Superframe-based efficient media access control method in wireless body area network

A media access control and wireless body area network technology, applied in the field of communication, can solve problems such as waste, inability to distinguish business priorities and time slots during non-competition periods, and achieve the effect of improving utilization and overall performance

Active Publication Date: 2011-07-13
XIDIAN UNIV
View PDF3 Cites 43 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to propose a high-efficiency media based on superframes in wireless body area networks in view of the shortcomings that the IEEE 802.15. The access control method, on the one hand, ensures that high-priority se

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
  • Superframe-based efficient media access control method in wireless body area network
  • Superframe-based efficient media access control method in wireless body area network
  • Superframe-based efficient media access control method in wireless body area network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] Assuming that the network model adopted is a star network, the data of all ordinary nodes are sent to the coordination point located in the center of the network; the network adopts the beacon-enabled mode; the services of all ordinary nodes are transmitted through guaranteed time slots. Its specific implementation steps refer to Figure 5 ,Described as follows:

[0043] Step 1, send a beacon frame.

[0044] At the beginning of a superframe, the coordination point constructs a beacon frame, whose frame structure is as follows Figure 6 As shown, the beacon frame is improved on the basis of the beacon frame structure in IEEE802.15.4. Compared with the beacon frame format in IEEE 802.15.4, the beacon frame is in the GTS description field, and the start of the GTS The number of occupied time slots of the time slot and GTS is increased by 2 bits respectively, which are used to describe the information of the mini-slot. The coordination point sends the beacon frame in bro...

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 superframe-based efficient media access control method in a wireless body area network, mainly solving the problems that an IEEE (Institute of Electrical and Electronic Engineers) 802.15.4 protocol is incapable of distinguishing service priorities and has time slot waste in a non-competitive period in a wireless body area network. The superframe-based efficient media access control method is realized by adopting the steps of: in a competitive period, setting the competitive period into a high priority service dedicated time slot H, a high priority service spare time slot h and a common time slot by adopting a time slot ALOHA competition mechanism based on the service priority, wherein a common node adopts the three different competition mechanisms according to the quantity of high priority services in the current superframe competitive period; and in a non-competitive period, ensuring that allocation and utilization of a GTS (Guarantee Time Slot) service are carried out by utilizing a micro time slot as a unit and adopting a micro time slot mechanism so as to realize the effective utilization of the time slot. Compared with the IEEE 802.15.4 protocol, thesuperframe-based efficient media access control method disclosed by the invention can not only ensure that the high priority service is transmitted with a higher success probability, but also effectively improve the time slot utilization ratio in the non-competitive period and is suitable for the wireless body area network.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a media access control method, in particular to a media access control method used in a wireless body area network. Ensure the successful transmission of high-priority services and the effective use of time slots. Background technique [0002] Wireless Body Area Network (WBAN) is a communication network centered on the human body and composed of various nodes and personal terminals distributed on the human body, clothing, and even inside the human body. Through WBAN, people can communicate and synchronize data with their personal electronic devices such as personal digital assistants PDA and mobile phones. WBAN and other data communication networks, such as wireless / wired access networks, mobile communication networks, etc., together constitute a part of the entire communication network. WBAN can communicate with any terminal in the network, such as mobile phone, telephone,...

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
Inventor 李长乐王玲玲张坤刘永俊李建东武倩倩
Owner XIDIAN 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