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Abstract

The invention discloses a mobile sensor network routing method based on regional gradient updating. The method is helpful for the application and development of wireless sensor network technology in China, and will take important roles in environmental monitoring and forecasting, emergency treatment of natural disaster, scientific expedition and exploration, intelligent family, urban traffic, management of large-scale garage and warehouse, safety monitoring of large-scale industry park and other fields. The invention mainly solves the problems of the protocol in prior art, including large energy expenditure and large storage space. The method comprises a base station constructs regional gradient and performs periodical regional gradient updating, so as to synchronizing the time of the entire network. When a source node transmits data to a merge mode, the source node constructs a link going through the merge node, so as to conduct data transmission. The invention is based on wireless sensor network, increases the service life of wireless sensor network, and saves storage space of a sensor.

Description

technical field [0001] The invention relates to a routing selection between a sensor node and a converging node in a wireless sensor network, and in particular provides a routing method for a mobile sensor network based on area gradient updating. Background technique [0002] The mobile sensor network is a dynamic sensor network, which consists of a large number of dynamic sensor nodes and a small number of static sensor nodes. The dynamic sensor nodes move randomly in the network area, and the adjacent nodes rely on wireless links for communication. The mobile sensor nodes in the network are responsible for collecting information, and use other sensor nodes to forward the information to the sink node. The routing method is used to establish an information transmission path from a source node to a sink node, and select an intermediate node that needs to forward information. All nodes on the transmission path consume a certain amount of energy when forwarding data. How to de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04L45/02H04W84/18
Inventor 周贤伟王建萍杨双仕王丽娜杨裕亮杨扬
Owner UNIV OF SCI & TECH BEIJING
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