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Read the TexPoint manual before you delete this box.: AAAA. Overview. Motivation. ... Asynchronous wake-up and no failures. ... MIS S: O(log log n)
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Selected s from Roger Wattenhofer on Routing TexPoint fonts used in EMF. Read the TexPoint manual before you delete this box.: AAAAA * * * * * * * * * * Pseudo ...
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After log* n competitions a competitor changes its state. If dominated or dominator it is done. A competitor can become a ruler at most 13 times in a row.
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Issue of locality is crucial in distributed systems! ... Crucial for. fast Algorithms! Thomas Moscibroda @ DANSS 2004. 5. k-Neighborhood ...
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A Robust Interference Model for Wireless Ad-Hoc Networks Pascal von Rickenbach Stefan Schmid Roger Wattenhofer Aaron Zollinger
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Selfishness in Transactional Memory. Raphael Eidenbenz, Roger Wattenhofer. D. istributed. C. omputing. G. roup. Game Theory meets Multicore Architecture. Good morning ...
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Lecture on MAC Anish Arora CIS788.11J Introduction to Wireless Sensor Networks * * * * * * * * * Ad Hoc and Sensor Networks Roger Wattenhofer 6/* Ad Hoc and ...
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Distributed Disaster Disclosure. Bernard Mans. Stefan Schmid. Roger Wattenhofer ... Focus of this talk: Sensor nodes - Simple 'computers' with sensors ...
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Title: Clock Synchronization Author: Roger Wattenhofer Last modified by: Philipp Sommer Created Date: 4/23/2004 4:05:06 PM Document presentation format
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The Impact of Internet Policy and Topology on Delayed Routing convergence C. Labovitz, A. Ahuja, R. Wattenhofer and S. Venkatachary. IEEE INFOCOM 2001.
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Atul Adya, William J. Bolosky, Miguel Castro, Gerald Cermak, Ronnie Chaiken, John R. Douceur, Jon Howell, Jacob R. Lorch, Marvin Theimer, Roger P. Wattenhofer ...
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Online Power-aware Routing in Wireless Ad-hoc Networks. by Qun Li, Javed Aslam, Daniela Rus ... [3] Fabian Kuhn, Roger Wattenhofer, Yan Zhang, and Aaron Zollinger. ...
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Fabian Kuhn, Thomas Moscibroda, and Roger Wattenhofer (MobiCom'04) 2005.10.25 ... Self-organizing a structured multi-hop radio network ...
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Algorithmic Models of Wireless Communication Magn s M. Halld rsson Reykjavik University, Iceland
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Nodes in an ad-hoc network are not 100% reliable ... Mobile Ad-Hoc Network (MANET) It is often ... 'Big Bang' (deployment) of a sensor and/or ad-hoc network: ...
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Title: XTC: A Practical Topology Control Algorithm for Ad-Hoc Networks Author: Institut TIK Last modified by: nic Created Date: 1/5/2005 9:03:43 AM
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Augmenting Anycast Network Flows. ... General Idea: Separate data & control plane in a network. ... Structure of the Talk.
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Title: XTC: A Practical Topology Control Algorithm for Ad-Hoc Networks Author: Institut TIK Last modified by: dcg Created Date: 1/5/2005 9:03:43 AM
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Churn and Selfishness: Two Peer-to-Peer Computing Challenges Stefan Schmid Distributed Computing Group ETH Zurich, Switzerland schmiste@tik.ee.ethz.ch
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Presence of 'vagabond' paths, s/w errors. ... in formulating nechanisms to handle 'vagabond' paths. Roadmap ... Evolve mechanism to handle 'vagabond' paths. ...
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Thus, 3-5, ETA F5. Thomas Moscibroda, Stefan Schmid. Course Material ... Christos G. Cassandras, Stephane Lafortune. Introduction to Discrete Event Systems. ...
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The Impact of Policy and Topology on Internet Routing Convergence ... Open question: In practice, what topological and policy factors impact convergence delay ? ...
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A Self-repairing Peer-to-Peer Systems Resilient to Dynamic Adversarial Churn Fabian Kuhn, Microsoft Research, Silicon Valley Stefan Schmid, ETH Zurich
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Large collections. The entire collection is stored on a single electronic storage medium ... allows to browse collections based on smilarity ...
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Clock Synchronization in Practice? Radio Clock Signal: Clock signal from a reference source (atomic clock) is transmitted over a long wave radio signal
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Related Work in Geometric Routing ... A new name for GFG. GPSR. MobiCom ... All necessary information is stored in the message. Source and destination positions ...
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... Delay Tolerant Networks Applications Interplanetary Internet Spacecraft communications ... low Secure Wireless Communication ... underwater, and some forms of ad ...
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An O(log n) Dominating Set Protocol for Wireless Ad-Hoc Networks under the Physical Interference Model Andrea W. Richa Arizona State University
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Most dynamic routing algorithms. use flow control: Don't utilize all the free links ... with destinations in same column. Excitement probability. 37. No ...
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... at most J and remove at most L peers in any time period of ... A lot of future work! A first step only: dynamics of P2P systems offer many research chellenges! ...
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u. v. h. To ensure connectivity on the grid, add grid nodes in the cone. h = 0.223. ? = 0.37 ... Connectivity on the network. Connectivity on the virtual grid ...
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The time until the last packet. is delivered to its destination. 12. Congestion: ... A high priority packet. successfully reaches its destination. with probability ...
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Avoids political favoritism. Does not necessarily maximize value. Auctions ... Treat spectrum same as land. Allows resale, renting, etc. = opens up secondary ...
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A matching M in a graph G is a set of nonloop edges with no shared endpoints. ... A. Israeli and A. Itai, A fast and simple randomized parallel algorithm for ...
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All-In-One Solution. Routing in Mesh and Sensor Networks ... Property 1 (Sparseness): Any ball Bv(2x ) covers at most 2(1 x) nodes from an arbitrary -net. ...
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Distributed triangulation-based algorithm for logical links (Hu) ... Centralized spanning tree algorithm (Ramanathan and Rosales-Hain) ...
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Distributed File Systems A, Muthitacharoen, B. Chen, and D. Mazieres, A Low-bandwidth network file system, Proc. 18th SOSP Symp., pp. 174 187, 2001.
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A World of (Im)Possibilities Nancy Lynch Celebration: Sixty and Beyond Hagit Attiya, Technion Jennifer Welch, Texas A&M University Introduction One of the main themes ...
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Messages between two neighboring nodes may be fast in one direction and slow in ... Time, Clocks, and the Ordering of Events in a Distributed System ...
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To develop algorithms and mathematically prove their correctness, simplifying ... to keep the analysis tractable and neglecting important properties of the nw ...
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involving neighboring nodes' initial clock values and the delays between them ... The tight bound on how close a node's clock can get to the source time is half ...
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In local algorithms, nodes must decide only using local knowledge. ... Algorithms also work if interference radius transmission radius ...
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Deployment Algo. 30 /42. Incremental Deployment - topologies. No Error ... Deployment Algo. 31 /42. Distributed Deployment. Nodes make decisions independently ...
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Directories can be multiply linked. info.txt: 8cd349a3. Owned by Alice. Signed, Alice ... Look up that id in the DHT to find peers with that directory ...
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Flooding/Echo with exponentially growing TTL on the Backbone Graph gives: ... Apply geometric flooding with exponentially increasing radius and the right ...
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Maximal matching (MM) ... The same time lower bounds for MM and MIS can be shown by a simple reduction. ... that computing a MM achieves a constant ...
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Define the distance function based on the virtual coordinates ... Define the distance function. Goal: virtual distance reflects real distance ...
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... real testbed with 20 Micaz motes. Four motes are laid closely together to act ... Lightweight enough to run on MicaZ mote with small memory and code footprint ...
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Use some slack---at each hop see if new distance is 'approximately better' than ... do this periodically, at a frequency based on rate of mobility and radio range r: ...
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Partly based on a tutorial, joint with Torsten Suel, at ... Packet radio network model (PRN) ... Assume bidirectional radio reachability. Example protocols: ...
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for the Maximal Independent Set Problem in Growth-Bounded Graphs. Beat Gfeller, Elias Vicari ... Make this set independent, but still O(loglog n)-ruling using the det. ...
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Sk, Slog(3 n) k, S2log(3 n) k , ... , Sxlog(3 n) k ... in decreasing order of longest link in Fk = Sk U Slog(3 n) kU...U S xlog(3 n) k ...
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Each time slot is interference-free 'Interface ... S of W time slots. ... weighted links, find the minimum length interference-free schedule of this set. ...
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Real-world applications with deep algorithmic underpinnings and consequences ... Find a bipartite sub-graph G'(A' UB', E') where |A'|=a, |B'|=b and E' is an empty set. ...
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Ran Wolff, Amir Bar-Or, Denis Krivitsky, Bobi Gilburd, Tsachi Scharfman, Arik ... Sensor networks, peer-to-peer systems, and grid systems, produce and store ...
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Dept. of Computer Science and Engineering. York University ... Microholes and our approach ... Intel Mote, Internet: http://www.intel.com/research ...
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