Encoding method, encoding device, decoding method and decoding device

A coding method and coding technology, applied in coding, coding components, error detection coding using multi-bit parity check bits, etc., can solve the problem that coding technology cannot achieve the security of information theory meaning, and achieve the effect of secure coding and decoding

Active Publication Date: 2017-10-24
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present invention provides an encoding method and device, and a decoding method and device to at least solve the problem that the encoding technology in the related art cannot achieve the security of the information theory meaning

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  • Encoding method, encoding device, decoding method and decoding device
  • Encoding method, encoding device, decoding method and decoding device
  • Encoding method, encoding device, decoding method and decoding device

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Embodiment Construction

[0053] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0054] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

[0055] In this embodiment, an encoding method is provided, figure 1 is a flowchart of an encoding method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0056] Step S102, obtaining a message to be sent, wherein the message to be sent includes: a real message of k bits, a random message of (1-k) bits, wherein l and k are both natural numbers;

[0057] Step S104, encode the me...

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Abstract

Provided is an encoding method, an encoding device, a decoding method and a decoding device. The encoding method comprises steps: a to-be-sent message is acquired, wherein the to-be-sent message comprises a real message of k bits and a random message of (l-k) bits, and both l and k are natural numbers; the to-be-sent message is encoded according to a check matrix H, a codeword r<n+k> is acquired, wherein n is a codeword length of the real message, and the check matrix H satisfies the following condition: r<n+k> H<T> = 0; and the codeword r<n+k> is sent. By adopting the above technical scheme, the problem that the encoding technology can not achieve information theory meaning safety can be solved and safety encoding and decoding are realized.

Description

technical field [0001] The present invention relates to the communication field, in particular, to an encoding method and device, and a decoding method and device. Background technique [0002] In related technologies, although Shannon's theorem defined the performance of channel coding as early as 1984, most channel coding algorithms were far below Shannon's limit until Turbo codes appeared in 1993. Therefore, the birth of Turbo codes means the beginning of channel coding approaching the Shannon limit in additive Gaussian white noise channels. Two years later, Mike Mackay and Neal Neal were inspired by Turbo codes to rediscover that the Low Density Parity Check code (LDPC for short), which has been neglected for a long time, has a value closer to the Shannon limit. performance. The LDPC code was proposed by Gallager in 1962. The code he proposed is a linear block code based on a sparse parity check matrix. Gallager elaborated the construction method of LDPC code, iterati...

Claims

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Application Information

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IPC IPC(8): H03M13/11
CPCH03M13/1148H03M13/11Y02D30/70
Inventor 胡婧婷
Owner ZTE CORP
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