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

Multi-channel multiple access method based on MIMO transmission mechanism

An access method and transmission mechanism technology, applied in the field of multiple-input multiple-output transmission mechanisms, can solve problems such as control channel bottlenecks, achieve the effects of simple implementation, reduced end-to-end delay, and improved network throughput

Inactive Publication Date: 2015-08-12
NORTHWESTERN POLYTECHNICAL UNIV
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, this patent aims to use the multiple-input multiple-output MIMO (Multiple-Input Multiple-Output) transmission technology to solve the control of the existence of the DCA protocol without the need for network time synchronization and without introducing additional overhead. Channel bottleneck problem, further improve system throughput performance

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
  • Multi-channel multiple access method based on MIMO transmission mechanism
  • Multi-channel multiple access method based on MIMO transmission mechanism
  • Multi-channel multiple access method based on MIMO transmission mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] The scheme principle of the present invention can refer to figure 1 . The present invention can be implemented in the wireless network card through firmware, or in the driver program of the wireless network card. The implementation of the present invention will be described in detail below in conjunction with examples.

[0028] 1. The construction method of the channel usage list

[0029]Each node using the access method of the present invention will create and maintain two structure linked lists: a data channel usage list DCUL (Data Channel Usage List) and an available channel list ACL (Available Channel List). The DCUL stores the usage information of all neighboring nodes on the data channel, and the ACL stores the data channel labels that the current node can use. The details of DCUL and ACL are as follows:

[0030] The structure in DCUL ...

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 multi-channel multiple access method based on an MIMO transmission mechanism. During the competitive stage, a node reuses a data antenna to carry out channel competition in a common control channel, after the channel competition is successes, selection of the data channel and confirmation of data transmission period duration are completed through interaction information in a 2*2MIMO manner, and during a transmission stage, the node reuses a control antenna to transmit a data packet in a data channel. The multi-channel multiple access method based on the MIMO transmission mechanism is simple to implement, and can be implemented in firmware which supports multi-channel network cards, and can be implemented in a driving program at the same time, and the network throughput is greatly increased; by employing a distributed working mode, a centralized control node and whole network time synchronization are not needed, a control packet and the data packet can be transmitted in a 2*2MIMO transmission manner, substantial spatial multiplexing gain can be brought about, furthermore the system performance is greatly improved, the network throughput is increased, and the end-to-end time delay is reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a multiple-input multiple-output transmission mechanism. Background technique [0002] At present, due to the convenience and flexibility of WLAN, it has been developed by leaps and bounds. However, with the continuous growth of the number of mobile users and the increasing demand of users for high-bandwidth services, such as video conferencing and other high-bandwidth services, channel resources become increasingly tight. Therefore, how to maximize the use of the current limited channel resources has become one of the most concerned issues in WLAN. [0003] At present, the traditional single-channel multiple access method based on IEEE 802.11 has been unable to effectively meet the growing demand for large-bandwidth services. Therefore, in order to more effectively use the multi-channel resources in the wireless network, for example, IEEE802. Different data transmission...

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 Applications(China)
IPC IPC(8): H04W74/08H04B7/04
CPCH04B7/0413H04W74/08
Inventor 李波杨博杨懋闫中江左晓亚
Owner NORTHWESTERN POLYTECHNICAL 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