Framework and Algorithms for Operator-Managed Content Caching
| Autor: | George Pavlou, Lorenzo Saino, Ioannis Psaras |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Simple computation
Computer Networks and Communications Computer science Distributed computing Knowledge engineering 020206 networking & telecommunications 02 engineering and technology Load balancing (computing) Network topology Operator (computer programming) Robustness (computer science) 0202 electrical engineering electronic engineering information engineering Cache Electrical and Electronic Engineering Latency (engineering) |
| Zdroj: | IEEE Transactions on Network and Service Management. 17:562-576 |
| ISSN: | 2373-7379 |
| Popis: | We propose a complete framework targeting operator-driven content caching that can be equally applied to both ISP-operated Content Delivery Networks (CDNs) and future Information-Centric Networks (ICNs). In contrast to previous proposals in this area, our solution leverages operators’ control on cache placement and content routing, managing to considerably reduce network operating costs by minimizing the amount of transit traffic and balancing load among available network resources. In addition, our solution provides two key advantages over previous proposals. First, it allows for a simple computation of the optimal cache placement. Second, it provides knobs for operators to fine-tune performance. We validate our design through both analytical modeling and trace-driven simulations and show that our proposed solution achieves on average twice as many cache hits in comparison to previously proposed techniques, without increasing delivery latency. In addition, we show that the proposed framework achieves 19-33% better load balancing across links and caching nodes, being also robust to traffic spikes. |
| Databáze: | OpenAIRE |
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