Integration of UMTS with WLAN at KFIA

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Integration of UMTS with WLAN at KFIA

• By
• Adel Al-Shahrani
• Taha Anwar
• Khalid Al- Otaibi
• S.M.Rehman
• May 20, 2006

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Outline

• Introduction
• Project Goals
• Problem Statement
• Project Team
• Analyses Methodology
• Challenges
• Basic Design
• Phase I (Open Vs. Loose) Design and Analysis
• Phase II (mSCTP Vs. Mobile IP) Design and
  Analysis
• Simulation Results Analysis
• Phase I (loose Vs. Open)
• Phase II (mSCTP Vs. Mobile IP)
• Conclusion

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UMTS/WLAN integration
Benefits of 3G
Benefits of WLAN

• Mobility
• Connectivity
• Reachability

• Lower costs
• Broadband
• services
• Widespread
• technology

WLAN/3G integration
Mobility Connectivity Reachability Broadband S
ervices Lower costs in hot spots
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Project Goal

• The goal of the project is to analyze the
  integration for universal mobile
  telecommunication system (UMTS) wireless network
  with a public wireless local area network (PWLAN)
  at King Fahd International Airport (KFIA) to
  provide seamless connectivity and access to
  various data services in both UMTS and PWLAN
  networks users.

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Problem Statement

• There are six scenarios of integrating 3G Cellar
  Network with Wireless LAN. Moreover, there are
  variety of mobility schemas can be used to
  streamline handover process between both
  networks.
• What is the optimum integration setting by
  considering loose Vs. open coupling, mSCTP Vs.
  Mobile IP?

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Project Team
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Analysis Methodology

• By studying both integration scenario (loose /
  Open) coupling and two mobility schemas (mSCTP /
  Mobile IP). Using OPNET as simulation environment
  to collect results for different traffic cases
  and loads.

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(Analysis Methodology) Project Phases
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Challenges

• OPNET doesnt support?
• AAA, HLR VLR
• No UMTS WLAN authentication
• WLAN Model not supporting mSCTP
• UMTS Model not supporting mSCTP
• UMTS Model not supporting Mobile IP
• No Workstation supporting both WLAN and UMTS
• Running more then 210 simulations (1h/simulation)

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Basic Network Design
STC
WLAN
UMTS
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Design Specs
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Assumptions

• Traffic calculation is based on maximum backbone
  link ?
• Each user needs 1 Mbps
• Maximum link support 1 Gbps
• For 7000 users ? 7 Gbps is needed ? not available
• Maximum link capacity is considered for 7000
  users
• For Mobility purpose, the users will start moving
  from the home network (i.e. UMTS) to foreign
  network (i.e. WLAN) after five minute from
  starting the simulation.
• The handover will take 1 second from the old to
  new network.
• All UMTS users will move to WLAN network.

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Assumptions (cont)

• Multimedia traffic is simulated as Video
  Conferencing.
• The foreground user is varied under different
  load (i.e. from 7000 to 1000) to show the
  difference between loose and open coupling with
  different number of users.
• The authentication process has been simulated
  using custom application
• UMTS authentication was implemented using
  customer application
• WLAN is using user id password authentication.

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Traffic Calculation
FTP Traffic ((Number of Background
userstraffic per user)/7)percentno. of
foreground users1Mbps percent
((68801Mbps)/7)20201Mbps201964 200
Mbps
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Example
196 Mbps
392 Mbps
392 Mbps
980 Mbps
980 Mbps
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Open Vs. Loose Analysis

• Both Open and Loose Coupling models sharing same
  billing system.
• In this project, the billing system is under STC
  supervision.
• In open coupling, every network has its own
  authentication system.
• In loose coupling, AAA is the authentication
  scheme in both UMTS and WLAN.

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OPEN Coupling
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LOOSE Coupling
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mSCTP Analysis

• mSCTP is a transport layer protocol
• It provides unicast end-to-end communication
  between two or more applications running in
  separate hosts
• Offers connection-oriented, reliable
  transportation of independently sequenced message
  streams

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mSCTP Analysis (cont.)
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Mobile IP Analysis

• Mobile IP is most useful in environments where
  mobility is desired and the traditional land line
  dial-in model
• It is necessary or desirable for a user to
  maintain a single address
• Mobile IP can go hand in hand with many different
  cellular technologies

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Mobile IP Analysis (cont.)
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Simulation Results
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Phase I Loose Vs. Open Coupling
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Traffic Behavior
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Phase II mSCTP Vs. Mobile IP
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Open mSCTP
Open MIP
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Open mSCTP
Open MIP
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Open mSCTP
Open MIP
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Loose mSCTP
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Open mSCTP
Open MIP
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Open mSCTP
Open MIP
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Traffic Behavior
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Conclusion

• Loose coupling provide better integration between
  UMTS and WLAN but with cost of extra
  authentication traffic between WLAN and UMTS.
• mSCTP has more impact on application (traffic /
  delay) than Mobile IP.
• The combinations for Mobile IP over loose
  coupling is the optimum option since loose
  coupling add small amount of overhead but it
  reduce operation cost for maintaining two
  authentication systems (WLAN/UMTS)

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Thank you