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Seminar Mobile Computing Winter S emester 01/02

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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Seminar Mobile Computing Winter S emester 01/02

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  1. Dipl.-Inf. Uwe Kubach Prof. Dr. Kurt Rothermel SeminarMobile ComputingWinter Semester 01/02

  2. 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

  3. Contents of this Talk • Your presentation • Literature Research • Preparing your talk • Preparing your paper • Schedule and dates • Assignment of topics

  4. 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.

  5. 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)

  6. 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)

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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!

  15. 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)

  16. 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!

  17. 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

  18. 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

  19. 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, ...)

  20. 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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