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LTP protocol parameter optimization configuration method of deep space communication network

A deep space communication and protocol parameter technology, applied in transmission systems, electrical components, etc., can solve problems such as lack of generality and lack of theoretical work, and achieve high precision, improve data transmission performance, and improve the effect of LTP protocol transmission performance.

Pending Publication Date: 2022-06-28
NAT SPACE SCI CENT CAS
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Problems solved by technology

Such research conclusions are not applicable to complex deep space communication networks in multi-hop scenarios, and due to the lack of theoretical work, the optimization methods proposed by existing studies are not general

Method used

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  • LTP protocol parameter optimization configuration method of deep space communication network
  • LTP protocol parameter optimization configuration method of deep space communication network
  • LTP protocol parameter optimization configuration method of deep space communication network

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Embodiment 1

[0091] like figure 1 As shown, Embodiment 1 of the present invention proposes an optimal configuration method for LTP protocol parameters of a deep space communication network.

[0092] 1. Establish a theoretical model of LTP file delivery delay for complex deep space communication networks

[0093] The theoretical model of LTP file delivery delay can be expressed as:

[0094] T file_multihop =T former +T block_q_final +T latter +T aggre (1)

[0095] In the formula, T file_multihop Indicates the LTP file delivery time in complex scenarios; T former Indicates that from the time the file is transmitted at the source node, to the block q_final The time consumed until the qth hop starts transmission, the qth hop is the one with the longest one-way delay, block q_final is the block that finally completed the transmission on the qth hop; T block_q_final means block q_final Transmission delay on the qth hop; T latter means from block q_final The time taken from the com...

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Abstract

The invention discloses an LTP protocol parameter optimization configuration method of a deep space communication network, which is used for a complex deep space communication network in a multi-hop scene, and comprises the following steps: establishing an LTP file transfer total time delay theoretical model of the complex deep space communication network according to a communication environment; based on an LTP file transfer total time delay model, a parameter optimization design algorithm LTP-PODA of the LTP is provided; the parameters of segment, block and session in the LTP protocol are optimized through an LTP-PODA algorithm, a global optimal solution combination of the three parameters is obtained, and therefore the optimal parameter configuration scheme of the LTP protocol is obtained. Compared with the existing model established based on a simplified scene, the precision of the established LTP transmission time delay model of the complex deep space communication network is higher; according to the method, reasonable LTP protocol parameters are configured for the DTN-based complex deep space communication network, and the LTP protocol transmission performance in a complex scene is improved.

Description

technical field [0001] The invention belongs to the technical field of LTP protocol parameter configuration, and in particular relates to an LTP protocol parameter optimization configuration method of a deep space communication network. Background technique [0002] LTP (Licklider Transmission Protocol, LTP) is a DTN (Delay / Disruption Torlrant Network, DTN) protocol designed for point-to-point connections with extremely long propagation delays and interruptions. It is the main transmission of DTN-based deep space communication networks. protocol. [0003] Since the different selection of protocol parameters will have a great impact on the LTP transmission performance, before performing the data transmission task with LTP as the transport layer protocol, it is necessary to configure the LTP protocol parameters. Relevant standard publications. In order to make the deep space communication network using LTP as the transmission protocol to obtain the highest possible performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L41/0823H04L41/14H04L67/06H04L67/306
CPCH04L67/06H04L67/306H04L41/0823H04L41/145
Inventor 余果董振兴朱岩
Owner NAT SPACE SCI CENT CAS
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