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PPCS: A Progressive Popularity-Aware Caching Scheme for Edge-Based Cache Redundancy Avoidance in Information-Centric

Quang Ngoc Nguyen1, Jiang Liu2, Zhenni Pan3

  • 1Department of Communications and Computer Engineering, Faculty of Science and Engineering, Waseda University, Shinjuku-ku, Tokyo 169-0051, Japan. quang.nguyen@aoni.waseda.jp.

Sensors (Basel, Switzerland)
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PubMed
Summary

The Progressive Popularity-Aware Caching Scheme (PPCS) enhances Information-Centric Networking (ICN) by intelligently caching content chunks. This novel approach reduces redundancy and boosts content availability, especially with limited cache sizes.

Keywords:
Future Internet (FI)cache optimizationcache redundancycaching policiesedge computinginformation-centric networking (ICN)named-data networking (NDN)network design

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Area of Science:

  • Computer Science
  • Networking
  • Distributed Systems

Background:

  • Information-Centric Networking (ICN) faces challenges with cache redundancy and content availability.
  • Existing caching schemes often struggle with efficient utilization of limited cache space.

Purpose of the Study:

  • To propose a novel chunk-based caching scheme, the Progressive Popularity-Aware Caching Scheme (PPCS), for ICN.
  • To address cache redundancy and improve content availability in ICN networks.
  • To optimize cache utilization through an autonomous replacement policy.

Main Methods:

  • PPCS employs a hybrid caching strategy: entire-object caching for popular content and partial-progressive caching for less popular content.
  • Initial chunks are cached at edge nodes, with subsequent chunks progressively cached at upstream Content Nodes (CNs) based on popularity and position.
  • An autonomous replacement policy is introduced to maximize cache utility.

Main Results:

  • PPCS significantly outperforms existing ICN caching strategies in reducing latency (hops) and cache redundancy.
  • The scheme demonstrates improved content availability (hit rate), particularly with small CN cache sizes.
  • Edge computing is leveraged for joint optimization of caching and replacement decisions.

Conclusions:

  • PPCS offers an efficient solution for ICN caching by intelligently managing content chunks.
  • The proposed scheme effectively balances cache space utilization and content retrieval performance.
  • PPCS represents a significant advancement in developing comprehensive ICN caching solutions.