NDN (Named Data Networking) framework based wireless data transmission method, device and system

A wireless data transmission and data technology, applied in the field of communication, can solve problems such as inability to distinguish broadcast data, multicast data and unicast data, affect NDN applications, and lack of key technologies, so as to improve resource utilization and avoid energy consumption Waste, the effect of improving data transmission efficiency

Active Publication Date: 2018-04-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current NDN protocol and network applications are mainly aimed at the wired environment, and there are few studies in the wireless environment, and the lack of key technologies seriously affects the application of NDN in wireless networks.
[0004] Because NDN routes and forwards data through the naming mechanism, in the wireless NDN environment, if the destination address is not known, the current NDN transmits data in the form of broadcast in the wireless environment, which will cause the terminal to receive data that does not belong to it. Cannot distinguish between broadcast data, multicast data and unicast data; and will cause all terminals to be awake, leading to severe energy consumption challenges

Method used

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  • NDN (Named Data Networking) framework based wireless data transmission method, device and system

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Embodiment 1

[0025] In order to solve the problem that wireless NDN cannot efficiently transmit data, this embodiment proposes a wireless data transmission method based on NDN architecture. First, a MAC address is added to the extended attribute of the PIT table, indicating which MAC address the prefix of the Interest request is sent from, and at the same time. Add the MAC address attribute to the forwarding interface corresponding to the FIB table. Therefore, in the wireless NDN environment, the data type can be judged by the number of MAC addresses corresponding to the prefix of the returned data. If the Interest request entry corresponds to multiple MAC addresses, it means that the data is multicast data; if The Interest entry corresponds to only one MAC address, indicating that the data is unicast data. Broadcast data is only a special case of multicast data, that is, the data corresponds to all MAC addresses. For example, the distribution of Beacon frame data is transmitted through br...

Embodiment 2

[0040] This embodiment discloses a wireless data transmission system and device based on an NDN architecture, so as to perform the corresponding steps in the foregoing method embodiments. Specifically include:

[0041] A wireless data transmission system based on an NDN architecture, including a STA and an AP, the STA and the AP are each provided with a memory, a processor, and a computer program stored in the memory and run on the processor, wherein the The steps of the above method are implemented when the STA and the AP cooperate to execute their corresponding computer programs.

[0042] An STA is provided with a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps corresponding to the STA in the above method when the processor executes the computer program.

[0043] An AP is provided with a memory, a processor, and a computer program stored in the memory and executable on the processor...

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PUM

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Abstract

The invention relates to the technical field of communication, and discloses an NDN (Named Data Networking) framework based wireless data transmission method, device and system for enriching diversityand accuracy of data transmission, improving the wireless NDN data transmission efficiency and increasing the resource utilization rate. The NDN framework based wireless data transmission method comprises the steps of firstly adding MAC addresses to an expansion attribute of a PIT (Pending Interest Table) to indicate which MAC address sends out the prefix of an Interest request; and adding MAC address attributes to a forwarding interface corresponding to the FIB (Forwarding Information Base) table. Therefore, in a wireless NDN environment, the data type can be judged based on the number of the MAC addresses corresponding to the prefixes of returned data; if an Interest request entry corresponds to multiple MAC addresses, the data are indicated as multicast data; and if the Interest entryonly corresponds to one MAC address, the data are indicated as unicast data.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a method, device and system for wireless data transmission based on an NDN architecture. Background technique [0002] With the rapid development of mobile wireless networks and the popularization of portable mobile devices, people's demands on wireless networks are not only satisfied with end-to-end communication. At present, the information-centric communication mode has developed rapidly. Named Data Networking (NDN), as a revolutionary future Internet architecture, replaces IP with named data, and routes directly with content names. Publish-request-response mode to achieve efficient point-to-multipoint content distribution. Different from traditional IP networks by improving the quality of end-to-end communication links to reduce communication delays and communication interruptions, the communication mode of named data networks focuses more on how to get...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/761H04W40/02H04W52/02H04L45/74H04L45/16
CPCH04L45/16H04L45/74H04W40/02H04W52/0209Y02D30/70
Inventor 阳旺吴帆
Owner CENT SOUTH UNIV
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