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Roger Wattenhofer
Researcher at ETH Zurich
Publications - 589
Citations - 29559
Roger Wattenhofer is an academic researcher from ETH Zurich. The author has contributed to research in topics: Wireless sensor network & Distributed algorithm. The author has an hindex of 83, co-authored 560 publications receiving 27459 citations. Previous affiliations of Roger Wattenhofer include Google & Universidade Federal de Minas Gerais.
Papers
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Proceedings ArticleDOI
Information propagation in the Bitcoin network
TL;DR: This paper analyzes how Bitcoin uses a multi-hop broadcast to propagate transactions and blocks through the network to update the ledger replicas, and verifies the conjecture that the propagation delay in the network is the primary cause for blockchain forks.
Proceedings ArticleDOI
Achieving high utilization with software-driven WAN
Chi-Yao Hong,Srikanth Kandula,Ratul Mahajan,Ming Zhang,Vijay Gill,Mohan Nanduri,Roger Wattenhofer +6 more
TL;DR: A novel technique is developed that leverages a small amount of scratch capacity on links to apply updates in a provably congestion-free manner, without making any assumptions about the order and timing of updates at individual switches.
Journal ArticleDOI
Farsite: federated, available, and reliable storage for an incompletely trusted environment
Atul Adya,William J. Bolosky,Miguel Castro,Cermak Gerald F,Ronnie Chaiken,John R. Douceur,Jon Howell,Jacob R. Lorch,Marvin M. Theimer,Roger Wattenhofer +9 more
TL;DR: The design of Farsite is reported on and the lessons learned by implementing much of that design are reported, including how to locally caching file data, lazily propagating file updates, and varying the duration and granularity of content leases.
Proceedings ArticleDOI
Distributed topology control for power efficient operation in multihop wireless ad hoc networks
TL;DR: This work proposes a simple distributed algorithm where each node makes local decisions about its transmission power and these local decisions collectively guarantee global connectivity and gives an approximation scheme in which the power consumption of each route can be made arbitrarily close to the optimal by carefully choosing the parameters.
Book ChapterDOI
On Scaling Decentralized Blockchains
Kyle Croman,Christian Decker,Ittay Eyal,Adem Efe Gencer,Ari Juels,Ahmed E. Kosba,Andrew Miller,Prateek Saxena,Elaine Shi,Emin Gün Sirer,Dawn Song,Roger Wattenhofer +11 more
TL;DR: In this article, the authors analyze how fundamental and circumstantial bottlenecks in Bitcoin limit the ability of its current peer-to-peer overlay network to support substantially higher throughputs and lower latencies.