wlan in disaster and emergency response (wider) final presentation
TRANSCRIPT
WLAN In Disaster and Emergency Response (WIDER)
Final Presentation
WIDER project Final Presentation
Participants
• Team– Konstantinos Avgeropoulos– Gerhard Caspar– Khurram Jahangir Khan– Ming-Shuang Lang– Xiaoying Wang
• Principal: Dag Nielsen• Coach: Catherine Mulligan• Co-coach: Fredrik Lilieblad
WIDER project Final Presentation
Presentation overview
1. Background and objective2. Network architecture and operation3. End user services4. Project evaluation5. Future work6. Conclusion7. Video8. Discussion
WIDER project Final Presentation
Project background
• Ericsson Response program started by Ericsson.
• WIDER project initiated by Ericsson Response and KTH to provide an enhanced communications network in disaster sites.
• The project gained attention by international telecommunications and humanitarian organizations (ITU, Red Cross and others).
WIDER project Final Presentation
Motivation
• Operations performed by Humanitarian Relief Organizations increased in size and frequency.
• Contemporary communication (mainly voice) is not efficient in many cases. Data communications needed.
• Satellite links used even for local calls. Waste of resources.
• Need for Internet access and related services (e.g. e-mail, Web browsing etc)
WIDER project Final Presentation
Project goal and outcome• Purpose: To design and implement a
complete, reliable and efficient communication solution for Humanitarian Relief Organizations operating in disaster sites.
• Main outcome: An Ericsson Response Unit (ERU) containing equipment and instructions on how to deploy and operate the communications system.
WIDER project Final Presentation
Main Aspects – What is WIDER?1) A wireless network that connects relief
organization camps allowing local communication.
WIDER project Final Presentation
2) A standalone network that operates in areas when there is little or no infrastructure.
Main Aspects – What is WIDER?
WIDER project Final Presentation
Main Aspects – What is WIDER?3) A highly portable Internet Service Provider
network that uses a satellite system to reach Internet.
WIDER project Final Presentation
Design Requirements
• Efficient use of communication resources
• Security• Mobility• Ease of use• Fast deployment• Redundancy
WIDER project Final Presentation
Point to Point Wireless Link
Satellite Link
WIDER WLAN
Red CrossNetworkUN Network
Internet
Network topology
WIDER Network
WIDER project Final Presentation
Point to Point Wireless Link
Satellite Link
Red CrossNetworkUN Network
Internet
Dynamic Firewall (OASIS)
Layer-3 Switch
WIDER Server Farm
NAT & Firewall
Network topology (contd.)
WIDER project Final Presentation
802.1Q Trunk
WIDER Network
Red CrossUN802.1x Access Point
Authentication & mobility
User
WIDER project Final Presentation
802.1Q Trunk
WIDER Network
Red CrossUN802.1x Access Point
User Moving to other Network
Authentication & mobility (Contd.)
WIDER project Final Presentation
802.1Q Trunk
WIDER Network
Red CrossUN802.1x Access Point
Access Blocked Initially
Authentication & mobility (Contd.)
WIDER project Final Presentation
802.1Q Trunk
WIDER Network
Red CrossUN802.1x Access Point
Access Blocked Initially
User Credential
Authentication Mechanism
Valid User ? YES!!
Authentication & mobility (Contd.)
WIDER project Final Presentation
802.1Q Trunk
WIDER Network
Red CrossUN802.1x Access Point
Access Granted
Red Cross VLAN
Authentication Mechanism
Authentication & mobility (Contd.)
WIDER project Final Presentation
End User Services
• The main purpose of the WIDER network is to facilitate relief workers.
– End users should be thrilled by the benefits of the system
– Only this way will the project be successful.
WIDER project Final Presentation
End User Services (Contd.)
• We have identified a great need for text based services – i.e. Written communication
– Communications today are mainly covered by radio, i.e. Voice, which has many disadvantages
– Text based services needed to complement existing communication channels
WIDER project Final Presentation
Instant Messenger
Exodus Client running on Jabber Server
• An Instant Messenger has all the benefits of voice communication but none of the drawbacks
• Fills the gap between voice communication and written communication
WIDER project Final Presentation
Other Services
• Webpage– Information and instructions for end users
• FTP Server– For exchange of files and documents
• E-mail Server– For internal and external e-mail
• Web cache – Faster web browsing, satellite bandwidth
efficiency
WIDER project Final Presentation
Project evaluation - Achievements• Network Design satisfies most of the
requirements
• Implementation– WLANs– Wireless links– Internet services– Advanced authentication system
WIDER project Final Presentation
Project evaluation - Unfinished parts
• GSM/GPRS and IP network integration
• Satellite link
• Redundancy
• Explicit documentation
WIDER project Final Presentation
Further work and improvements• Unified central database• Hardware based firewall• Alternative technologies for point-to-
point links for longer range• Improvement of the performance of TCP
over the long delay satellite links• Field testing• Packaging
WIDER project Final Presentation
Conclusion
• We believe that we designed the final product to the best of our knowledge and effort.
• The WIDER network will soon be ready to be launched on the field.
• We hope that it will prove a useful and reliable tool in the hands of its future users.
WIDER project Final Presentation
Conclusion (Contd.)
• Our experiences and gains
– Solutions Design and Network Architecture
– Hands-on experience with high-end hardware
– Working in a professional environment
– Team work
– Project management
– Finally, a solid and good friendship
Welcome to our demonstration.
Get a hands-on experience of the WIDER network!
Place: Electrum Atrium, Kista
Date: Friday, May 23rd 10.00 – 14.00