A method for adaptive adjustment of lorawan network rate based on conflict awareness
An adaptive adjustment, network rate technology, applied in network traffic/resource management, advanced technology, climate sustainability, etc., can solve the problems of reducing network performance, increasing the transmission time of a single data packet, increasing the probability of data conflict, etc. Effects of avoiding rate adjustments, increasing data throughput and packet delivery reliability
Active Publication Date: 2022-05-20
CHONGQING UNIV OF POSTS & TELECOMM
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the case of packet loss due to data conflicts, the original rate selection mechanism further reduces the rate, increases the transmission time of a single data packet, and further increases the probability of data collisions, which reduces network performance and fails to make the network reliable. Optimizing performance and throughput will limit the transmission efficiency of the LoRaWAN network
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
[0048] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0049] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
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 present invention relates to a method for self-adaptive adjustment of LoRaWAN network speed based on conflict perception, which belongs to the field of low-power wide-area network wireless technology, and comprises the following steps: S1: N LoRa nodes and several LoRa gateways are randomly and evenly distributed in a circular area , combined with the number of effective byte loads generated in this area, construct a throughput estimation model, and obtain a throughput index O; S2: According to the receiving sensitivity threshold and path loss characteristics of the LoRa node, construct a path loss packet loss model, and initialize each The node spreading factor, get the spreading factor preliminary set SF init ; S3: According to the transmission characteristics of LoRa, establish a collision probability estimation model to predict the collision probability P under the current network conditions mac ; S4: On the basis of steps S2 and S3, a conflict-aware based rate adaptive adjustment mechanism is established to adaptively adjust the terminal data rate.
Description
technical field [0001] The invention belongs to the field of low-power wide-area network wireless technology, and relates to a method for adaptively adjusting LoRaWAN network speed based on conflict perception. Background technique [0002] LoRa low power consumption wide area network technology has the characteristics of low power consumption and long transmission distance. The LoRaWAN protocol supports a variety of rate options, and its communication distance is inversely proportional to the transmission rate, that is, the faster the rate selected, the shorter the distance for successful communication. At the same time, due to the adoption of the spread spectrum technology, since the spread spectrum factors used at different rates are mutually orthogonal, the data transmission between the data transmission rates will not conflict with each other. In addition, the low-speed characteristics of LoRa result in a high air propagation time (ToA), which makes LoRa transmission o...
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 Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/22
CPCH04W28/22Y02D30/70
Inventor 谢昊飞张量刘代雄张旺林吴禹霜
Owner CHONGQING UNIV OF POSTS & TELECOMM