6 results about "Technology communication" patented technology

The invention discloses a WiFi-to-ZigBee cross-technology communication method based on a neural network, and relates to the technical field of cross-technology communication. According to the WiFi-to-ZigBee cross-technology communication method based on the neural network, a wireless signal processing assembly in a CTC processing flow is converted into a neural model, a neural network model of a structure from a WiFi transmitter end to a ZigBee receiver end is formed, a data set label is not needed, an optimal CTC load can be automatically deduced, the development complexity is effectively simplified, and the development efficiency is improved. Compared with the prior art, the method has good expandability, the average data packet receiving rate is 92.3%, the average symbol error rate is as low as 1.3%, and the method has relatively excellent error performance for WE-Bee and WIDE.

The invention discloses an attack and detection method for cross-protocol communication, and the method comprises the steps: building a monitoring and detection model based on a decision tree model, taking the phase, amplitude and frequency spectrum components of each subcarrier of channel state data collected in real time as the input of the model, and taking the classification of cross-technical interference traffic and normal traffic as the output; time sequence modeling and congestion judgment are carried out based on a Transform model, a DQN network is introduced based on an MPC framework, a congestion attack defense model is constructed, a system state vector is used as the input of the model, and a selected optimal defense action is used as the output; according to the method, the DQN method is introduced to assist the rolling optimization problem of the MPC framework, so that the system can utilize the prediction and constraint processing capability of the MPC and can also utilize the rapid value estimation of the DQN in a large-scale state-action space, finally, the defense decision is efficiently completed in each time slot, and the calculation cost of attack and detection in a cross-technology communication system is reduced.

The application relates to a ZigBee-to-Lora cross-technology communication method based on a physical layer, wherein first, a ZigBee terminal encodes target data to be sent to obtain encoded data composed of one of binary numbers 0 or 1, and the encoded data is mapped to form a wireless data transmission signal for sending; then a Lora receiver identifies valid ZigBee data from the received wireless data transmission signal, further obtains corresponding encoded data through identification of a corresponding Fourier spectrum diagram; finally, the Lora receiver decodes and identifies the obtained encoded data according to the encoding rule of the ZigBee terminal, and obtains target data from the ZigBee terminal; the design method completes long-distance communication from the ZigBee terminal to the Lora receiver without the aid of an additional gateway, realizes efficient cross-technology communication, saves the hardware cost in an Internet of Things system, and improves the deployment speed of an Internet of Things data acquisition system.

The application provides a power distribution method and device for heterogeneous network communication, a storage medium and equipment. The heterogeneous network comprises a base station, an eavesdropping user, a D2D communication user and a cellular communication user. The power distribution method comprises the following steps: acquiring a channel fading index between the base station, the eavesdropping user, the D2D communication user and the cellular communication user, a system total power of the heterogeneous network and a first error factor; inputting the channel fading index, the system total power and the first error factor into a power distribution model to obtain a power distribution coefficient; and distributing the D2D communication power and the cellular communication power of the heterogeneous network according to the power distribution coefficient. The method can detect the fraud attack or the congestion attack in the cross-technology communication with low error and high precision by using the existing resources without increasing the hardware cost, and effectively improves the stability of the cross-technology communication.

The application provides a communication method and device to reduce the redundancy of cross-technology communication, and relates to the technical field of wireless communication. In the method, a first device acquires a first frame, and the first frame includes at least two first sequences. The first frame corresponds to a first communication protocol, and the first sequence corresponds to a second communication protocol. The first device scrambles the at least two first sequences to obtain a second frame. The second frame includes at least two second sequences, and the at least two second sequences are obtained by scrambling the at least two first sequences. The first device transmits the second frame. The second frame corresponds to a first channel, the at least two second sequences correspond to one or more second channels, and the first channel corresponds to the one or more second channels. Based on the above scheme, at least two first sequences corresponding to the second communication protocol can be carried in one frame, the proportion of redundancy in the frame can be reduced compared with the CTC method in the related art, the air interface occupation is reduced, and the packet sending efficiency is improved.

The invention discloses a cross-technology communication method and system of electromagnetic radiation and LoRa Internet of Things equipment, which can actively modulate electromagnetic radiation of a VGA (Video Graphics Array) or HDMI (High Definition Multimedia Interface) video cable and control the video cable to emit a data packet which can be identified and decoded by the LoRa Internet of Things equipment by playing a picture or a video generated by an algorithm in the invention. According to the pixel stream calculation method provided by the invention, electromagnetic radiation of the video cable and the frequency of harmonic waves of the electromagnetic radiation can be accurately controlled; according to the method, electromagnetic radiation is modulated according to a data packet format specified by a LoRa Internet of Things protocol, and electromagnetic radiation conforming to a LoRa data packet waveform is transmitted on a LoRa frequency band, so that commercial LoRa equipment receives and decodes a data packet from electromagnetic radiation coding and modulation, and cross-technology communication between the electromagnetic radiation based on a video cable and LoRa Internet of Things equipment is realized. The method has the advantages of being high in data transmission rate, long in transmission distance, easy and convenient to implement and the like.