'Multi path' diaporamas de présentation

Joint Multi-Channel Link Layer and Multi-Path Routing Design for Wireless Mesh Networks

Joint Multi-Channel Link Layer and Multi-Path Routing Design for Wireless Mesh Networks. Wai-Hong Tam and Yu-Chee Tseng National Chiao-Tung University, Taiwan Chung-Yuan Christian University, Taiwan INFCOM 2007. Outline. Introduction Motivation Four Scenario Scenario Related Work

659 views • 50 slides

Overview of Wireless Networking

Overview of Wireless Networking. Wireless Link Characteristics Services and Applications. Overview. Fundamental issues and impact wireless mobility For each layer in the protocol stack A subset of design requirements Design challenges/constraints Possible design options.

618 views • 48 slides

Overview of Wireless Networking

Overview of Wireless Networking. Overview. Fundamental issues and impact wireless mobility For each layer in the protocol stack A subset of design requirements Design challenges/constraints Possible design options. F. E. B. C. A. D. Physical Properties of Wireless.

612 views • 45 slides

Enhancing DTN capacity with Throwboxes (work-in-progress)

Enhancing DTN capacity with Throwboxes (work-in-progress). Wenrui Zhao, Yang Chen, Mostafa Ammar , Mark Corner, Brian Levine, Ellen Zegura Georgia Institute of Technology University of Massachusetts Amherst. Delay Tolerant Networks (DTN). DTNs: non-Internet-like networks

462 views • 37 slides

Tributaries and Deltas: Efficient and Robust Aggregation in Sensor Network Streams

Tributaries and Deltas: Efficient and Robust Aggregation in Sensor Network Streams. Amit Manjhi, Suman Nath, Phillip B. Gibbons. Carnegie Mellon University Intel Research Pittsburgh. Background: Sensors. Constraints: Conserving battery power is important

462 views • 35 slides

Wireless Communication Fundamentals

494 views • 32 slides

Self-Organizing Topological Tree for Online Vector Quantization and Data Clustering

Self-Organizing Topological Tree for Online Vector Quantization and Data Clustering. Advisor : Dr. Hsu Graduate : Kuo-min Wang Authors : Pengei Xu, Chip-Hong, Senior Member,IEEE Andrew Palinski , Member, IEEE .

403 views • 30 slides

Introduction: Mobile and Wireless Network

Introduction: Mobile and Wireless Network. 1. Paradigm Shift to Mobile Comm. S-curve S-curve viewed from research and development The tool that helps to decide on whether an enterprise should continue the use of a technology or replace the technology with something else

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

May 2003. doc.: IEEE 802.15-03137r2. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Sony CFP Presentation Date Submitted: 5 May 2003 Source: Etsumi Fujita, Katsumi Watanabe, Katsuyuki Tanaka, Bob Huang

401 views • 25 slides

Object Tracking in a 2D UWB Sensor Network

Object Tracking in a 2D UWB Sensor Network. November 8th , 2004 Cheng Chang EECS Dept ,UC Berkeley cchang@eecs.berkeley.edu Joint work with Prof. Anant Sahai (funded by NSF). Outline. Information from channel estimates Single object tracking Estimation bounds: Cramer Rao lower bound

407 views • 25 slides

Wireless Communication Fundamentals

Wireless Communication Fundamentals. Wired Vs. Wireless Communication. Each cable is a different channel. One media (cable) shared by all. Signal attenuation is low. High signal attenuation. No interference. High interference

580 views • 22 slides

Multi-Path Multimedia Transmission in Ad-hoc Networks Related Work

Multi-Path Multimedia Transmission in Ad-hoc Networks Related Work. Marcin Michalak michalak@iam.unibe.ch. Agenda. ad-hoc networks multi-path routing content experimental results references summary. Environment.

316 views • 19 slides

Wen Xu and Jennifer Rexford Princeton University

Wen Xu and Jennifer Rexford Princeton University. MIRO : M ulti-path I nterdomain RO uting. If Some if Good, More is Better. More flexible path selection Avoid a path with an undesirable hop Better load balancing Split traffic over multiple paths Faster recovery from failure

261 views • 15 slides

CDMA, OFDM

CDMA, OFDM. CDMA. Code Division Multiplexing. CDMA. Used in 3G networks. Direct Sequence Spread Spectrum: spread a data bit into multiple chips. Each sender has a unique chip sequence, that is *orthogonal* with other chip sequences. Simple Examples of CMDA. A: (-1 -1 -1 +1 +1 -1 +1 +1 )

770 views • 13 slides

Cascading simulation techniques in Europe: the PRACTICE experience

Cascading simulation techniques in Europe: the PRACTICE experience. E. Ciapessoni, D. Cirio, A. Pitto 2013 IEEE PES General Meeting Vancouver, British Columbia, Canada July 21-25, 2013. PRACTICE. Tool for probabilistic assessment of operational risk in power systems

323 views • 13 slides

Distributed adaptive multi-criteria load balancing: analysis and end to end simulation

230 views • 13 slides

Wireless Communication Fundamentals

Wireless Communication Fundamentals. David Holmer dholmer@jhu.edu. Physical Properties of Wireless. Makes wireless network different from wired networks Should be taken into account by all layers. Wireless = Waves. Electromagnetic radiation

302 views • 11 slides

Summer Wrap-up 2009 - Research Framework & Future Plan -

Summer Wrap-up 2009 - Research Framework & Future Plan -. Jongryool Kim jrkim@nm.gist.ac.kr 2009-08-26 Networked Media Laboratory School of Information & Mechatronics Gwangju Institute of Science & Technology http://netmedia.gist.ac.kr. Status Review. Ph.D. Fourth Semester Research area

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ECE 283 Digital Communication Systems

ECE 283 Digital Communication Systems . Course Description

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ECE 283 Digital Communication Systems

ECE 283 Digital Communication Systems . Course Description

209 views • 4 slides