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

A wireless medium access control method in ultra-narrowband communication mode

A communication mode, wireless media technology, applied in sustainable communication technology, advanced technology, sustainable building and other directions, can solve the problems of high complexity, multiple iterations, etc., to ensure reliability and real-time, improve flexibility, The effect of reducing intersymbol interference

Inactive Publication Date: 2015-12-02
SOUTHEAST UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to multiple iterations of the WSA algorithm, the optimal SO / BO value and GTS allocation scheme can be determined, but it is only applicable to periodic data and the time delay requirement has been given quantitatively. The algorithm needs multiple iterations, and the complexity is relatively high. high

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 wireless medium access control method in ultra-narrowband communication mode
  • A wireless medium access control method in ultra-narrowband communication mode
  • A wireless medium access control method in ultra-narrowband communication mode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] The performance improvement simulation of the present invention in the CAP stage is realized by adopting OPNET network simulation software. The simulation parameters of the original standard and the present invention are almost the same, and both use a star network topology, including a coordinator and 15 nodes. The specific parameters are shown in Table 8.

[0098] Table 8 Performance Simulation Parameters and Values ​​of the CAP Stage of the Present Invention

[0099] Simulation parameters

[0100] In this embodiment, the rate of the physical layer is only doubled, which is set to 500 kbps. Of course, at a higher rate, the performance improvement is more obvious. The simulation results are shown in Figure 7. Indicate the change of network load with packet sending interval, and measure the CAP delay times, average energy consumption, throughput and end-to-end delay performance of network nodes. The main reasons that limit the performance of the CAP stage a...

Embodiment 2

[0102] The OPNET network simulation software is used to realize the performance improvement simulation of the present invention in the CFP stage. Literature [15] carried out the throughput and delay performance simulation of the original standard GTS mechanism, and came to the conclusion that the best throughput and delay performance can be provided when SO=BO=2, so when simulating the performance of the original standard CFP stage, the The parameters of Table 9 to maximize the performance of the original standard. In addition, in order to reflect that the present invention has good dynamic adaptive transmission capability for both periodic data and bursty data, the MSDU packet size is set to be uniformly distributed within 1 to 912 bits, where 912 bits is the maximum MSDU value specified in the standard; The number of nodes applying for GTS at the same time is set to 15 to reflect that the present invention breaks through the limitation of 7 GTSs and improves the performance ...

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 wireless media access control method in an ultra-narrow-band communication mode. The method including the steps of adding an ultra-narrow-band efficient modulation mode on a physical layer according to an existing wireless personal area network standard, providing four different speeds, effectively improving spectral efficiency, dividing a media access control layer into a CAP stage and a CFP stage, and channel access control methods are adopted respectively at the CAP stage and the CFP stage. According to a GTS distribution scheduling protocol based on EBPSK, the GTS can be distributed and scheduled according to needs by using a method based on speed priority, flexibility of the GTS mechanism is greatly improved, the network throughput and delayed performance at the CFP stage are greatly improved, and energy consumption at the CFP stage is reduced. A simulation result shows that the wireless media access control method can support application scenarios with high energy efficiency, high capacity and low time delay on the condition that node intensive deployment is supported.

Description

field of invention [0001] The invention relates to the field of wireless communication, in particular to a wireless medium access control method in an ultra-narrowband communication mode. Background of the invention [0002] The Low-Rate Wireless Personal Area Network (LR-WPAN) standard specification developed by the IEEE802.15.4 working group aims to provide a wireless personal communication solution with low speed, low complexity, low power consumption and short-distance transmission characteristics. A solution that enables low-speed data transmission between fixed, portable, or removable devices. Due to the characteristics of low implementation cost, low complexity and low power consumption (battery life of several months to several years) and other characteristics of its equipment, it has become the mainstream standard of Wireless Sensor Networks (Wireless Sensor Networks, WSNs). [0003] The latest version of IEEEStd802.15.4-2011 standard document "Low-RateWirelessPers...

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): H04L27/18
CPCY02B60/50Y02D30/70
Inventor 徐平平程梦莉苏德荣聂晴吴琼
Owner SOUTHEAST 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