• Title/Summary/Keyword: Content Centric Network(CCN)

Search Result 53, Processing Time 0.03 seconds

Method to Limit The Spread of Data in Wireless Content-Centric Network (무선 Content-Centric Network에서 Data 확산 제한 방법)

  • Park, Chan-Min;Kim, Byung-Seo
    • IEMEK Journal of Embedded Systems and Applications
    • /
    • v.11 no.1
    • /
    • pp.9-14
    • /
    • 2016
  • Since Devices such labtop, tablet, smartphone have been developed, a lots of huge data that can be classified as content is flooded in the network. According to changing Internet usage, Content-Centric Network(CCN) what is new concept of Internet Architecture is appeared. Initially, CCN is studied on wired network. but recently, CCN is also studied on wireless network. Since a characteristic of wireless environment is different from a characteristic of wired environment, There are issues in wireless CCN. In this paper, we discuss improvement method of Data spread issue on wireless CCN. The proposed scheme of this paper use MAC Address of nodes when Interest and Data Packet are forwarded. As using the proposed scheme, we reduce the spread of Data and offer priority of forwarding to nodes of shortest path, reduce delay by modifying retransmission waiting time.

Provider's Mobility Supporting Proactive Neighbor Pushing Scheme in CCN (CCN에서 정보제공자의 이동성 지원을 위한 푸싱 기법)

  • Woo, Taehee;Kwon, Taewook
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.19 no.6
    • /
    • pp.721-729
    • /
    • 2016
  • CCN(Content-Centric Network) enables users to retrieve content using the content's name. Researchers face critical challenges in terms of mobility. Since the routing information is part of the content name, when the provider moves, it is necessary to update all the routers routing information. However, this requires significant costs. In this paper, we propose PNPCCN(Proactive Neighbor Pushing CCN), considering the popularity and rarity of mobility support, for providers in CCN environments. Via simulation studies, we demonstrate that our solutions are effective in terms of shorter numbers of retransmitted Interest packets, and average download times and higher delivery ratios during mobility.

Route Optimization Scheme for Mobile Content Sources in Content Centric Networking

  • Lee, Jihoon;Rhee, Eugene
    • Journal of information and communication convergence engineering
    • /
    • v.18 no.1
    • /
    • pp.22-27
    • /
    • 2020
  • Content centric networking (CCN) is regarded as promising internet architecture because it can provide network efficiency in terms of bandwidth consumption by separating contents from a specific network location and decrease network congestion events. However, the application of a CCN does not widely consider the side effects of mobile devices, particularly mobile content sources. For content source mobility, a full routing update is required. Therefore, in this study, a route optimization scheme is proposed for mobile content sources in a CCN environment to provide low communication overhead, short download time, and low resource consumption. The proposed scheme establishes a direct path between content requesters and a mobile content source for the exchange of interest and data packets using interest-piggybacked data packets. Based on the inherent CCN naming characteristics, the content source does not know the name prefix of the content consumer, and thus the proposed optimized CCN scheme utilizes the content router in the home domain of the content source.

Research on Efficiency of Interest-Data Handshaking in Wireless Content-Centric Networks (무선 Content-Centric Network에서의 Interest-Data Handshaking의 효율성에 대한 연구)

  • Lee, Seung-Jin;Park, Chan-Min;Kim, Byung-Seo
    • The Journal of the Institute of Internet, Broadcasting and Communication
    • /
    • v.14 no.2
    • /
    • pp.81-86
    • /
    • 2014
  • Content Centric Network (CCN) is one of candidate technologies for the future Information Centric Networks. Recently, adopting CCN concept to wireless networks has extensively been studied. One of the well-known studies is Enhanced-Content-centric multiHop wireless NETwork (E-CHANET), which proposes efficient methods to deliver contents adopting CCN concept over wireless environment. In E-CHANET, in order for a provider to send a data packet, one interest packet from a consumer is required. In this paper, efficiency of data-interest handshaking in E-CHANET has been investigated. It is compared with a method using only one interest packet for all data packets through simulations. As results, while the handshaking provides transmission reliability, it increses content down load time too much.

Efficient Content Delivery Method in Wireless Content-Centric Network (무선 Content-Centric Network에서 효과적인 콘텐츠 전달 방식)

  • Park, Chan-Min;Kim, Byung-Seo
    • Journal of Internet Computing and Services
    • /
    • v.18 no.2
    • /
    • pp.13-20
    • /
    • 2017
  • Recently, researches to adopt Content-centric network (CCN), which is one of the promising technologies for replacing TCP/IP-based networks, to wireless networks has actively performed. However, because of erroneous and unreliable channel characteristics, there are many problems to be resolved to adopt CCN to wireless networks. This paper proposes a method to reduce content download time because nodes possess only parts of content chunks. The proposed method enables a node having parts of content chunks to request the rest of parts of content chunks to a provider before a Consumer requests the content. As a consequence, the content download time is reduced.

A Real-time Content Popularity-Based Cache Policy in Content Centric Network (CCN에서 실시간 콘텐츠 인기도 기반 캐시 정책)

  • Min-Keun Seo;Tae-Wook Kwon
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.18 no.6
    • /
    • pp.1095-1102
    • /
    • 2023
  • Content Centric Network (CCN) is a network that emerged to improve the existing network structure and communicates based on content names instead of addresses. It utilises caches to distribute traffic and reduce response time by delivering content from intermediate nodes. In this paper, we propose a popularity-based caching policy to efficiently utilise the limited CS space in CCN environment. The performance of CCNs can vary significantly depending on which content is prioritised to be stored and released. To achieve the most efficient cache replacement, we propose a real-time content popularity-based efficient cache replacement policy that calculates and prioritises content popularity based on constructor popularity, constructor distance, and content hits, and demonstrate the effectiveness of the new policy through experiments.

A LFU based on Real-time Producer Popularity in Concent Centric Networks (CCN에서 실시간 생성자 인기도 기반의 LFU 정책)

  • Choi, Jong-Hyun;Kwon, Tea-Wook
    • The Journal of the Korea institute of electronic communication sciences
    • /
    • v.16 no.6
    • /
    • pp.1113-1120
    • /
    • 2021
  • Content Central Network (CCN) appeared to improve network efficiency by transforming IP-based network into content name-based network structures. Each router performs caching mechanism to improve network efficiency in the CCN. And the cache replacement policy applied to the CCN router is an important factor that determines the overall performance of the CCN. Therefore various studies has been done relating to cache replacement policy of the CCN. In this paper, we proposed a cache replacement policy that improves the limitations of the LFU policy. The proposal algorithm applies real-time producer popularity-based variables. And through experiments, we proved that the proposed policy shows a better cache hit ratio than existing policies.

Strengthening Authentication Through Content Centric Networking

  • Kim, Sung-Jin;Park, Jae-Kyung
    • Journal of the Korea Society of Computer and Information
    • /
    • v.22 no.4
    • /
    • pp.75-82
    • /
    • 2017
  • While the internet has evolved in terms of information sharing and efficiency, it is still prone to security attacks and remains vulnerable even when equipped with a security mechanism. Repeated patching against hacks involves excessive wear of system equipment and high costs. Methods of improving network security include the introduction of security equipment and network partitions, but they have not been fully effective. A fundamental solution is the Operation Content Network (OCN), which enables the strengthening of authentication. In this paper, Instead of following the existing TCP/IP system, OCN establishes an immunity-based security system through content-centric communications. Data transmission occurs over a Content Centric Network (CCN), which is provided with a protocol verified by the CCNx group. Areas protected by OCN rely only on CCN for communication without using any IP. As such, it defends the system against unknown attacks, including zero-day attacks.

Content Centric Networking Naming Scheme for Efficient Data Sharing (효율적인 데이타 교환을 위한 Content-Centric Networking 식별자 방안)

  • Kim, Dae-Youb
    • Journal of Korea Multimedia Society
    • /
    • v.15 no.9
    • /
    • pp.1126-1132
    • /
    • 2012
  • To enhance network efficiency, CCN allow intermediate network nodes between a content consumer and a content publisher to temporarily cache transmitted contents. Then the network nodes immediately return back the cached contents to another consumers when the nodes receives relevant contents request messages from the consumers. For that, CCN utilizes hierarchical content names to forward a request message as well as a response message. However, such content names semantically contain much information about domain/user as well as content itself. So it is possible to invade users' privacy. In this paper, we first review both the problem of CCN name in the view point of privacy and proposed schemes. Then we propose an improved name management scheme for users' privacy preservation.

Secure Routing Scheme in CCN-Based Mobile Ad-Hoc Networking Environments (CCN 기반 이동 애드혹 환경에서의 안전한 라우팅 방안)

  • Lee, Ju-Yong;Lee, Ji-Hoon
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.39B no.5
    • /
    • pp.304-308
    • /
    • 2014
  • As users generate lots of contents anytime and anywhere with an explosive growth of the number of mobile devices, Content centric networking (CCN) has emerged as a new networking architecture. However, the efficient CCN routing scheme is required for ad hoc network support because of its one to one message exchange characteristics. So, this paper proposes the new CCN ad hoc routing scheme using on-demand approach, which includes the secure routing configuration scheme based on multiple hash operation. It is shown from the simulation that the proposed method can provide lower control overhead because of its two-fold routing configuration architecture.