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Message transmission method in DTN network, node and storage medium

A message transmission and message technology, applied in the field of network communication, can solve the problem of inability to take into account the message delivery rate and cache resource utilization efficiency, and achieve the effect of taking into account the cache resource utilization efficiency, ensuring the message delivery rate, and taking into account the message delivery rate and

Active Publication Date: 2020-07-31
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a message transmission method, node and storage medium in a DTN network, which is used to solve the problem that the message transmission method in the existing DTN network cannot take into account both the message delivery rate and the utilization efficiency of cache resources

Method used

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  • Message transmission method in DTN network, node and storage medium
  • Message transmission method in DTN network, node and storage medium
  • Message transmission method in DTN network, node and storage medium

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Embodiment Construction

[0041] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...

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Abstract

The invention provides a message transmission method in a DTN network, a node and a storage medium. The method comprises the following steps: acquiring the transmission priority of a receiving node and the transmission priority of a sending node; if the transmission priority of the receiving node is higher than or equal to the transmission priority of the sending node, sending the message copy tobe transmitted to the receiving node, and storing the message copy in a cache of the sending node at a first storage priority; receiving feedback information sent by the receiving node; and if the feedback information is used for indicating that the message copy is stored in the cache of the receiving node at the first storage priority, the message copy is stored in the cache of the sending node at the second storage priority, and the first storage priority is higher than the second storage priority. According to the method, the message copies are selectively forwarded according to the node transmission priorities, differentiated storage is provided according to the importance degree of the message copies at each node, and the utilization efficiency of cache resources is improved while themessage submission rate is ensured.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a message transmission method, node and storage medium in a delay-tolerant network (Delay-Tolerant Network, DTN). Background technique [0002] In a DTN network, nodes are characterized by sparse distribution, frequent movement, intermittent connections, and limited energy and buffer resources, so it is difficult to establish a stable end-to-end transmission path. The message transmission in the DTN network mainly adopts the store-carry-forward mechanism, and the message is transmitted to the destination node through the relay node. [0003] In the case of sufficient resources, the message delivery rate in DTN network increases with the increase of message redundancy. Therefore, the store-and-forward process in the DTN network can adopt the Epidemic algorithm. Each node in the DTN network continuously copies and transmits the message it carries to the nodes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/803H04L12/835H04L12/851H04L47/30
CPCH04L47/125H04L47/24H04L47/30Y02D30/70
Inventor 雷凯李渝
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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