Mobility and Handover in mobile systems
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Mobility and Handover in mobile systems
| Course | UNIK4700, UNIK9700 |
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| Title | Mobility & Handover in mobile systems |
| Lecture date | 2012/10/28 0900-1200 |
| presented | by Naji Ahmed Kadah, Josef Noll |
| Objective | The objective of this lecture is to explain the principles of Mobility and Handover (Handoffs) in mobile communications. |
| Learning outcomes | What will we learn today:
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| Pensum (read before) | |
| References (further info) | References:
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| Keywords | Handover, Mobile Systems, Mobility |
this page was created by Special:FormEdit/Lecture, and can be edited by Special:FormEdit/Lecture/Mobility and Handover in mobile systems.
Test yourself, answer these questions
- How does MobileIP work? What are the advantages and the limits of mobile IP?
- Describe the difference between MobileIP and UMTS/GPRS mobility management.
- What happens when mobile moves from one cell to another?
- Differences between Hard & Soft handoff
- When will a handoff occur?
- Reasons for failed handoff.
- Ways to improve handoff performance.
Lecture notes
- Media:UNIK4700-L9H12.pdf
- Media:MobilityPrinciples_comments.pdf
- Video: mms://lux.unik.no/UNIK4700-JN/UNIK-20121102.wmv
⌘ E2-IP Mobility
Main components
- Home Agent (HA)
- Foreign Agent (FA)
⌘ Macro versus Micro Mobility
⌘ Mobile IP Mobility
Mobile IP – the long term vision (also for mobile networks)
- HA, FA
- IPv6
- real-time requirements?
Mobile-IP developments
- IDMP - intra-domain mobility protocoll
- Hawaii
- Cellular IP, Cellular IPv6 (CIPv6)
- Hierarchical Mobile IPv6 (HMIPv6)
- Fast Mobile IPv6
⌘ Mobile IPv4 Triangular routing
- Correspondent does not know IP address of "moved" device, thus sends a request to the HA
- HA forwards to the moved device via Foreign Agent (FA)
- Moved device answers directly to the Correspondent
⌘ Mobile IPv4 to Mobile IPv6
- replace triangular routing, keep address
- route optimisation
- defined for low-speed mobility
Intra-domain mobility
- Host based routing
- Data integrity protection,
Security
- Sender authentication,
- Data integrity protection,
- Replay protection
⌘ Heterogeneous network mobility
- combines IP and mobile components
- challenge: credential distribution
⌘ References
- [Ala2000] Sami Ala-Luukko, "Mobility Management in IETF and GPRS Specifications", May 2000, Helsinki University
of Technology, http://www.tml.tkk.fi/Opinnot/Tik-110.551/2000/papers/management_in_IETF/iwork.htm % introductory reading micro-/macro-mobility
- [Paint2000] Frederic Paint, Geir Egeland, "Seamless Mobility in IP Networks", Telektronikk 1.2001, pp 083-091 % introductory reading
- [Akyildiz2004] Ian F. Akylidiz, Jiang Xie, and Shantidev Mohanty, "A survey of Mobility management in Next-Generation all-IP based wireless systems", IEEE Wireless Communications, Aug 2004, pp 16-28
- [Ferreira2008] Ferreira, N.G.; Sargento, S.; Aguiar, R.; Implementation and experimental evaluation of a fast local mobility protocol, Computers and Communications, 2008. ISCC 2008. IEEE Symposium on 6-9 July 2008 Page(s):757 - 763
- [Lee2008] Global Mobility Management Scheme with Interworking between PMIPv6 and MIPv6, Networking and Communications, 2008. WIMOB '08. IEEE International Conference on Wireless and Mobile Computing, 12-14 Oct. 2008 Page(s):153 - 158
- [Aho2008] Aho, K.; Aijanen, J.; Ristaniemi, T.; Impact of Mobility to the VoIP over HSUPA System Level Performance, Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE 11-14 May 2008 Page(s):2091 - 2095
