Sequential sleep-wake-up method for wireless chain topology networks

A topology network, chain technology, applied in the field of multi-hop network, can solve the problems of deteriorating service delay, broadband real-time service cannot be completed smoothly, etc., and achieve the effect of shortening the delay of the first packet and saving system power consumption.

Inactive Publication Date: 2020-05-05
JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

In the traditional low-power sleep design, the nodes of the entire network are in an asynchronous sleep state, which greatly deteriorates the service delay, resulting in the failure of many broadband real-time services to be successfully completed.

Method used

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  • Sequential sleep-wake-up method for wireless chain topology networks
  • Sequential sleep-wake-up method for wireless chain topology networks

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0025] The present invention will be described in a chain topology, but is not limited thereto. figure 1 Shown is the chained multi-hop topology network sleep process. The distance between nodes in the wireless chain topology network is equal or basically equal (the difference between the distances between nodes is within 10%); there is a root node 0 in the wireless chain topology network. Define the communication direction from the root node to the normal node as forward, and the communication direction from the normal node to the root node as the backward direction. For example, for node 2, node 1 is in the direction close to the root node of the network, which is called the backward node of node 2; node 3 is called the forward node of node 2.

[0026] When the business data transmission is completed or the root node listens overtime, the root node 0 can in...

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Abstract

The invention provides a sequential sleep and wakeup method for a wireless chain type topological network. All nodes in a network sleep according to a chain type topological sequence and are woken up in sequence; and a sleep and wakeup time difference between each node and the adjacent node is equal to one-hop air interface one-way transmission delay. Therefore, first-packet delay of real-time services in a wireless multi-hop environment can be reduced to the greatest extent. Periodic sleep of all nodes in the network is carried out under the circumstance that the real-time performance of the broadband services is not affected, so that the power consumption of the system can be saved; and when a service exists, a chain can be woken up rapidly.

Description

technical field [0001] The invention relates to a link sequence dormancy and wake-up scheme applicable to a wireless chain topology communication network, which can be used in a wireless chain topology multi-hop network and belongs to the field of wireless communication. Background technique [0002] The wireless chain communication system is suitable for application scenarios where the communication area is chain or strip topology. It has the characteristics of fast and flexible networking and chain topology. It is used in border defense, coastal defense, forest protection, high-voltage cables and oil pipeline monitoring There are unique advantages in application scenarios that require chain coverage, but in the above application scenarios, the geographical location is remote and the working environment is harsh, and it is often impossible to replenish energy regularly and effectively. Reducing energy consumption is a very important issue, and low power consumption design i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W52/04H04W52/24
CPCH04W52/02H04W52/0216H04W52/0229H04W52/04H04W52/24Y02D30/70
Inventor 徐加富董晋
Owner JIANGSU ZHONGKE YILIAN COMM TECH CO LTD
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