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Coded caching is a technique that generalizes conventional caching and promises significant reductions in traffic over caching networks. However, the basic coded caching scheme requires that each file hosted in the server be partitioned into a large number (called the subpacketization level) of non-overlapping subfiles. From a practical perspective, this is problematic as it means that prior schemes...
The Internet’s tremendous value is undoubtedly dependent on its universal connectivity among a great number of heterogeneous networks that are distributed over the world. In recent years, while the Internet’s scale has expanded exponentially, the current status of its connectivity is still in the lack of comprehensive and formal study. In this paper, we contribute to the understanding of Internet’s...
This paper reviews the characteristics of overlay networks and defines effective relay nodes that can improve the performance of interactive real-time applications. A heuristic relay node selection algorithm for overlay routing is proposed. The algorithm can find effective relay nodes for end-to-end links in an overlay network, and is scalable and robust due to its decentralization and randomization...
As real-time communications are developing rapidly on the Internet, overlay routing has been widely proposed as an easily deployable way to meet their stringent requirements of end-to-end (E2E) performance and interactivity. Contrasting to that much previous work focused on the design of novel protocols, some significant issues impacting overlay routing's feasibility of performance improvement and...
The prosperity of various real-time applications triggers significant challenges for the Internet to meet the critical end-to-end delay requirements. This paper investigates the feasibility and practical issues of using overlay routing to improve end-to-end delay performance, with the analysis of round trip time data collected over three months by the all pairs pings project between each pair of hundreds...
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