Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cross-layer QOS (Quality of Service) routing method based on node occupancy rate in wireless sensor network

A wireless sensor and occupancy technology, applied in wireless communication, electrical components, etc., can solve the problems of energy consumption, frequent occurrence, and increased delay of task transmission data.

Active Publication Date: 2012-06-27
CHONGQING UNIV OF POSTS & TELECOMM
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only increases the network load, but also consumes its own energy
Secondly, when there are too many parallel tasks in the network, some nodes on the optimal path are already busy. If a new task selects one of the nodes at this time, the delay of task transmission data will increase, or even Packet loss occurs frequently

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cross-layer QOS (Quality of Service) routing method based on node occupancy rate in wireless sensor network
  • Cross-layer QOS (Quality of Service) routing method based on node occupancy rate in wireless sensor network
  • Cross-layer QOS (Quality of Service) routing method based on node occupancy rate in wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032]The present invention will be further described below in conjunction with drawings and embodiments.

[0033] A cross-layer QOS routing method based on node occupancy in a wireless sensor network, the routing steps are as follows:

[0034] 1) The source node sends a RREQ packet message to an idle adjacent node, and if there is no idle adjacent node, sends a RREQ packet message to an adjacent node with low occupancy;

[0035] 2) After receiving the RREQ packet message, the intermediate node compares the target node address with its own routing table, if the target node address is in the routing table, then go to step 3); if the target node address is not in the routing table, then go to step 4);

[0036] 3) Send the RREQ packet message to the target node;

[0037] 4) Send a RREQ packet message to an idle adjacent node, if there is no idle adjacent node, send a RREQ packet message to an adjacent node with a low occupancy, and return to step 2);

[0038] 5) After the targe...

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

No PUM Login to View More

Abstract

The invention provides a cross-layer QOS (Quality of Service) routing method based on a node occupancy rate in a wireless sensor network. The method comprises the following routing steps of: 1) sending RREQ (Routing Request) grouping information to adjacent idle nodes by a source node; if no adjacent idle nodes exist, sending the RREQ grouping information to the adjacent nodes with the low occupancy rate; 2) comparing a target node address with a self routing table; if the target node address is on the routing table, carrying out step 3); otherwise, carrying out step 4); 3) sending the RREQ grouping information to the target node; 4) sending the RREQ grouping information to the adjacent idle nodes; if no adjacent idle nodes exist, sending the RREQ grouping information to the adjacent nodes with the low occupancy rate and returning back to the step 2); and 5), after receiving the RREQ grouping information by the target node, establishing a communication link. According to the invention, the selection of the nodes is controlled by the node occupancy rate; in a route inquiring process, the nodes at a transmission state are bypassed, so that the queuing time delay is reduced.

Description

technical field [0001] The invention relates to a routing method, in particular to a routing method based on node occupancy. Background technique [0002] Wireless sensor network involves many interdisciplinary hot fields such as microcomputer electronic system technology, modern network technology, wireless communication technology, and sensor technology. In 2003, the US "Business Weekly" discussed in a special edition, listing wireless sensor networks as the first emerging technology in the future. The US "Defense Today" even believes that the application and development of wireless sensor networks will cause an epoch-making change. In 2004, "IEEE Spectrum" magazine focused on the future of wireless sensor networks, and foreign developed countries started research on wireless sensor networks very early. For example, the United States proposed the concept of "smart dust" in 1998 to monitor the enemy. Conducted research including REMBASS, CEC, SensorIT, SmartDust, WINS an...

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
no application Login to View More
IPC IPC(8): H04W40/04H04W40/24
Inventor 尚凤军刘鹏
Owner CHONGQING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com