Data transmission method and system based on bit operation and layered enumeration spherical surface shaping
A data transmission method and a bit manipulation technology, which are applied in the field of data transmission methods and systems based on bit manipulation and hierarchical enumeration spherical shaping, can solve problems such as energy consumption and calculation speed need to be improved, and achieve improved anti-noise performance, high performance and high efficiency. The effect of calculating speed and increasing the probability of launching
Active Publication Date: 2022-02-11
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
Energy consumption and computational speed of current probabilistic shaping methods need to be improved
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[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0081] The purpose of the present invention is to provide a data transmission method and system based on bit manipulation and layered enumeration spherical shaping, which reduces energy consumption and improves transmission efficiency.
[0082] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and ...
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The invention relates to a data transmission method and system based on bit operation and layered enumeration spherical shaping. The method comprises the steps of: carrying out bit operation on an original information sequence according to a chaotic sequence, and obtaining a first bit sequence; on the basis of preset mapping parameters, indexing the first bit sequence to intra-layer indexes of each layer of spherical constellation points according to an energy sequence through layered enumeration spherical shaping mapping, and outputting an amplitude sequence corresponding to the constellation points through an enumeration method, and defining the amplitude sequence as a first amplitude sequence; inputting the first amplitude sequence into a channel; defining amplitude sequences output from the channel as second amplitude sequences, and based on the preset mapping parameters, according to the second amplitude sequences, determining the energy of each second amplitude sequence, the number of spherical layers where the second amplitude sequences are located and the intra-layer indexes; converting the intra-layer indexes into binary sequences and connecting the binary sequences to obtain a second bit sequence; and performing corresponding bit operation on the second bit sequence based on the chaotic sequence to obtain an original information sequence. According to the method and system of the invention, the energy consumption is reduced, and the transmission efficiency is improved.
Description
technical field [0001] The invention relates to the field of optical transmission technology, in particular to a data transmission method and system based on bit manipulation and layered enumeration spherical shaping. Background technique [0002] The development of many multimedia technologies has brought huge traffic, prompting the emergence of Passive Optical Network (PON). A large number of deployments of optical access networks and a sharp increase in the number of users around the world have proved its huge development potential. However, the further growth of business volume puts forward more stringent requirements on the speed and capacity of the communication system. How to approach the Shannon limit in a more systematic way has become a concern of scholars. [0003] In this context, probabilistic shaping emerged on the stage of history as a simple and effective method. At present, there are two basic paradigms in the mainstream probability shaping methods. One is...
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Login to View More IPC IPC(8): H04L27/00H04L27/34H04J14/02
CPCH04L27/001H04L27/3405H04J14/0221Y02D30/70
Inventor 刘博李语田忻向军田凤张琦田清华王拥军姜蕾任建新
Owner BEIJING UNIV OF POSTS & TELECOMM