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

Broadband wireless ad hoc network MAC-layer protocol method based on TDMA

A broadband wireless and ad-hoc network technology, applied in wireless network protocols, wireless communications, electrical components, etc., can solve the problems of high cost and difficult technical implementation, and achieve the effect of simple structure, easy engineering implementation, and small amount of calculation

Inactive Publication Date: 2015-11-11
MINNAN NORMAL UNIV
View PDF6 Cites 41 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are generally three methods of channel access protocols used: FDMA (Frequency Division Multiple Access), CDMA (Code Division Multiple Access) and TDMA (Time Division Multiple Access). FDMA and CDMA generally have high costs and technical implementation difficulties. Large and insufficient

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
  • Broadband wireless ad hoc network MAC-layer protocol method based on TDMA
  • Broadband wireless ad hoc network MAC-layer protocol method based on TDMA
  • Broadband wireless ad hoc network MAC-layer protocol method based on TDMA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will now be further described with reference to the drawings and specific embodiments.

[0032] As a specific example, such as Figure 1 to Figure 4 As shown, the MAC layer protocol method of a broadband wireless ad hoc network based on TDMA of the present invention, the protocol frame structure includes control channel CCH (ControlChannel), access channel RCH (RandomAccessChannel), traffic channel TCH (TrafficChannel), in In a wireless ad hoc network, each node interacts with control signaling through a control channel, each node uses a service channel to transmit service data, and each node accesses the network through an access channel.

[0033] The control channel is used for control signaling interaction, and the interaction process is as follows: figure 2 As shown, the fixed allocation method is adopted, and each node occupies only one control time slot; the access channel is used when the node accesses the network, and is a common channel. The n...

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 relates to the technical field of wireless communication and specifically to a broadband wireless ad hoc network MAC-layer protocol method based on TDMA. The method comprises a step 1 of selecting a central control node in a network; a step 2 of enabling each node to send a control signaling at a control time slot thereof, wherein the control signaling comprises a neighbor state table and a time slot distribution table; a step 3 of enable each node to perform monitoring at a control time slot not belonging to the node; a step 4 of when each node acquires the whole-network topological structure information after a little interaction, enabling the central control node to distribute time slots according to the whole-network topological structure by using an improved sequence vertex coloring algorithm; a step 5 of enabling all nodes in the network to determine the service time slots of their own according to the time slot distribution table and to transmit data packets at the control time slots of their own; a step 6 of applying for a requirement at an access time slot if a new node get access to the network or a node is to exit the network; and a step 7 of jumping to the step 2. The method achieves time slot multiplexing and dynamic distribution.

Description

Technical field [0001] The invention relates to the technical field of wireless communication, in particular to a TDMA-based MAC layer protocol method of a broadband wireless ad hoc network. Background technique [0002] The mobile Adhoc network is a brand-new mobile communication technology. It is a multi-hop wireless communication network without a center and self-organization. It can form a temporary network anytime and anywhere without other existing fixed facilities. In order to realize the normal operation of the wireless ad hoc network, it faces many challenges and problems. Among them, the design of the channel access protocol is a key technical problem faced by Adhoc. Because wireless ad hoc networks have the characteristics of no center, multi-hop, large network topology changes, etc., the design of the MAC protocol will face many technologies such as spatial reuse, conflict handling, exposed / hidden terminal problems, fairness, and energy saving. problem. Currently, m...

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): H04W72/04H04W72/12
CPCH04W72/0446H04W72/1263H04W74/0841H04W80/02
Inventor 王灵芝陈凌宇袁艾莎
Owner MINNAN NORMAL 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