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Tc,c: Time taken for convergecasting over a tree constructed by CTCCAA. ... Tree constructed by improved CTCCAA is almost 4 times faster than the tree ...
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To compute the i-th outcoming packet: It chooses an encoding vector. vi = [v1,i ... i-th outcoming packet: linear combination of original (x) packets with vi as ...
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Data aggregation (convergecast) is a frequent operation in WSN important to ... D. Estrin and S. Wicker 'Impact of Data Aggregation in Wireless Sensor Networks' ...
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Yu-Chee Tseng and Meng-Shiung Pan. Department of Computer Science ... we set t(v) to the minimal nonnegative integer l such that for each vertex u ...
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Fast Distributed Algorithm for Convergecast. in Ad Hoc Geometric Radio Networks ... Wireless ad-hoc networks. System characteristics: Large number of wireless nodes ...
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Routing patterns in WSN ... reception smoothes out and almost matches packet generation SEA Many packets are lost despite quick packet ... query) Data has attributes ...
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Cap tulo 5: Termina o e algoritmos b sicos Ajay Kshemkalyani e Mukesh Singhel Distributed Computing: Principles, Algorithms, and Systems Cambridge University Press
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Title, Introduction
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Chapter 13 Leader Election Leader Election Breaking the symmetry in system Similar to distributed mutual exclusion problems, the first process to enter the CS can be ...
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Transmission Power Control in Wireless Sensor Networks CS577 Project by Andrew Keating * Motivation Largely ignored by research community Lower transmission power ...
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Title: Concurrent Reading and Writing using Mobile Agents Author: Sukumar Ghosh Last modified by: Sukumar Ghosh Created Date: 11/1/2002 2:53:35 AM
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Ad hoc and Sensor Networks Chapter 12: Data-centric and content-based networking Holger Karl * Goal of this chapter Apart from routing protocols that use a direct ...
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Hirschberg-Sinclair algorithm. Assume ring is bidirectional ... Hirschberg-Sinclair algorithm. Initially: All processes are leaders. Round 0: ...
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DFS: Search process on G, traversing all vertices, progressing over edges, with ... traversing G in depth-first fashion. Note: For v to know whether neighbor w ...
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Minimum Spanning Tree Given a weighted graph G = (V, E), generate a spanning tree T = (V, E ) such that the sum of the weights of all the edges is minimum.
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Overhearing cost charged at each non-destination node, unless ... Algorithm: update look-ahead greedy algorithm [Guha & Khuller, Algorithmica'98] ...
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Scalable Trusted Computing Engineering challenge, or something more fundamental? Ken Birman Cornell University
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A basic algorithm for constructing network partitions
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i9. UID=5. i12. UID=7. i8. UID=11. i7. UID=12. i6. UID=3. i5. UID=2. i4. UID ... state, the edges defined by all the parent variables form a spanning tree of a ...
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Internal vertex: add and upcast counts. Distributed Implementation ... upcast to parent. internal node: upcast arbitrary candidate) Center selection procedure ...
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Max-Min D-Cluster Formation in Wireless Ad Hoc Networks - Alan Amis, Ravi Prakash, Thai Vuong, Dung Huynh Presenter: Nirav Shah Agenda Problem Statement System Model ...
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Systematic experimental study of link asymmetry & sync ACK ... The link quality for synchronous ACK is better than that for beacons because ...
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Results ... Optimal distributed algorithms for MST, counting, leader election and related problems. ... at the final step results in another 2k 1 increase ...
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O(eccentricity(G)) bounded time. Better algorithms for specific networks. n-1 messages (vs cca 3n for flooding) for oriented mesh/torus ...
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Constructions and applications. Part 2: Representations. Clustered representations ... Arbitrarily pick cluster S0 in S (as kernel Y of cluster Z constructed next) ...
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One-shot queries. Incremental results. Progress estimation. Meta-data replication ... No double-counting. Every endsystem's results counted ...
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1. Distributed Maintenance of Spanning Tree using Labeled Tree Encoding. Vijay K. Garg ... Proceedings of Cambridge Philosophical. Society, 49:381 385, 1953. ...
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Title: Constant Density Spanners for Wireless Ad hoc Networks Last modified by: Andrea Document presentation format: Custom Other titles: Times New Roman Arial ...
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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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Max-Min D-Cluster Formation in Wireless Ad Hoc Networks. Author:Alan D. Amis Ravi Prakash Thai ... NP-completeness of D-hops dominating set. Heuristic ...
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periodic channel activity check. Dozer System. Clock drift ... and theoretically, in contrast to the two other paradigms, event detection and query processing. ...
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Wireless Sensor Network Security: The State of the Art ASCI Springschool on Wireless Sensor Networks Yee Wei Law The University of Melbourne Prelude In the beginning ...
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In the upcast operation the different messages 'converge' to a single spot on ... We can do upcast operation to collecting the information and downcast operation ...
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will cover about half the course, supplemented by copies of papers ... If a b and b a, then a and b are concurrent ( a || b) Logical Clock ...
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BU-303 GPS Mouse via USB. External antenna connection. 27. Scalability of ... Uses D-2 coloring based TDMA. Differences from Harvest: Collects data from one ...
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Formal Models for Message Passing Systems. Asynchronous Systems ... Processors execute in lockstep. Execution is partitioned into rounds. At each round ...
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establish tradeoffs between the amount of advice given to nodes and the time ... will receive from rF the largest BFS index k such that vk stores some bits of A(F) ...
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Department of Computer Science University of Rome 'Sapienza' Italy ... on the vineyard. Tmote SKY devices by Moteiv corporation. TinyOS 2.x ...
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