WiTMaX: Wireless TeleCare for Mass Casualty Situations - PowerPoint PPT Presentation

Title: WiTMaX: Wireless TeleCare for Mass Casualty Situations


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WiTMaX Wireless TeleCare for Mass Casualty
Situations

• Prof. Aura Ganz
• Ashish Deopura
• Rakesh Kothari
• Multimedia Networks Laboratory
• University of Massachusetts, Amherst

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Objective

• Design WiTMaX
• Wireless communication network in mass casualty
  scenarios to improve incident response
  capabilities
• Live streaming video from the field
• Easy to use system for emergency personnel
• Scalable hundreds of nodes

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Scenario
EMTPDA
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Scenario WiTMaX
WiTMaX
EMTPDA
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WiTMaX Usability
Local communicator
Local communicator
EMTPDA
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WiTMaX Advantages

• Live streaming video to better monitor the
  overall situation
• Continuously monitor environment
• Appropriately deploy resources in the field
• Manage and make decisions based on the status of
  various logistics like ambulances, beds available
  in nearby hospitals etc.

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WiTMaX Design Challenges

• Large number of nodes
• Use standard off-the-shelf hardware (e.g., PDAs)
• Dynamic wireless link capacity
• Bulky video transmission
• Simultaneous transfer of video, audio and
  environmental conditions
• Reliable two-way communication
• Easy to use system

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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System Components
Wireless network backbone (Comprised of WiTMaX
local communicators)
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System Component Provider PDA

• Displays readings from the various sensors (e.g.
  chemical sensors)
• Captures and transmits video.
• Transcodes video to reduce bandwidth requirements
  

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System ComponentWiTMaX Local Communicators

• Forms the wireless network backbone
• Perform transformations to manage limited
  bandwidth
• Perform ad hoc routing decisions based on network
  traffic to achieve load balancing
• Routes data to/from command center

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System component Command and Control Center

• Located just outside the disaster site
• Has a satellite link to communicate with
  hospitals and ambulances (Can integrate with MCP)
• Monitors overall situation, manages resources

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System component Command and Control Center

• Receives information from paramedics, Hazmat
• Alerts providers about urgent patients, danger
  zones

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Wireless Video Streaming Challenges

• Wireless Network Characteristics
• High Random bit-errors
• Frequent disconnections
• Low Bandwidth (effective)
• Live video characteristics
• Stringent buffering requirements
• Delay sensitive
• Loss tolerant

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Objective

• Deliver live video streams of high perceptual
  quality
• End-to-End architecture design
• Requires protocols for video adaptation to cope
  with changing network conditions
• Efficient utilization of end-to-end network
  resources

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Software Architecture
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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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WiTMaX Testbed

• Uses off-the-shelf hardware
• Exploits multiple channels provided by IEEE
  802.11b standard
• Live streaming video from the field to the
  command and control center

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WiTMaX Testbed
Local Communicators
Use of Multiple frequencies Less
interference
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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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System Testing

• In collaboration with our partners Security,
  Emergency Preparedness, and Response Institute
  (SEPRI) at Umass Amherst
• Qualitative evaluation of the
• GUI
• Video / Audio Quality
• System usability

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System Testing

• Data Reliability
• Comparing the sensor output with the data
  received at the providers PDAs
• Network scalability
• Throughput and delay measurements as the number
  of nodes increases

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Contribution

• WiTMaX
• Wireless communication network in mass casualty
  scenarios to improve incident response
  capabilities
• Live streaming video from the field
• Easy to use system for emergency personnel
• Scalable hundreds of nodes

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Agenda

• Objective
• Scenario
• WiTMaX System Description
• Adaptive Video Streaming
• WiTMaX Testbed
• WiTMaX System Testing
• Contribution
• Related Projects _at_MNL
• Summary

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Related TeleCare Projects _at_ MNL

• TelePatient
• Teletrauma

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TelePatient Concept

• Allow anytime and anywhere, 24/7 patient
  monitoring
• Low cost, small, light, autonomous, portable,
  patient centric unit
• Paradigm shift truly un-tethered implementation

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TelePatient Usability
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TelePatient Usability
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TelePatient Usability
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Telepatient Testbed
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TeleTrauma Concept

• Provide visual two-way communication in real-time
  between trauma physicians and on-site EMT
• Benefits
• Low cost, autonomous, portable, unit in the
  ambulance
• Enables continuous monitoring of patient
• Expedites the evaluation and management of
  injured victims
• Increases the chance of timely and appropriate
  actions.
• ? Improves the quality of trauma care

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Teletrauma Usability
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Teletrauma Testbed
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Summary

• We have designed and implemented projects related
  to communication networks for emergency
  situations
• Inputs required from emergency response agencies
  to increase system usability

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Contact Information

• Prof. Aura Ganz
• ganz_at_ecs.umass.edu

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Summary

• Successful design and implementation of projects
  related to communication in Healthcare for
  emergency situations

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backups
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WiTMaX Testbed
Local Communicators
Use of Multiple Channels Less interference
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Special conditions in a mass casualty scenario

• Large number of patients
• Significant shortage in medical personnel, other
  resources resulting in delay in treatment
• Delay in transportation of patients to hospitals

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WiTMaX Testbed
Local Communicators
Use of Multiple Channels Less interference