A transmission scheduling method and system for communication data in a low-power wide area network
A technology for communication data and transmission scheduling, which is applied in wireless communication, network topology, energy consumption reduction, etc., and can solve problems such as difficulty in applying low-power wide-area networks
Active Publication Date: 2020-09-04
INST OF COMPUTING TECH CHINESE ACAD OF SCI
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In summary, the existing transmission scheduling methods are difficult to apply to low-power wide area networks, and it is necessary to study new transmission scheduling methods for low-power wide area networks
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
[0078] Aiming at the shortage of channel resources in low-power wide-area networks, a transmission scheduling method with high channel utilization is proposed, and at the same time, the key performances of network data delay, power consumption and load capacity are effectively improved. Solve the following two technical problems: 1. A low-overhead node traffic modeling method to achieve accurate prediction of stationarity cycles and event-driven node traffic. 2. High channel utilization transmission scheduling method, the gateway allocates time slots for nodes according to the prediction of the time slot corresponding to the data flow of the node, so as to avoid data collision and packet loss and reduce data delay as the optimization goal.
[0079] The transmission scheduling method based on time slot allocation proposed by the invention includes frame format definition, node and gateway data communication process definition and optimal time slot allocation algorithm. Technica...
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 relates to a transmission scheduling method and system for communication data in a low-power wide area network. The transmission scheduling method comprises the steps: 1, a wide area network is constructed, wherein the wide area network comprises a communication node and a gateway, the communication node is connected into the gateways in a single hop mode, and the gateway supplies atime service and allocates a communication time slot to the communication node during connection; 2, the communication node actively transmits communication data and a generation time of the communication data to the gateway in the communication time slot; 3, the gateway updates the communication time slot of the communication node according to the generation time and the communication time slot;and 4, the step 2 and the step 3 are cyclically conducted to achieve transmission scheduling of the wide area network. Accordingly, for the low-power wide area network, the method can achieve high channel utilization rate, low delay and low-power transmission scheduling in an application layer.
Description
technical field [0001] The invention relates to the field of wireless communication, and in particular to a transmission scheduling method and system for communication data in a low power consumption wide area network. Background technique [0002] The wireless sensor network is composed of a large number of autonomous nodes densely deployed in the monitoring area. It is a self-organizing network application system formed through wireless communication. It is widely used in military, intelligent transportation, environmental monitoring, medical and health and other fields. It is recognized as a high-tech industry with broad development prospects at home and abroad. [0003] Power consumption, cost and deployment difficulty are the three major problems faced by wireless sensor networks. Current wireless sensor networks generally use Zigbee nodes with low cost and mature protocol stacks. Zigbee is a standard low-power LAN protocol. Zigbee Nodes connect nodes in a self-organiz...
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): H04W52/02H04W72/04H04W84/18
CPCH04W52/0203H04W72/0446H04W84/18Y02D30/70
Inventor 江涛黄希崔莉
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI