Seminar Mobile Computing Winter S emester 01/02 - PowerPoint PPT Presentation

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Dipl.-Inf. Uwe Kubach Prof. Dr. Kurt Rothermel. Seminar Mobile Computing Winter S emester 01/02. Contact Information. Web page : http://www.informatik.uni-stuttgart.de/ipvr/vs/lehre/ws0102/seminare/MC/ index .html Instructor: Uwe Kubach

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Dipl.-Inf. Uwe Kubach

Prof. Dr. Kurt Rothermel

SeminarMobile ComputingWinter Semester 01/02


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Contact Information

Web page:

http://www.informatik.uni-stuttgart.de/ipvr/vs/lehre/ws0102/seminare/MC/index.html

Instructor:

Uwe Kubach

Email:Uwe.Kubach@informatik.uni-stuttgart.deRoom: 0.179Office hours: by appointment

Examiner:

Prof. Kurt Rothermel

Email: Kurt.Rothermel@informatik.uni-stuttgart.deRoom: 2.006Office hours: by appointment


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Contents of this Talk

  • Your presentation

    • Literature Research

    • Preparing your talk

    • Preparing your paper

  • Schedule and dates

  • Assignment of topics


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Preparing your Presentation

General :

  • Research the literature for relevant articles and extract the information pertinent to your assigned topic.

  • Do not lose focus of the overall topic of the seminar and your assigned topic.

  • Prepare a talk on the topic you have examined.

  • Prepare a paper summarizing the results of your work.


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Literature Research

  • Starting points:

    • Topic description

    • (possibly) own information

  • Check the library for

    • Books

    • Proceedings

    • Magazines and transactions

    • References in topic description are only hints.

  • Web-based research:

    • most currentinformation (authors’ web pages)

    • Information from manufacturers and organizations

    • scientific articles (e.g. ResearchIndex under citeseer.nj.nec.com/cs)

    • Generic search engines (e.g. Google under www.google.com)


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Presentations

  • Presence at all presentations is mandatory for all participants.

  • You are expected to participate actively in the discussions.

  • Time:

    • 30 minutes presentation time

    • longer talks (up to 45 minutes) possible after announcement.

    • about 15 minutes discussion

  • Presentation media:

    • Slides and overhead projector

    • Electronic presentation (caution: more work)


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Preparing Your Presentation

  • Collect and read material

  • Understand the goal of the presentation and your target audience

    • What do you want them to learn?

    • What does your audience already know?

    • What are the core contents of your presentation?

    • What kind of presentation will you give (overview talk, detailed technical presentation, discussion of research directions, …)

    • Possibly: Do you need to prepare additional material (handouts, …)?

  • Calculate the time needed for your presentation

    • 2-3 minutesper slide


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Structuring your Presentation

  • Decide on the contents of your talk

    • You will not have time to cover every detail: Decide which parts of the information are important

  • Structure the contents

    • like in a book

    • in logical, historical or functional order

  • Estimate time needed to cover each subtopic

  • Estimate number of slides per subtopic


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How to Organize a Presentation

  • Structure

    • Cover slide

    • Overview of the contents (repeat during presentation if giving a long talk)

    • Main part; organized into subtopics

    • Summary

    • Outlook

  • Pay attention to the transitions between the subtopics

  • Practice the talk, e.g. in front of a friend


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Slide Design Guidelines

  • Use landscape format

  • Use a sans-serif font of sufficient size (e.g. 20pt Arial)

  • Use the same layout throughout your presentation

  • Do not overload the slide; 7-9 points per slide will do

  • Avoid complete sentences

  • Use graphics to enrich your presentation


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Giving a Talk

  • Have a clear idea of what you are presenting

  • Make sure everyone can see the slides, don’t obstruct the view

  • Try to look at the audience most of the time

  • Speak freely:

    • Don’t read off the slides

    • Don’t memorize the talk exactly

  • Stay close to the topic you are presenting

  • Be prepared to skip slides if you run out of time

  • Avoid long discussions with the audience - there is time for discussions after the talk


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Advantages

Less expensive (no slides)

Might be more impressive

Dynamics of a situation can be visualized (animations)

Color can be used more easily

Disadvantages

More work, additional effort to set up equipment

Technical failures possible

(Potentially) harder to re-use material for your paper

Electronic Presentations


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Paper

  • Formally, your paper should have the following contents:

    • Your name and semester

    • Date of your talk

    • Title of the seminar

    • Name of the topic you have prepared

    • Abstract of your paper

    • Introduction (including the contents of the paper)

    • Main part

    • Summary and outlook

    • Bibliography


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Paper (2)

  • Make sure that readers of your paper can understand it without further information

    • Give special attention to the structure

    • Make sure the reader can follow the thread of your arguments

  • The paper should be…

    • …10-15 pages long

    • …written in a 12pt font, single-spaced

  • Important: Stay objective!


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Schedule

  • Today: Assignment of topics

  • Four weeks before your talk: Q & A (optional)

  • One week before your talk: mandatory meeting

    • Draft version of presentation slides

    • Draft version of paper

  • Date of talk:

    • Final version of paper (printed + electronically)

    • Final version of your slides (printed + electronically)

  • Make appointments for meetings early! (e-mail)


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Cheating

  • Everyone who cheats fails.

  • Copying text from other authors in your paper / slides is not allowed!

  • Copying ideas without referencing the authors is not allowed!

  • You have to write all parts of your paper / slides on your own!


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List of Topics

  • Conventional vs. Mobile Computing

    • Overview of conventional protocol stack

    • Problems / challenges in Mobile Computing

    • Mobile Computing devices

  • Wireless Local Area Networks

    • Problems with CSMA/CD in wireless environments

    • MACA

    • Infrared vs. RF

    • Standards (IrDA, IEEE 802.11, Bluetooth, HIPERLAN)

  • Mobile Network Layer

    • Overview of IP

    • Problems with IP in wireless environments

    • Mobile IP and Tunneling

    • DHCP


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List of Topics (2)

  • Mobile Transport Layer

    • Overview of TCP

    • Problems with TCP in wireless environments

    • Wireless transport protocols (I-TCP, M-TCP, TCP Westwood, ...)

  • Wireless Telecommunication Systems

    • Packet switched vs. Circuit switched networks.

    • Architecture of current and future telecommunication systems (GSM, HSCSD, GPRS, EDGE, UMTS)

    • Data rates and costs

  • Mobile Data Management I

    • Caching

    • Replication

    • Asynchronous information access


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List of Topics (3)

  • Mobile Data Management II

    • Broadcast dissemination

    • Prefetching

    • Hoarding

  • Mobile Ad Hoc Networks (MANETs)

    • Characteristics

    • Classification of routing algorithms for MANETs

    • Examples of routing algorithms for MANETs

  • Location-Aware Systems

    • Definition

    • Location systems (Active Badges, GPS, DGPS, ...)

    • Examples of location-aware systems (GUIDE, VITs, CyberGuide, ...)


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List of Topics (3)

  • Ubiquitous Computing

    • Idea and vision

    • What's new about this paradigm? Challenges?

    • Devices

    • Examples of ubiquitous computing applications


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