Wireless Healthcare
Applications
Presented: Deng-Sing Yang
Adviser: Chih-Kuo Liang
Date:2011.11.30
Outline
1
Overview
2
Introduction
3
Materials & Methods
4
Results
5 Conclusion
6
Future works
7
References
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Overview
 Mobile healthcare (m-health)
 “Always connected” healthcare functionality
 Concept background
 HSDPA/HSUPA
 Mobile WiMAX
 mObile- Tele-Echography using an ultraLight rObot (OTELO)
 Robot arm control (limitation)
 Ultrasound imaging
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Introduction
HSDPA
(High Speed Downlink Packet Access)
 An enhanced 3G， also dubbed 3.5G
speeds of up to 42 Mbit/s downlink and 84 Mbit/s
HSUPA
(High Speed Uplink Packet Access)
 A 3G mobile telephony protocol in the HSPA
family with up-link speeds up to 5.76 Mbit/s
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Introduction
Worldwide Interoperability for
Microwave Access (WiMAX )
 4G wireless communication technology
 Communication technology for wirelessly
delivering high-speed internet service to large
geographical areas.
 Bit rates 40Mbits/s upto 1Gbit/s
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HSDPA vs. WiMAX
Technology
HSDPA
WiMAX
Standard
3GRPP Rel-5
IEEE 802.16e
Max. Date Rate
14.4Mbps
15Mbps
Channel
Bandwidth
5MHz
5MHz
Coverage
0.5-5Km
1-50Km
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Medical Quality of Services
Issues to be addressed:
 Utilization
• Ultrasound streaming data only
 Packet Loss
 End to End Delay
• <5s for video
• <350ms for m-health application
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Materials
&
Methods
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Fig. 1 The OTELO Mobile Robotic System over 3.5G (HSDPA) /
WiMAX communication network
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Fig. 2 Q-USR algorithm and state model. Shows the timing sequence
between the Q-learning controller and the wireless medical video streaming
environment in terms of the states, the actions and relevant reward.
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Materials & Methods
 Implementation software:
 LabVIEW
 MATLAB
HSDPA network
 Vodafone / UK
 Data rate:
• Downlink: 1.8Mbps
• Uplink: 384 kbps
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Materials & Methods
Experimental Ultrasound scanner
 13 frames per second (fps)
Buffer size
 Twice the average frame size
Ultrasound image transmission
 Streams with PSNR = 37.75 dB
 Average frame rate 9.3 fps
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Time delay (expert side)
 0.07 sec (16 byte robotic control data)
 Ave. time to reach expert: 0.12±0.063 sec
End to End time delay
 0.253 sec.
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Results
Fig. 3. Average 3.5G throughput of the received ultrasound streams at PSNR
(37.75dB) and frame rate (9.3 fps)
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Results
Fig. 4. 3.5G uplink bandwidth capability
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Results
Delay Variation (Jitter)
 Average delay jitter 0.063
Fig. 5. Performance of the packet delay at the expert end
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Paper Conclusion
Presented provisions for medical
quality services using HSDPA and
WiMAX
Successful implementation of Q-USR
control algorithm
In the future need more comparative
study on HSUPA/ m-Wimax
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M-Health using WiMAX
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QoS Requirements
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System layout
Fig. 6 A mobile patient can communicate with hospital data center and/ or physician
through wireless networks, health grid station (HGS), and personal devices such as
PWH.
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Future works
Learn Android software & develop applications
Transmit physiological signals to mobile phone
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References


R.S.H. Istepanian and N.Y. Philip, ” Provisioning of medical quality of
services for HSDPA and mobile WiMAX in healthcare applications”, IEEE
International Conference Engineering in Medicine and Biology Society, Sept,
Minneapolis, 2009, pp. 717 – 720.
黃憲隆/Gle, “WiMax應用服務營運模式介紹” 2008.04.17 取自
http://www.mis.nkfust.edu.tw/newMisAdmin/file/news/167.pdf
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