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An SDN-based UWSNs space-time routing architecture acquisition method

An acquisition method and routing technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as node robustness without considering node routing efficiency

Active Publication Date: 2019-05-31
DALIAN UNIV OF TECH
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Problems solved by technology

However, this routing architecture only considers the robustness of nodes and does not consider the actual routing efficiency of nodes.

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  • An SDN-based UWSNs space-time routing architecture acquisition method
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  • An SDN-based UWSNs space-time routing architecture acquisition method

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Embodiment Construction

[0069] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.

[0070] (1) SDN-based UWSNs network model: such as figure 1 Shown is the UWSNs network model based on SDN of the present invention, that is, using SDN to decouple the data control unit of the UWSNs network from the device forwarding unit, on this basis, abstract network functions, and divide the UWSNs network into three levels:

[0071] (1.1) Data layer: mainly composed of underwater data acquisition sensors, including towed (TS) / non-towed (MS) sensors, which are only responsible for underwater industrial data acquisition and monitoring, and request their data forwarding at the routing layer in real time / Gateway node forwards the data it collects.

[0072] (1.2) Routing layer: including underwater gateway nodes, mainly composed of AUV-based mobile (MR) and towed (TR) routing nodes. The underwater gateway n...

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Abstract

The invention belongs to the technical field of wireless sensor networks, and discloses an SDN-based UWSNs space-time routing architecture acquisition method. The data control plane and the data forwarding plane of the UWSNs are decoupled through the SDN technology, and the UWSNs are divided into a data layer, a routing layer and a control layer. On the basis, a beacon frame is defined to realizenetwork topology perception and data synchronization, and active detection of related network links and control links is realized; secondly, based on the perceived network topology and information, through network global hierarchical positioning calculation guided by an SDN controller, estimating network space-time information; and finally, based on the space-time information of the network, abstracting the space-time characteristics of the network by utilizing the time expansion network, thereby realizing data space-time routing. According to the method, a set of efficient, safe and transparent data routing architecture is provided for the UWSNs by considering the actual complex dynamic space-time change environment of the UWSNs.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to an SDN-based UWSNs spatio-temporal routing architecture acquisition method. Background technique [0002] In recent years, with the rapid development of underwater wireless sensor network (UWSNs) comprehensive technology system and its application research, underwater environment detection and monitoring, underwater data acquisition and routing have become a popular application research. However, due to the complexity of the underwater environment, the network topology and status of UWSNs show temporal and spatial variation characteristics, making it difficult to guarantee the effective routing of target data. In UWSNs, in order to ensure the effective routing of target data, the first prerequisite is to be able to grasp the local or global state of the network in real time, and to make effective judgments on the target nodes that may affect the chara...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/751H04W24/08H04W40/04H04W40/12H04L45/02
Inventor 韩光洁林川杜嘉欣王照辉
Owner DALIAN UNIV OF TECH
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