A frequency hopping method and device based on quantization correlation

A correlation and frequency hopping technology, applied in the field of cognitive wireless networks, can solve problems such as high overhead

Active Publication Date: 2020-11-13
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

It can be seen that this method needs to detect each channel one by one, and it needs to switch channels one by one during detection, which results in a large overhead

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  • A frequency hopping method and device based on quantization correlation
  • A frequency hopping method and device based on quantization correlation
  • A frequency hopping method and device based on quantization correlation

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Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] The frequency hopping method based on quantization correlation provided by the embodiment of the present invention will firstly be introduced in detail below.

[0059] see figure 2 , figure 2 It is a schematic flow chart of a quantized correlation-based frequency hopping method according to an embodiment of the present invention, which is applied to a receiving end and includes the following steps:

[0060] S101, according to the received historical...

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Abstract

The embodiment of the invention provides a frequency hopping method and device based on quantitative correlation, and the method comprises the steps: building a quantitative channel correlation modelbased on the inter-channel correlation of the signal-to-interference-and-noise ratio of each channel according to the received historical information and the interference information collected at thecurrent moment; selecting an optimal channel from the quantitative channel correlation model as a target channel for communicating with the sending end; when a data packet sent by a sending end through a target channel is received, calculating the signal to interference plus noise ratio of the target channel by utilizing the data packet and the noise collected at the current moment; if the signal-to-interference ratio is less than a preset threshold, reselecting a new channel by using the Pareto model and the quantitative channel correlation model. According to the embodiment of the invention,each channel does not need to be detected one by one, but the optimal channel is selected from the quantitative channel correlation model established based on the signal to interference and noise ratio of each channel, so the reliability of communication can be improved by the selected target channel on the basis of reducing the overhead.

Description

technical field [0001] The present invention relates to the technical field of cognitive wireless networks, in particular to a quantized correlation-based frequency hopping method and device. Background technique [0002] With the rapid development of wireless network technology, an increasing number of IoT devices are widely used in systems such as smart home, smart medical care, and environmental monitoring. These IoT devices employ multiple wireless communication technologies such as WiFi, ZigBee or Bluetooth. Due to the limited radio frequency spectrum, multiple wireless communication technologies are forced to use the same unlicensed frequency bands, such as figure 1 As shown, IEEE 802.11 (WiFi), IEEE 802.15.1 (Bluetooth) and IEEE 802.15.4 (ZigBee) share the same 2.4GHz ISM (Industrial Scientific Medical) frequency band. However, due to spectrum overlap, power asymmetry, and different modulation methods, sharing the same frequency band will inevitably lead to CTI (Cro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/713H04B1/715H04B17/336H04B17/391
CPCH04B1/713H04B1/715H04B17/336H04B17/391
Inventor 郑霄龙王玉婷刘亮马华东
Owner BEIJING UNIV OF POSTS & TELECOMM
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