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

A Method of Full Duplex Media Access Control Protocol Based on Two-Phase Contention

A technology for media access control and access control, which is applied in the field of wireless network communication and can solve problems such as unreasonable and unconsidered

Active Publication Date: 2020-11-20
XIDIAN UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the full-duplex MAC protocol, it is obviously unreasonable for the node that wins the first-stage transmission to designate its node for full-duplex transmission regardless of the competition between the second-stage transmission nodes.

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 Method of Full Duplex Media Access Control Protocol Based on Two-Phase Contention
  • A Method of Full Duplex Media Access Control Protocol Based on Two-Phase Contention
  • A Method of Full Duplex Media Access Control Protocol Based on Two-Phase Contention

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0092] Such as figure 1 , 2 As shown, there are several full-duplex wireless networks, each network contains N full-duplex nodes, and all full-duplex nodes have the same full-duplex efficiency η, and each full-duplex node is equipped with a transmitting antenna With a receiving antenna, it can realize sending and receiving data at the same frequency at the same time. Channel 1 and the full-duplex channel corresponding to channel 1 are full-duplex channels of the same frequency. There are two kinds of full-duplex links in a full-duplex wireless network. If full-duplex wireless transmission occurs between two nodes, the link is called a two-node wireless full-duplex bidirectional link. If the first node has data to send to the second node, and the second node has data to send to the third node at the same time, the link is called a three-node wireless full-duplex asymmetric link. There are two types of full-duplex contention in all full-duplex links: two-node-initiated cont...

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 two-stage competition-based MAC (media access control) protocol method in a full duplex wireless network, and proposes a method using a two-stage competition-based TF-MAC protocol to optimize the full duplex wireless network throughput; the control protocol comprises a RTS / FCTS / CTS handshake mechanism and a full duplex back off algorithm, thus solving the hidden node problems in the full duplex network, and reducing data frame bumping in the first stage transmission and the second node transmission; the method is suitable for a two-node symmetrical full duplex link and a three-node asymmetric full duplex link; the method can select three types of competition node transmission probabilities so as to obtain the optical throughput of the full duplex wireless network;the method uses a cascade two dimensional Markov chain model to analyze the performance of the full duplex wireless network employing the TF-MAC protocol, thus obtaining a full duplex wireless network throughput enclosed expression, and using the simulation result to verify the validity of the proposed TF-MAC protocol.

Description

technical field [0001] The invention belongs to the technical field of wireless network communication, and in particular relates to a method of full-duplex media access control protocol based on two-stage competition. Background technique [0002] Compared with the half-duplex wireless communication technology, the full-duplex wireless communication technology has the potential of doubling the spectral efficiency, which can double the rate of the physical layer, so it has received extensive attention. A key challenge in the application of full-duplex wireless communication technology is how to suppress the self-interference between the transceiver antennas of the same node, and the continuous improvement of self-interference cancellation technology can significantly reduce the self-interference of full-duplex wireless communication transceiver antennas. Because the data link layer urgently needs to improve the throughput, therefore, in the full-duplex wireless network, an ef...

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): H04L29/06H04L5/14
CPCH04L5/14H04L69/03H04L69/26
Inventor 周彦果周韬张海林
Owner XIDIAN 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