Last Update: 10/30/2006 11:55:10 AM -0500

Topics for Mid-term

• Overview
  • ubiquitous computing, location aware computing, smart environments, user mobility
     
• Wireless mobile networks
  • physical layer
    • radio propagation characteristics due to wireless and mobility: fading, interference and ISI.
    • modulation and modem design, in particular diversity to handle fading, and how to handle ISI
    • Example networks: GSM and 802.11
  • link layer
    • media access control: basic problems such as hidden terminal
    • media access control: basic schemes such as CSMA/CA, RTS/CTS, integration of polling and random access
    • capacity and how to improve capacity (e.g., multiple channels)
  • network layer routing
    • basic problems facing routing?
    • location management:
      • mobile IP, Internet mobility: how to make laptop continue to work when you move around?
      • location management in cellular networks: how does cellular phone companies know my location when I am roaming?
    • routing in ad hoc networks
      • traditional routing model: DSDV, Link state, link reversal, DSR
      • non-traditional routing:
        • Opportunistic routing and coding
        • geographic routing
          • geographic routing: what is geographic routing? why do it? how to do it?
          • geographic routing without localization: can I do geographic routing without knowing true positions?
    • topology control
  • transport layer: reliability and congestion control
    • transport protocols: why TCP does not work well in wireless mobile networks and how to improve it?
  • cross layer design

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