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Clustering routing method based on wireless sensor network node middleware

A wireless sensor network and sensor node technology, applied in wireless communication, electrical components, network topology, etc., can solve the problems of not having advantages, reducing the stability of wireless sensor networks, etc., and achieve good versatility and portability, The effect of reducing energy consumption and reducing transmission delay

Active Publication Date: 2013-06-26
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

Although the method provided avoids the energy consumption of each round of cluster establishment, it has no advantages in the case of node movement in the network, accidental destruction of the cluster head, etc., and reduces the stability of the wireless sensor network.

Method used

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  • Clustering routing method based on wireless sensor network node middleware
  • Clustering routing method based on wireless sensor network node middleware
  • Clustering routing method based on wireless sensor network node middleware

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Embodiment Construction

[0030] In the present invention, the improved LEACH routing protocol is effectively placed in the network protocol stack of the sensor network middleware, and the service primitive is used to request the physical link resource through the Request primitive for the downward data link layer, and According to the Response information returned by the data link layer, a more appropriate routing protocol strategy is determined; for the upward transport layer, presentation layer, and application layer, by receiving the Request request from the upper layer, configure responses for different requirements at different times routing and return data. Such a system based on the middleware structure has better versatility and portability.

[0031] The improved LEACH routing protocol is improved in two stages of cluster head election and adaptive transmission.

[0032] 1) Cluster head election strategy

[0033] The cluster head election strategy includes full network cluster head election,...

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Abstract

The invention relates to a clustering routing method based on a wireless sensor network node middleware. The clustering routing method is characterized in that an improved LEACH (low energy adaptive clustering hierarchy) routing protocol based on energy saving and relay decreasing is proposed on the foundation of existing LEACH protocol to effectively reduce energy consumption during LEACH cluster forming procedure; dynamic adaptive power control is adopted for controlling power of data transmitting phase; after nodes in clusters are added into corresponding clusters, respective channels are switched to the channels assigned by cluster heads; back-off and latency time of adjacent nodes are reduced to an extreme. The improved LEACH routing protocol is allocated in a network protocol stack of the sensor network middleware, adopts a service primitive manner, acquires physical link resource through 'Request' primitive from the data link layer below, and determines more proper routing protocol strategy according to returned 'Response' messages from the data link layer. By the aid of the clustering routing method, two phases of cluster head selection and adaptive transmission are respectively improved.

Description

technical field [0001] The invention relates to a cluster routing method based on wireless sensor network node middleware, belonging to the field of wireless sensor networks. Background technique [0002] A wireless sensor network is a multi-hop wireless network composed of a large number of tiny, low-cost, and low-power sensor nodes deployed in the detection area. Due to the limited energy, processing power and storage capacity of sensor nodes, most routing protocols in traditional MANET (Mobile Ad Hoc Networks) networks are not suitable for application in wireless sensor network environments. Therefore, in the research and design of sensor networks, the implementation of routing protocols and the integration of factors such as network delay, network capacity, and energy constraints are the core issues of widespread concern. [0003] Routing protocols currently used in wireless sensor networks mainly include flat routing protocols and hierarchical routing protocols. Among...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W84/18
CPCY02D30/70
Inventor 才正国赵康尚琳
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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