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A Method to Avoid Mutual Interference Between Static or Semi-Dynamic Coexisting Body Area Networks

A mutual interference and body area network technology, applied in the field of avoiding mutual interference between static or semi-dynamic coexisting body area networks, can solve problems such as limited channel resources, lack of consideration of limited channel resources, and unguaranteed performance of body area networks. To achieve the effect of maximizing channel utilization

Active Publication Date: 2021-05-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the body area network and WiFi sometimes use the same channel, the available channel resources are limited, but the solutions proposed by many scholars do not consider the problem of limited channel resources. If the channel status used by the body area network is not good, even The problem of coexistence interference has been alleviated through certain methods, but the performance of the body area network is still not guaranteed

Method used

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  • A Method to Avoid Mutual Interference Between Static or Semi-Dynamic Coexisting Body Area Networks
  • A Method to Avoid Mutual Interference Between Static or Semi-Dynamic Coexisting Body Area Networks
  • A Method to Avoid Mutual Interference Between Static or Semi-Dynamic Coexisting Body Area Networks

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Embodiment

[0056] This embodiment discloses a method for avoiding mutual interference between static or semi-dynamic coexisting body area networks, which is applied to a wireless body area network composed of several sensor nodes and a coordinator, such as figure 1 As shown, when the transmission ranges of multiple body area networks overlap, conflicts may occur due to the use of the same channel or time slot, and static or semi-dynamic coexistence interference of multiple body area networks will make the movement time between networks much shorter than the stable time , resulting in a decrease in the performance of the body area network, so it is necessary to allocate different channels to the coexisting body area network to avoid mutual interference between adjacent body area networks. Such as figure 2 As shown, the method includes the following steps:

[0057] S1. Each body area network coordinator sends its own neighbor information to the coordinator of its neighbor network until a...

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Abstract

The present invention discloses a method for avoiding mutual interference between static or semi-dynamic coexisting body area networks. All BANs have the same neighbor information table; then the body area network coordinator with the largest number of neighbor networks classifies all body area networks according to the neighbor information table; then assigns different channels to each category according to the classification results, and Broadcast the allocation message to all BANs; when a new BAN joins or an existing BAN leaves, reclassify BANs and allocate channels. The present invention is applicable to the scene where static or semi-dynamic multiple body area networks coexist and interfere, can avoid mutual interference between body area networks, and improve channel utilization.

Description

technical field [0001] The invention relates to the technical field of wireless body area networks, in particular to a method for avoiding mutual interference between static or semi-dynamic coexisting body area networks. Background technique [0002] Wireless body area network is a human body monitoring technology applied in health care. The body area network includes a coordinator and several sensor nodes. The sensor nodes are arranged on the human body or implanted inside the human body to collect various parameters of the human body, such as electrocardiogram, body temperature, etc. The coordinator is used to receive the data collected by the sensor nodes, and then fuse and send the data to the server or medical center. [0003] With the development of wireless body area network technology, more and more people will use wireless body area network. When multiple people carrying wireless body area networks are together (such as nursing homes, hospital halls, etc.), they m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W4/08H04W24/04H04W72/04H04W84/18
CPCH04W4/06H04W24/04H04W4/08H04W72/0453H04W84/18H04W72/51
Inventor 范伶刘徐迅曾衍辉
Owner SOUTH CHINA UNIV OF TECH
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