Mobility in Communication Networks - Contents

Introduction

  • Why mobility and what does it require?
  • Overview and elementary properties of mobility support in networks
  • Application examples
    - conferences, kiosks, ...
  • Basic technical problems
    - requirements, models
  • Standardisation
    - DECT, HiPerLAN, IEEE 802.11ETSI, IETF, IEEE, ...

Mobility support (physical layer)

  • Modulation
  • Medium access
    - without control phase (ALOHA, ...)
    - with control phase (DECT, GSM, ...)
    - wireless pecularities (hidden terminals, ...)
  • Multiplexing the medium
    - space
    - frequency
    - time
    - code
  • Characteristics
    - fading and attenuation
    - statistical and analytical models

Mobility support (network layer)

  • Connecting to a network
    - ARP
    - Bootp
    - DHCP
  • Location determination (physical and topological)
  • Manifesting the current location
  • Topology adaptation
    - routing update
    - tunneling
  • lazy/eager/seamless handover
  • Standardisation
    - Mobile IP
    - IPv6
    - Cellular IP etc.
    - UMTS

Mobility and Security

  • Authentication and Authorization
  • Standardisation
    - IPSEC

Mobility and QoS

  • Wireless transmission quality
  • QoS management
    - RSVP
    - DiffServ
  • Application requirements
    - Connection time and bandwidth
    - Costs
    - Security