Centralized caching decision strategy in content-centric networking

A content-centric network and decision-making strategy technology, applied in the content-centric network, one of the new network architectures, in the field of content-centric networks, can solve problems such as unbalanced requests, improve cache resource utilization, reduce request delays, and improve network performance. Effect

Active Publication Date: 2016-06-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] [Purpose of the invention]: In order to more efficiently utilize cache resources and solve the problem of unbalanced requests in different regions, the present invention proposes a cache system framework and cache algorithm for centralized computing cache decision-making

Method used

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  • Centralized caching decision strategy in content-centric networking
  • Centralized caching decision strategy in content-centric networking
  • Centralized caching decision strategy in content-centric networking

Examples

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Embodiment Construction

[0046] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.

[0047] Such as figure 2 , there is a content source (server) containing all content in the network, there are 3 routers A, B, C, they have the same cache capacity C a =C b =C c =2. While these three routers are requesting content on behalf of local users, router A also forwards cache miss forwarding requests from B and C. The content set is F={f 1 , f 2 , f 3 ,..., f 7 , f 8}. The routers count the probability of their respective request content (here expressed by the number of times). A is B for C is

[0048] Step 1. The router transmits these statistical data to the controller.

[0049] Step 2. The controller uses all the collected router statistical information and network topology information to perform calculations to obtain the buffer contents of each router when the network traffic is minimum.

[0050] Step 3. The cont...

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Abstract

Content-centric networking is one solution of an information-centric networking thought. The invention discloses a centralized caching decision strategy in the content-centric networking. Under the architecture of the content-centric networking, researches of basic functions, such as data naming, content forwarding and intranet caching of information-centric networking, are realized by utilizing the existing framework adopting a SDN; the centralized caching decision strategy is provided; a centralized controller is placed in the content-centric networking; the controller generates one caching list for each node by collecting all node request information, and deterministically guides each node to cache contents; therefore, the transmission flow in the network is minimized; and the user request delay is reduced.

Description

technical field [0001] The invention belongs to the content-centric network field, one of the novel network architectures. In particular, it concerns the caching decision problem of caching systems in the field of content-centric networking. Background technique [0002] In today's information society, the Internet plays a vital role in our lives. The unprecedented success of the Internet has changed and will continue to change people's way of life, including information delivery, work, business and military operations. There is no doubt that all walks of life have benefited from the application of the Internet. However, with the changes in network usage patterns and the popularization of industrial control networks, Internet of Things, Internet of Vehicles, and cloud computing technologies, the traditional network architecture has exposed many problems, such as security, scalability, mobility, and physical address-based Redundant transmission, etc. [0003] According to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/5682H04L67/568
Inventor 陈兵申慕惠钱红燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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