Wireless body area network resource allocation method and device based on hybrid access mechanism
A wireless body area network and resource allocation technology, applied in the field of wireless body area network resource allocation based on a hybrid access mechanism, can solve the problem of large time complexity, increased node transmission delay, and old data accumulation are not considered. problems, to achieve the effect of improving utilization, maximizing throughput, and reducing competition conflicts
Pending Publication Date: 2022-07-29
SOUTH CHINA UNIV OF TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, most of the resource allocation schemes proposed by many scholars use non-competitive time slot allocation schemes. This single-type access scheme cannot ensure the full transmission of urgent data and the low delay requirements.
In addition, scholars have not considered the accumulation of old data caused by long-term unsent data, which reduces the real-time performance and effectiveness of data.
Most of the existing solutions use greedy algorithm to solve, the time complexity is too large, which will increase the delay of node transmission
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0068] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention. The numbers of the steps in the following embodiments are only set for the convenience of description, and the sequence between the steps is not limited in any way, and the execution sequence of each step in the embodiments can be adapted according to the understanding of those skilled in the art Sexual adjustment.
[0069] In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a wireless body area network resource allocation method and device based on a hybrid access mechanism. The method comprises the following steps: dividing priorities of nodes according to data characteristics, and dividing types of the nodes according to the priorities; determining to send new data or old data according to the data cache change condition; executing backoff differentiated channel contention according to the priorities of the nodes; adaptively dividing a super-frame competition stage according to a channel state; determining the number of node time slots in a non-competitive stage according to the node transmission utility; and determining a node transmission sequence of the non-competitive stage according to the transmission priorities of the nodes. The invention provides a wireless body area network channel resource allocation scheme based on a hybrid access mechanism, which is suitable for a scene in which a node sends a large amount of data, and can reduce competition conflicts among nodes, improve the utilization rate of channel resources and maximize the throughput of node transmission. The method can be widely applied to the technical field of wireless body area networks.
Description
technical field [0001] The present invention relates to the technical field of wireless body area networks, and in particular, to a method and device for allocating wireless body area network resources based on a hybrid access mechanism. Background technique [0002] Wireless body area network is a sensor network with the human body as the research subject, and is mainly used in human health monitoring. The body area network consists of a coordinator and multiple wearable or implantable sensor nodes, where each sensor node collects one type of vital signs, such as body temperature, respiration rate, blood sugar, blood pressure, etc. The data is sent to the coordinator, and then the coordinator forwards it to the remote control center for processing and analysis of the data. [0003] Due to the heterogeneity of data types and sampling rates of sensor nodes, and the performance requirements of emergency data such as throughput and delay are higher than those of ordinary data,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04W74/02H04W74/04H04W74/08H04W72/04
CPCH04W74/02H04W74/04H04W74/08H04W74/0841H04W72/0446H04W74/0858
Inventor 王雯莹刘徐迅曾衍辉
Owner SOUTH CHINA UNIV OF TECH