A Pipeline Transmission Method Suitable for Rateless Coding Transmission in Physical Layer

A rateless encoding and transmission method technology, applied in the field of pipeline transmission, can solve the problems of transmission waste, unable to achieve reliable transmission, and difficult to cope with encoding, and achieve the effect of high throughput efficiency.

Inactive Publication Date: 2017-03-01
ZHEJIANG UNIV
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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.

Method used

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  • A Pipeline Transmission Method Suitable for Rateless Coding Transmission in Physical Layer
  • A Pipeline Transmission Method Suitable for Rateless Coding Transmission in Physical Layer
  • A Pipeline Transmission Method Suitable for Rateless Coding Transmission in Physical Layer

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Embodiment Construction

[0028] Further illustrate the present invention below in conjunction with accompanying drawing.

[0029] Such as Figure 1-4As shown, a pipeline transmission method suitable for rateless encoding transmission at the physical layer, the method is specifically: the sending end first generates encoded packets through rateless encoding of the data packets, and then splits the encoded packets into multiple encoded packet blocks and encapsulates them into subframes. When each data packet subframe is sent for the first time, multiple subframes will be sent continuously, and the next data packet will be rateless encoded and subframe encapsulated at the same time, and then enter the CS state to detect the ACK of the previous data packet. That is, after the subframe of the data packet N is sent, the channel is detected, and the ACK of the data packet N-1 is received. If the ACK of data packet N-1 is received, then the subframes of data packet N+1 are sent continuously; ACK or detect ...

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Abstract

The invention discloses a flow line transmission method suitable for physical layer rateless coding transmission. When a transmitting end sends new subframes of a data package N, the rateless coding and subframe encapsulation are carried out on a next data package N+1 at the same time. A receiving end receives the subframes of the data package N and also carries out rateless decoding on a data package N-1 at the same time. According to the flow line transmission method, the channel adaptivity of rateless codes can be well performed, channel resources are fully utilized, and high throughput efficiency is achieved.

Description

technical field [0001] The invention relates to the technical field of channel coding and transmission in the communication field, in particular to a pipeline transmission method suitable for rateless coding transmission of a 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. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/00
Inventor 张朝阳屠坤姚创沐张婧余启联杨潇翔
Owner ZHEJIANG UNIV
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