Meteor-bursting communication protocol processor base on SNR estimation

Abstract

The invention discloses a meteor burst communication protocol processor based on the estimation of signal-to-noise ratio, and relates to a meteor trail signal channel protocol processor with the strong anti-burstiness and the rapid fading resistance, and belongs to the communication field. The processor comprises a packetizer, an organization and sending device, an encoder, a sending selector, a signal channel detector, a rapid synchronizer, a decoder, a receiving and combination device, an unpacketizer, a receiving responder and a sending responder. The processor firstly estimates the signal-to-noise ratio before sending the data, and determines if the encoding and the punching is required; a receiving terminal adopts the technology of the data receiving and combination to carry out the self-decryption or the joint decryption on the received data and complete the processing of the meteor burst communication protocol. The invention also has the advantages of high integrated degree, simple circuit, small volume, convenient application and stable and reliable performance. The invention is especially suitable for the meteor trail signal channel protocol processor with the strong anti-burstiness, the rapid fading resistance and the short signal channel existence period.

Description

technical field [0001] The invention relates to a meteor burst communication protocol processor based on signal-to-noise ratio estimation in the communication field. It is especially suitable for the Meteor residual channel with strong burst and fast fading as the Meteor burst communication protocol processor device. Background technique [0002] When data is transmitted on the meteor trail channel with strong burstiness and fast fading, due to the rapid decline of the received signal-to-noise ratio, the bit error rate of the received data will change greatly, and even the data transmission will be interrupted at any time. Therefore, a certain protocol must be adopted to ensure the reliable and correct transmission of data. Because the meteor trail channel is bursty and the channel exists for a short time, only forward error correction cannot complete the correct transmission of data. However, if only the automatic repeat (ARQ) system is used, although the transmission is ...

AI Technical Summary

Problems solved by technology

Since the meteor trail channel is bursty and the channel exists for a short time, forward error correction alone cannot complete the correct transmission of data

However, if only relying on the automatic retransmission (ARQ) system, although the transmission is reliable and the implementation is simple, it is necessary to set up a reverse channel for transmitting and receiving responses. The transmission efficiency becomes very low, so a hybrid automatic retransmission (HARQ) system combining the two is required

However, the frame structure of the traditional hybrid automatic repeat (HARQ) system is relatively fixed, which cannot be well adapted to the meteor trail channel with strong burst and uncertain available channel time.

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