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802.11 beacon frame-based network node positioning information transmission method

A positioning information and transmission method technology, applied in the field of network node positioning information transmission, can solve the problems of sudden increase in complexity, waste of network resources, high cost, etc., and achieve the effect of rapid diffusion of positioning information

Inactive Publication Date: 2019-05-28
JIANGSU ZHONGLI ELECTRONICS INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are obviously two problems: 1) encapsulation into independent data packets and dedicated allocation of network resources for transmission will bring a relatively large burden to the entire network; Cause further waste of network resources, information diffusion efficiency may not be very high
On the contrary, the cost is high, and the implementation complexity will increase sharply

Method used

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  • 802.11 beacon frame-based network node positioning information transmission method
  • 802.11 beacon frame-based network node positioning information transmission method
  • 802.11 beacon frame-based network node positioning information transmission method

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Embodiment Construction

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

[0036] A positioning information diffusion protocol based on 802.11 beacon frames. The specific content is as follows (assuming that there are N nodes in the network, [N]={1, 2, ..., N}, representing a set):

[0037] In the first step, each node encapsulates the positioning information into the reserved elements of the beacon frame. Taking the nth node as an example, its beacon frame includes the following information:

[0038] 1) Time T when node n sends a beacon frame n ;

[0039] 2) The time T of the beacon frame sent by other nodes recorded locally by node n m (m≠n);

[0040] 3) The time R at which any node receives the beacon frame is recorded locally by node n ij (i∈[N]and j≠i), this symbol indicates the time when node i receives the beacon frame sent by node j;

[0041]4) The local record of node n, the anchor point labe...

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Abstract

The invention discloses a method for transmitting network node positioning information based on 802.11 beacon frames, which is based on positioning information diffusion of 802.11 beacon frames and utilizes reserved information elements of the beacon frames as carriers. The method has the additional two advantages that when the network scale is small, only broadcasting is needed, routing is not needed, an OLSR data packet does not serve as a carrier, a beacon frame is necessary for networking and always exists, and at the moment, bits can be supplemented; And secondly, the sending period of the beacon frame is far shorter than that of an OLSR data packet, so that the positioning information is diffused more quickly, and the time-varying network condition can be better coped with.

Description

technical field [0001] The invention relates to a transmission method (protocol) of network node positioning information, in particular to a transmission method (protocol) of network node positioning information based on an 802.11 beacon frame (Beacon frame), and belongs to the technical field of network positioning information dissemination. Background technique [0002] Network positioning is a key technology in wireless sensor networks, UAV networks, and wireless ad hoc networks. There are various network positioning algorithms, some based on Received Signal Strength (RSS), some based on Time of Arrival (TOA), some based on Angle of Arrival (AOA), and so on. Obviously, network positioning is inseparable from various positioning information, so the collection and diffusion of network positioning information in the network is the premise of completing network positioning. [0003] The most simple and direct method is: independently encapsulate these positioning information...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W64/00
Inventor 余宏伟蒋轶李峰杰孙建宇庞井明
Owner JIANGSU ZHONGLI ELECTRONICS INFORMATION TECH CO LTD
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