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Network communication method based on distributed batch sparse codes

A network communication and sparse code technology, applied in the field of electronic information and network communication, can solve the problems of long calculation time, large search space, NP difficulty, etc., and achieve the effect of improving the network communication rate and network communication quality, and reducing the search space.

Pending Publication Date: 2022-03-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0005] The design focus of the BATS inner code is to maximize the rank of the expected batch transfer matrix through the total number of data packets transmitted by the source node and the intermediate node, that is, the choice of inner code encoding parameters needs to obtain global information (including global routing information and packet loss rate), and the problem of determining the encoding parameters of the inner code is a nonlinear integer programming (NLIP) problem, which is NP-hard in general, the search space of this problem is large, and the calculation takes a long time

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  • Network communication method based on distributed batch sparse codes
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  • Network communication method based on distributed batch sparse codes

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[0031] 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.

[0032] The BATS code is composed of an outer code and an inner code. Assume that the source node needs to send K data packets to the destination node through the wireless network, and each symbol in the data packet is a finite field F containing q elements q elements in . Let the integer M≥1 be the number of batches. The outer code encoding can generate a batch sequence X according to the following rules i , i=1,2...,X i =B i G i , where B i represented ...

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Abstract

The invention discloses a network communication method based on a distributed batch sparse code, which adopts a distributed batch sparse code coding method, when an inner code coding parameter is selected, global information of a link does not need to be obtained, and only link information and path length information are used, so that the search space of an NLIP problem is effectively reduced, and the search efficiency is improved. The network communication rate and the network communication quality are improved.

Description

technical field [0001] The invention relates to the technical field of electronic information and network communication, in particular to a network communication method based on distributed batch sparse codes. Background technique [0002] Traditional network communication protocols, such as TCP / IP, are based on a layered network structure, in which the physical layer provides reliable communication for each hop. When a packet in the physical layer cannot be decoded correctly, the packet is deleted or discarded according to Package processing. In the prior art, due to limitations in actual network communication, such as buffer size limitations, encoding of limited data blocks in the physical layer cannot guarantee no packet loss, and retransmission at the link layer cannot completely eliminate packet loss. [0003] Network coding is proposed based on the purpose of improving end-to-end throughput, in which intermediate nodes can generate and send new packets instead of just...

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0057H04L1/0009H04L1/0015
Inventor 张梦峰杜俊逸周志恒肖磊杨佩彤倪大冬伍元胜
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA