An Adaptive Pipeline Transmission Method Suitable for Physical Layer Rateless Coding Transmission

Abstract

The invention discloses a self-adaptive assembly line transmission method suitable for physical layer rateless code transmission. A sending end firstly conducts rateless encoding on a data packet to generate enough encoding packets, and then the encoding packets are cut into multiple encoding packet blocks which are packaged into sub-frames; each time when sub-frames of a new data packet are sent, rateless encoding and sub-frame packaging are conducted on the next data packet, a channel is detected, and the ACK of the last data packet is received; a receiving end conducts rateless decoding on a data packet i-1 when receiving sub-frames of a data packet N; if decoding is successfully conducted on the data packet i-1 when sub-frames of a data packet i are received, decoding of the data packet i is instantly started once the number of the received sub-frames of the data packet i exceeds the threshold value for starting decoding, and the ACK of the data packet i-1 is sent after all the sub-frames of the data packet are received.

Description

technical field [0001] The invention relates to channel coding and transmission technology in the communication field, in particular to an adaptive pipeline transmission method suitable for rateless coding transmission of the physical layer. Background technique [0002] The basic purpose of a communication system is to efficiently, reliably and safely transmit information from a source to a destination. The noise in the disturbed communication channel will inevitably produce different degrees of interference to the transmitted information, which may reduce the communication reliability. Therefore, the core issue of communication system design is how to overcome interference in channels with random noise, reduce the error of information transmission, and at the same time ensure the efficiency of information transmission. In order to overcome the interference of various noises in the channel, a method of error correction coding is proposed to achieve reliable transmission. ...

AI Technical Summary

Problems solved by technology

When the estimated channel parameter is greater than the actual channel parameter, although reliable transmission can be achieved, it causes a waste of transmission, because at this time a higher bit rate channel error correction coding can be used; when the estimated channel parameter is less than the actual channel parameter When , reliable transmission cannot be achieved, and channel error correction coding with a lower code rate is required at this time

And in many cases, the channel is still changing at any time or cannot be judged in advance. At this time, these traditional codes are difficult to cope with.

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