Multi-channel multiple access method based on reliable multi-step channel reservation mechanism

A technology of channel reservation and access method, which is applied in the field of communication to achieve the effects of reducing implementation overhead and complexity, improving network throughput, and improving system performance

Inactive Publication Date: 2015-09-09
NORTHWESTERN POLYTECHNICAL UNIV
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of the prior art, the present invention solves the problem of multi-channel hidden terminals on the premise that network time sync

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 reliable multi-step channel reservation mechanism
  • Multi-channel multiple access method based on reliable multi-step channel reservation mechanism
  • Multi-channel multiple access method based on reliable multi-step channel reservation mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] 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.

[0037] 1. Construction method of control channel / data channel usage list

[0038] Each node using the access method of the present invention will create and maintain three structured linked lists: a control channel usage list (CCUL: Control Channel Usage List), a data channel usage list (DCUL: Data Channel Usage List) and an available channel list ( ACL: Available Channel List). Among them, CCUL and DCUL respectively store information on the use of control channels and data channels by all neighboring nodes, and ACL stores the labels of data channels that can be used by the current node. The det...

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 provides a multi-channel multiple access method based on a reliable multi-step channel reservation mechanism. The method mainly comprises control channel reservation and data channel reservation. When a node competes successfully in a common control channel according to a distributed coordination function mechanism, a sending node and a receiving node exchange requests on a control channel to send information, and the selection of a data channel, the reservation on the control channel and the reservation on the data channel are completed. According to the method, the multichannel hidden terminal problem is solved by using the control channel reservation, through using multi-step data channel reservation, the data packet transmission without a conflict can be realized with only one control handshake, the control channel congestion is effectively alleviated and the MAC efficiency is improved, and the system performance is greatly improved, which means that the network throughput is improved and the average packet delay is reduced. According to the method, only one set of transceiver is needed, the realization is simple, a central control nodes and entire network synchronization are not needed, and the realization cost and complexity are reduced.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a multi-channel multiple access protocol. Background technique [0002] In a wireless communication system (such as a wireless local area network WLAN, a cellular network, etc.), there are usually multiple available wireless channels. For example, there are 3 non-overlapping channels on the unlicensed 2.4GHz band and 12 non-overlapping channels on the 5GHz band. The continuous growth of the number of mobile users and the continuous increase of users' demand for large-bandwidth services, such as video conferencing and other services, put forward new requirements for the improvement of the throughput of wireless communication systems. Therefore, how to design an efficient multi-channel multiple access (Multi-channel MAC, McMAC) protocol, so as to make full use of multiple wireless channels and improve the throughput of the wireless network, has become a very urgent problem t...

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): H04W74/08
CPCH04W74/08
Inventor 闫中江杨博李波杨懋
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap