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

A Distributed Media Access Control Method Based on Analog Network Coding

A medium access control and analog network coding technology, applied in the field of medium access control for analog network coding, can solve the problems of high complexity, reduced system performance, no consideration of no bidirectional data, etc., to achieve low implementation cost, reduced impact, Resolve overly complex effects

Active Publication Date: 2018-03-20
SHANGHAI JIAO TONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] (1) In wireless networks with complex topological structures such as mesh networks and ad hoc networks, the complexity of establishing cooperative groups through scheduling algorithms in existing methods is too high. A feasible alternative is to use dynamic random distribution collaborative approach
[0004] (2) Existing methods do not consider the situation when there is no two-way data between cooperative groups
In fact, this situation is very common and can greatly reduce system performance
[0005] (3) Existing methods do not consider the degradation of system performance caused by the hidden terminal problem

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
  • A Distributed Media Access Control Method Based on Analog Network Coding
  • A Distributed Media Access Control Method Based on Analog Network Coding
  • A Distributed Media Access Control Method Based on Analog Network Coding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The present invention will be further described below in conjunction with the accompanying drawings.

[0044] Such as Figure 2 to Figure 6 As shown, the present invention designs five control frames: RTS, CTS, RTC (Request to Cooperate), ATC (Answer to Cooperate) and COF (Channel Occupation Frame).

[0045] Such as figure 2 As shown, the RTS frame is sent by the originating node A to the rebroadcasting node B, for initiating a request for establishment of cooperation. In the RTS frame, the CA field contains the address of the coordinating node C. The frame structure of the COF frame is the same as that of the RTS frame, and is broadcast by the initial node A to other nodes in the network.

[0046] Such as image 3 As shown, the RTC frame is sent by the rebroadcasting node B to the cooperative node C for rebroadcasting the cooperation establishment request of the initial node. In the RTC frame, the IA field contains the address of the initial node A, and the FA fi...

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 discloses a distributed media access control method based on analog network coding. The method includes the following steps that (1) a rebroadcasting node sends RTC control frames to a cooperation node after receiving RTS control frames sent by an initial node; (2) after receiving the RTC control frames, the cooperation node sends ATC control frames to a forwarding node if data need to be sent to the initial node; (3) when receiving the ATC control frames before waiting time is up, the rebroadcasting node sends CTS control frames; (4) after the initial node and the cooperation node receive the CTS control frames, a cooperative group is established successfully, and data sending can be started; (5) after data transmission is finished, the initial node and the cooperation node send ACK signals for confirmation in an analog network coding mode. According to the distributed media access control method based on analog network coding, dynamic establishment of the cooperative group in a wireless network is achieved through control frame exchanging, and complex parameter obtaining in traditional scheduling algorithms is avoided.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a medium access control method for analog network coding in a wireless network. Background technique [0002] Analog network coding can greatly improve the spectrum efficiency of wireless communication. In practical multi-hop wireless networks, a corresponding medium access control method is needed to coordinate the transmission between nodes. Existing media access control methods suffer from the following limitations: [0003] (1) In wireless networks with complex topological structures such as mesh networks and ad hoc networks, the complexity of establishing cooperative groups through scheduling algorithms in existing methods is too high. A feasible alternative is to use dynamic random distribution way to create collaborative groups. [0004] (2) Existing methods do not consider the situation when there is no bidirectional data between cooperative groups. In fact, this...

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): H04L1/16H04L1/00H04L29/06
CPCH04L1/0076H04L1/1607
Inventor 王旭东毛文广
Owner SHANGHAI JIAO TONG UNIV
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