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A data routing method in long-distance linear wireless sensor network

A wireless sensor network and data routing technology, which is applied in the field of data routing in long-distance linear wireless sensor networks, can solve the problems of unsimple design of data routing mechanism and node deployment method, increased data transmission time, and oversimplification , to achieve low latency, reduce latency, and prolong service life

Active Publication Date: 2020-09-01
NANJING UNIV
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Problems solved by technology

[0005] The linear wireless sensor network (LWSN) structure is a special case among all network topologies, where long-distance multi-hop communication leads to increased data transmission time
LWSN may be too simple in topology, but the design of data routing mechanism and node deployment method is not simple

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  • A data routing method in long-distance linear wireless sensor network
  • A data routing method in long-distance linear wireless sensor network
  • A data routing method in long-distance linear wireless sensor network

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Embodiment Construction

[0038] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] figure 1 Shows the subchain split phase.

[0040] Suppose the sending range is r 0 The n nodes of are randomly and uniformly distributed in the interval [0, l]. Then the probability that the network consists of at most C sub-chains is:

[0041]

[0042] in,

[0043] According to the connectivity formula (1), it can be calculated between the connectivity P and the sending range r 0 Between these two references, take the minimum value of the number of sub-chains C that meets the requirements, because the larger C is, the larger P is, but if C is too large, it means that the number of nodes in each group becomes smaller , until it becomes 1, that is, hop-by-hop transmission, which loses the meaning of grouping.

[0044] After obtaining C, put the geographically adjacent nodes into the sub-chain, each sub-chain has nodes, th...

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Abstract

The invention discloses a data routing method in a long-distance linear wireless sensor network, which includes a sub-chain division stage, a data summary stage in a sub-chain, and a communication stage between sub-chains. By integrating and optimizing monitoring information, the entire long-distance The status monitoring delay of the linear line ensures the safety and reliability of the network during data transmission. The invention has the characteristics of low energy consumption and low time delay, and can use relatively few nodes to communicate a large amount of data, so that the transmission success rate of the entire network reaches the highest.

Description

technical field [0001] The invention belongs to the technical field of wireless sensing, and in particular relates to a data routing method in a long-distance linear wireless sensing network. Background technique [0002] Advances in wireless communication protocols and embedded designs have enabled low-power, small, multifunctional sensor nodes to be widely used in wireless sensor networks (WSNs), covering many fields from environmental monitoring to health and entertainment. Sensor nodes can detect environmental parameters within their sensing range and route data to nodes within their communication range in a multi-hop manner. Sensor nodes often work together to monitor areas that are difficult for humans to access. A WSN may require a uniform node layout, and after sensor nodes are deployed, network reliability depends on several parameters, including connectivity, data routing delay, and accuracy of sensor event detection. [0003] WSN deployment involves several deci...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/12H04L12/715H04L12/733H04W40/20H04L45/122
CPCH04W40/10H04W40/12H04W40/125H04L45/46H04L45/126H04W40/20Y02D30/70
Inventor 张旭苹狄亮钱毅许晟杰李密
Owner NANJING UNIV
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