Peer-Assisted Information-Centric Network (PICN): A Backward Compatible Solution

Zeinab Zali, Ehsan Aslanian, Mohammad Hossein Manshaei, Massoud Reza Hashemi, Thierry Turletti

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Information-centric networking (ICN) is a promising solution for most of Internet applications where the content represents the core of the application. However, the proposed solutions for the ICN architecture are associated with many complexities including pervasive caching in the Internet and incompatibility with legacy IP networks, so the deployment of ICN in real networks is still an open problem. In this paper, we propose a backward-compatible ICN architecture to address the caching issue in particular. The key idea is implementing edge caching in ICN, using a coalition of end clients and edge servers. Our solution can be deployed in IP networks with HTTP requests. We performed a trace-driven simulation for analyzing peer-assisted information-centric networking (PICN) benefits using IRCache and Berkeley trace files. The results show that on average, PICN decreases the latency for 78% and increases the content retrieval speed for 69% compared with a direct download from the original Web servers. When comparing PICN with a solution based on central proxy servers, we show that the hit ratio obtained using a small cache size in each PICN client is almost 14% higher than the hit ratio obtained with a central proxy server using an unlimited cache storage.

Original languageEnglish (US)
Article number8100706
Pages (from-to)25005-25020
Number of pages16
JournalIEEE Access
StatePublished - Nov 7 2017
Externally publishedYes


  • Information centric network
  • caching
  • peer-to-peer

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering


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