A Large-scale Ad Hoc Network Method Based on Backoff Mechanism in Wireless Sensor Networks

A wireless sensor and back-off mechanism technology, applied in wireless communications, data exchange networks, transmission systems, etc., can solve problems such as energy consumption, load unbalanced routing loops, etc., to improve network throughput and space reuse, and optimize the network. Structure, energy saving effect

Active Publication Date: 2018-10-12
CHONGQING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of energy consumption, unbalanced load, and routing loops in large-scale networks of wireless sensors. Collisions save energy, improve network throughput and space reusability, and optimize the network structure by dynamically adjusting the value of the initial backoff adjustment coefficient R to achieve energy-saving effects

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  • A Large-scale Ad Hoc Network Method Based on Backoff Mechanism in Wireless Sensor Networks
  • A Large-scale Ad Hoc Network Method Based on Backoff Mechanism in Wireless Sensor Networks
  • A Large-scale Ad Hoc Network Method Based on Backoff Mechanism in Wireless Sensor Networks

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention will be further described:

[0023] Such as figure 1 As shown, the implementation process of the technical scheme of this scheme is as follows:

[0024] 1. Pre-configuration stage

[0025] The system is initialized, and the initial backoff adjustment coefficient R is pre-configured; the base station (sink node) sets its own communication overhead to LN, and the communication overhead of other common nodes to infinity. After the system starts, the "Hello" message includes the ID information of the node and its own stored communication overhead value field,

[0026] The base station configures and initializes the backoff adjustment coefficient R for common nodes, sets its own communication overhead as LN, and sets the communication overhead of other nodes as infinity.

[0027] 2. Networking stage

[0028] The base station broadcasts a "Hello" message first, and the "Hello" message includes the ID in...

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Abstract

The present invention requests protection of a large-scale ad hoc network method based on a backoff mechanism in a wireless sensor network. According to the road quality and communication overhead, calculate your own backoff time. If no networking message broadcast by other nodes is received within the backoff time, set the node that sent the message as its parent node, otherwise recalculate its own backoff time and choose the shortest backoff time as its new backoff time time. All nodes in the network form a large-scale self-organizing network according to the above-mentioned networking method. In the present invention, the link communication overhead and the backoff time are combined, and the backoff coefficient can be dynamically adjusted according to the link quality in the actual application environment and the signal strength in the message transmission process, thereby optimizing the network structure and achieving the effect of energy saving .

Description

technical field [0001] The invention belongs to the application field of wireless sensor network technology. Specifically, it is a large-scale networking method suitable for wireless sensor networks. Background technique [0002] Wireless sensor network has attracted more and more attention because of its broad application prospect, but it has always been a research hotspot in academic circles because of its limited resources, unsafe working environment and low cost requirements. In wireless sensor networks, sensor nodes are generally deployed in an environment without network infrastructure, such as spreading a large number of sensor nodes into a vast virgin forest by aircraft, or randomly placing them in inaccessible or dangerous areas. Under such circumstances, sensor nodes are required to have self-organization capabilities, and can automatically configure and manage, and automatically forward the multi-hop wireless network system of detection data through topology cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/753H04L12/751H04W40/24H04W74/08H04L45/02
CPCH04L45/026H04L45/48H04W40/246H04W74/085Y02D30/70
Inventor 王浩寇伟王平陈伟刘颖
Owner CHONGQING UNIV OF POSTS & TELECOMM
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