Unlock instant, AI-driven research and patent intelligence for your innovation.

Code-aware routing for wireless multi-hop networks based on improved coding conditions and gain guarantees

A wireless multi-hop, coding conditional technology, applied in wireless communications, electrical components, etc., can solve the problems of increasing network overhead, network coding, and multiple retransmissions, avoiding decoding failures, reducing discovery overhead, and improving accuracy. Effect

Active Publication Date: 2021-04-13
NANJING UNIV OF POSTS & TELECOMM
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of poor wireless link quality, wireless monitoring may require multiple retransmissions, which will cause the additional transmission required for wireless monitoring to decode more than the gain brought by network coding, so that network coding actually increases the network Overhead, making using network coding outweighs the benefits

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
  • Code-aware routing for wireless multi-hop networks based on improved coding conditions and gain guarantees
  • Code-aware routing for wireless multi-hop networks based on improved coding conditions and gain guarantees
  • Code-aware routing for wireless multi-hop networks based on improved coding conditions and gain guarantees

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The coding-aware routing method based on improved coding conditions and gain guarantees in the wireless multi-hop network of the present invention includes the following contents:

[0051] (1) Routing request: the source node creates a routing request message RREQ (RouteREQuest) whose destination is the destination node, and forwards it. After the intermediate node receives the routing request message, it will record the expected transmission times ETX (Expected Transmission Count) of the wireless link from the up-hop node to the current node, the neighbor information of the current intermediate node, and the corresponding wireless link to each neighbor node. Link ETX value, and store this information in the RREQ message, and then the intermediate node forwards the updated RREQ message.

[0052] (2) Route return: After receiving the RREQ message, the destination node will create a route reply message RREP (RouteREPly). The destination node copies the path information d...

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 present invention is a wireless multi-hop network coding-aware routing based on improved coding conditions and gain guarantees, (1) using inter-flow network coding to reduce the number of data transmissions and improving the throughput and transmission efficiency of wireless multi-hop networks; (2) using the improved network Coding conditions, calculate the network coding opportunities of nodes, find most of the two data stream network coding opportunities, avoid the problem that the destination node cannot decode, improve the accuracy of network coding discovery, and reduce the network coding discovery overhead; (3) use coding gain The guarantee mechanism calculates the actual network coding gain to ensure that network coding can improve routing performance. The present invention applies the improved network coding conditions and gain guarantee mechanism to network coding perception routing, reduces the overhead of network coding opportunity discovery, improves the accuracy of network coding opportunities, ensures that network coding opportunities can play a positive role in routing transmission, and improves routing transmission. efficiency and improve network throughput.

Description

technical field [0001] The invention specifically relates to a network coding-aware routing method in a wireless multi-hop network, which is mainly applicable to route discovery and data transmission path selection in a wireless multi-hop network. Introduced improved network coding conditions to reduce network coding opportunity discovery overhead. The network coding gain guarantee mechanism is introduced to balance the retransmission overhead required for wireless monitoring and the network coding gain. When the wireless monitoring retransmission overhead is greater than the network coding gain, network coding is not performed; otherwise, network coding is implemented to ensure that network coding improves routing performance. . It belongs to the field of wireless network technology. Background technique [0002] A wireless multi-hop network is a wireless communication system constructed by nodes with wireless transceiver devices in a self-organizing manner. Each node in...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W40/22H04W40/24
CPCH04W40/02H04W40/22H04W40/246H04W40/248
Inventor 皋乐陶
Owner NANJING UNIV OF POSTS & TELECOMM