Towards Communication-Efficient Peer-to-Peer Networks
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| author | Hourani, Khalid Moses Jr., William K. Pandurangan, Gopal |
| author_facet | Hourani, Khalid Moses Jr., William K. Pandurangan, Gopal |
| contents | We focus on designing Peer-to-Peer (P2P) networks that enable efficient communication. Over the last two decades, there has been substantial algorithmic research on distributed protocols for building P2P networks with various desirable properties such as high expansion, low diameter, and robustness to a large number of deletions. A key underlying theme in all of these works is to distributively build a \emph{random graph} topology that guarantees the above properties. Moreover, the random connectivity topology is widely deployed in many P2P systems today, including those that implement blockchains and cryptocurrencies. However, a major drawback of using a random graph topology for a P2P network is that the random topology does not respect the \emph{underlying} (Internet) communication topology. This creates a large \emph{propagation delay}, which is a major communication bottleneck in modern P2P networks.
In this paper, we work towards designing P2P networks that are communication-efficient (having small propagation delay) with provable guarantees. Our main contribution is an efficient, decentralized protocol, $\textsc{Close-Weaver}$, that transforms a random graph topology embedded in an underlying Euclidean space into a topology that also respects the underlying metric. We then present efficient point-to-point routing and broadcast protocols that achieve essentially optimal performance with respect to the underlying space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_16661 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Towards Communication-Efficient Peer-to-Peer Networks Hourani, Khalid Moses Jr., William K. Pandurangan, Gopal Distributed, Parallel, and Cluster Computing F.2 We focus on designing Peer-to-Peer (P2P) networks that enable efficient communication. Over the last two decades, there has been substantial algorithmic research on distributed protocols for building P2P networks with various desirable properties such as high expansion, low diameter, and robustness to a large number of deletions. A key underlying theme in all of these works is to distributively build a \emph{random graph} topology that guarantees the above properties. Moreover, the random connectivity topology is widely deployed in many P2P systems today, including those that implement blockchains and cryptocurrencies. However, a major drawback of using a random graph topology for a P2P network is that the random topology does not respect the \emph{underlying} (Internet) communication topology. This creates a large \emph{propagation delay}, which is a major communication bottleneck in modern P2P networks. In this paper, we work towards designing P2P networks that are communication-efficient (having small propagation delay) with provable guarantees. Our main contribution is an efficient, decentralized protocol, $\textsc{Close-Weaver}$, that transforms a random graph topology embedded in an underlying Euclidean space into a topology that also respects the underlying metric. We then present efficient point-to-point routing and broadcast protocols that achieve essentially optimal performance with respect to the underlying space. |
| title | Towards Communication-Efficient Peer-to-Peer Networks |
| topic | Distributed, Parallel, and Cluster Computing F.2 |
| url | https://arxiv.org/abs/2406.16661 |