'Intermediate node' diaporamas de présentation

B+-Trees and Hashing Techniques for Storage and Index Structures

B+-Trees and Hashing Techniques for Storage and Index Structures. Rizwan Rehman Centre For Computer Studies Dibrugarh University. Alternative File Organizations. Many alternatives exist, each ideal for some situation , and not so good in others:

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ECN B4 : Dao Thanh Chung ( bull@ht ) Tutor : Takatoshi Kanazawa ( takatosi@ht )

fNode : Reducing Network Packet Transmission Overhead in Indoor Heterogeneous Wireless Sensor Networks. Graduation Thesis Final Presentation Tokuda Lab. ECN B4 : Dao Thanh Chung ( bull@ht ) Tutor : Takatoshi Kanazawa ( takatosi@ht ). Background. Traditional WSN deployment

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Secure routing in multi-hop wireless networks (II)

Secure routing in multi-hop wireless networks (II). secured ad hoc network routing protocols; routing security in sensor networks;. outline. 1 Securing ad hoc network routing protocols 2 Secure routing in sensor networks. Some secure ad hoc network routing protocols.

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Index Tuning Strategies for SQL Server

Index Tuning Strategies for SQL Server. Kevin Kline Technical Strategy Manager, SQL Server Solutions Twitter @kekline Blog at http://KevinEKline.com[. Agenda. Speaker Bio Index Structures & Fundamentals Strategies for choosing good indexes

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A Framework for Reliable Routing in Mobile Ad Hoc Networks

A Framework for Reliable Routing in Mobile Ad Hoc Networks. Zhenqiang Ye Srikanth V. Krishnamurthy Satish K. Tripathi. Reliable Routing. Routing for nodes communications Nodes are vulnerable to failure Battery drain Compromise One solution - multipath routing Edge-disjoint path

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CSC 774 Advanced Network Security

CSC 774 Advanced Network Security. Topic 6. Security in Mobile Ad-Hoc Networks. Mobile Ad-hoc Networks (MANET). MANET No infrastructure support Wireless communication Mobile Applications for MANET Rescue missions Scientific explorations Military operations. Security in MANET.

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802.11 -- Interworking with 802.1Qat Stream Reservation Protocol

802.11 -- Interworking with 802.1Qat Stream Reservation Protocol. Date: 2009-11-19. Authors:. Abstract. This submission is an overview of proposed input from 802.11 to 802.1Qat Annex-Q Clause Q.2. A companion word document will be generated when the details in this submission are finalized.

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Routing in Ad Hoc Networks

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Forward Path Setup (Sending a RREP)

Forward Path Setup (Sending a RREP). A RREP message has several fields : The IP address of both source and destination If the destination is sending the RREP, it sends its current sequence number, a lifetime for the route and sets the hop-count to 0

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Grid-Based Key Pre-Distribution in Wireless Sensor Networks

Grid-Based Key Pre-Distribution in Wireless Sensor Networks. Source: KSII Transactions On Internet And Information Systems Vol. 3, No. 2, April 2009 Authors: Abedelaziz Mohaisen, DaeHun Nyang, YoungJae Maeng, KyungHee Lee, Dowon Hong Presenter: Hsing-Lei Wang

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Mobile Ad hoc Networks COE 549 Power Control

Mobile Ad hoc Networks COE 549 Power Control. Tarek Sheltami KFUPM CCSE COE http://faculty.kfupm.edu.sa/coe/tarek/coe549.htm. Outline. Basic Mechanisms Distributed Algorithm Estimating the Minimum Transmit Power Topology Description of a Cluster-Based Procotol Gateways

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Conversions

Conversions. Regular Expression to FA FA to Regular Expression. Language Representing Regular Expressions. We define a mapping from a regular expression ? to a language L(?) as follows: Step 0: L(?) = L( e ) = L(?) = for each ? ? ? Inductive step: L((? ? ?)) = L((??)) = L(?*) =.

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Consistent Route Optimization Mechanism (CROM) for AODV in MANETs

Consistent Route Optimization Mechanism (CROM) for AODV in MANETs. ????? ???? 2 ?? ? ?? 2011. 12. 08. Contents. Introduction Motivation Background Shrink Consistent Route Optimization Mechanism Conclusion. Introduction (1/2). Many routing protocols have been proposed

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Improving TCP Performance over MANETs by Exploiting Cross-Layer Information Awareness

Improving TCP Performance over MANETs by Exploiting Cross-Layer Information Awareness. Xin Yu NYU Presented by: David Choffnes. Outline. Intro to MANETs and DSR Problems with TCP over MANETs EPLN and BEAD Results Conclusion. Mobile Ad-Hoc Networks (MANETs).

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Routing Optimization Techniques for Wireless Ad Hoc Networks

Routing Optimization Techniques for Wireless Ad Hoc Networks. Maher Kaddoura, Ranga Ramanujan, and Steven Schneider Architecture Technology Corporation Eden Prairie, MN, USA. Contribution. Routing optimization techniques that greatly enhance network performance. Weighted Reservation (WR)

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Heterogeneous Sensor Routing (HSN) Stack in TinyOS

Introduction The HSN routing stack implements two routing protocols: Destination-Sequenced Distance-Vector (DSDV) and Flood. Heterogeneous Sensor Routing (HSN) Stack in TinyOS. 1. DSDV a. Introduction

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Key Distribution in DTNs Using Erasure Codes

Key Distribution in DTNs Using Erasure Codes. Ed Birrane Edward.Birrane@jhuapl.edu 443-778-7423. Erasure Coding. Forward error correction code over an erasure channel. Forward Error Correction Code Store redundant information in a transmission Reed-Solomon Code Erasure Channel

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Overview of AODV protocol Part 2

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Current entering the node is positive and leaving the node is negative

Kirchhoff's Current Law ( KCL):. The algebraic sum of all the currents at any node in a circuit equals zero. Current entering the node is positive and leaving the node is negative. Current entering the node is negative and leaving the node is positive.

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ETSI M2M / TIA architecture harmonization

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