An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks
The Information-Centric Network (ICN) is one of the most influential future network architectures and in-network caching in ICN brings some helpful features, such as low latency and mobility support. How to allocate cache capacity and place content properly will greatly influence the performance of...
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doaj-b2c7f88ea9ef4a94ba23f462bcabad892020-11-25T02:45:35ZengMDPI AGElectronics2079-92922020-10-0191705170510.3390/electronics9101705An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric NetworksYuanhang Li0Jinlin Wang1Rui Han2National Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Sciences, No. 21, North Fourth Ring Road, Haidian District, Beijing 100190, ChinaNational Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Sciences, No. 21, North Fourth Ring Road, Haidian District, Beijing 100190, ChinaNational Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Sciences, No. 21, North Fourth Ring Road, Haidian District, Beijing 100190, ChinaThe Information-Centric Network (ICN) is one of the most influential future network architectures and in-network caching in ICN brings some helpful features, such as low latency and mobility support. How to allocate cache capacity and place content properly will greatly influence the performance of ICN. This paper focuses on the cache allocation problem and content placement problem under the given cache space budget. Firstly, a lightweight allocation method utilizing information of both topology and content popularity is proposed, to allocate cache space and get the expected number of copies of popular content. The expected number of copies represents the number of content copies placed in the topology. Then, an on-path caching scheme based on the expected number of copies is proposed to handle the content placement problem. In the cache allocation scenario, the lightweight allocation method performs better than other baseline methods. In the content placement scenario, Leave Copy Down (LCD) based on the expected number of copies performs the second-best and is very close to Optimal Content Placement (OCP).https://www.mdpi.com/2079-9292/9/10/1705ICNcache allocationexpected number of copiescontent placement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuanhang Li Jinlin Wang Rui Han |
spellingShingle |
Yuanhang Li Jinlin Wang Rui Han An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks Electronics ICN cache allocation expected number of copies content placement |
author_facet |
Yuanhang Li Jinlin Wang Rui Han |
author_sort |
Yuanhang Li |
title |
An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks |
title_short |
An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks |
title_full |
An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks |
title_fullStr |
An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks |
title_full_unstemmed |
An On-Path Caching Scheme Based on the Expected Number of Copies in Information-Centric Networks |
title_sort |
on-path caching scheme based on the expected number of copies in information-centric networks |
publisher |
MDPI AG |
series |
Electronics |
issn |
2079-9292 |
publishDate |
2020-10-01 |
description |
The Information-Centric Network (ICN) is one of the most influential future network architectures and in-network caching in ICN brings some helpful features, such as low latency and mobility support. How to allocate cache capacity and place content properly will greatly influence the performance of ICN. This paper focuses on the cache allocation problem and content placement problem under the given cache space budget. Firstly, a lightweight allocation method utilizing information of both topology and content popularity is proposed, to allocate cache space and get the expected number of copies of popular content. The expected number of copies represents the number of content copies placed in the topology. Then, an on-path caching scheme based on the expected number of copies is proposed to handle the content placement problem. In the cache allocation scenario, the lightweight allocation method performs better than other baseline methods. In the content placement scenario, Leave Copy Down (LCD) based on the expected number of copies performs the second-best and is very close to Optimal Content Placement (OCP). |
topic |
ICN cache allocation expected number of copies content placement |
url |
https://www.mdpi.com/2079-9292/9/10/1705 |
work_keys_str_mv |
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