A New High-Impact Research Areaarchive2.cra.org/uploads/documents/events/snowbird/... · Bill...
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Computing for DevelopmentA New High-Impact Research Area
Beki Grinter (Georgia Tech)Tapan Parikh (UC Berkeley)
Lakshminarayanan Subramanian (NYU)
Monday, August 9, 2010
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Sustainable Development Sustainable Development Theories:
Jeffrey Sachs: End of Poverty Bill Easterly: Elusive Quest for Growth C.K. Prahlad: Fortune at the Bottom of the Pyramid Amartya Sen: Development as Freedom Paul Collier: The Bottom Billion
Commonality: “Rural Empowerment critical to sustainable development”
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“Appropriate Technology a potential enabling factor to empower rural markets”
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The Untapped Rural Market Dharavi: Largest Slum in India
High cost of being Poor!
85% have a TV
50% have a pressure cooker
21% have a telephone
… but can’t afford a house
In Bangladesh: Poorest devote 7 percent
income to communications (GrameenPhone)
These are valid markets…
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Enabling Rural Markets
The Cellular Revolution 70% own a phone/SIM in Africa
Mpesa, Gcash – Mobile Microfinance 1 million transaction/days in Kenya
Aravind Telemedicine Network Telemedicine services for 500,000 patients/year
Digital Green + Digital Study Hall Teaching Farmers and Students using Recorded Video
eSoko A popular mobile marketplace
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Aravind Telemedicine Network
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Key Impact Domains
Communications
Healthcare
Finance
Education
Agriculture
Supply Chain + Commerce
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Computing for Development
Focus: Design, implementation and evaluation of new computing innovations that enable global social and economic development
First world technology - a bad fit!
Hardest Challenge: Identifying the “right problem”
Key requirements for technology adoption Locally appropriate Cost-effective Easy to use Extremely robust
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The Hard Real Challenges! Need for Cost-effective solutions
Minimalistic Computing: Design with minimal resources
Low-cost high-bandwidth connectivity
Appropriate Design + Accessible Technologies
Reliability + Sustainable Power
The Language Barrier
And many more….Challenges encompass several areas of CS
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Sample Grand Challenges Getting connectivity to the next 5 billion
Enabling easy information access in any language
Making power ubiquitous, reliable and sustainable
A sustainable and scalable model for development
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Building Real Networked
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WiFi-based Long Distance Networks
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WiFi-based Long Distance Networks
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WiFi-based Long Distance Networks
WiLD links use standard 802.11 radios
Longer range up to 150km Directional antennas (24dBi) Line of Sight (LOS)
Why choose WiFi: Low cost of $500/node
Volume manufacturing No spectrum costs Customizable using open-source
drivers Good datarates
11Mbps (11b), 54Mbps (11g)
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WiRE Architecture
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Poor Quality Power
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Poor Quality PowerVo
ltag
e R
ange
Number of Instances seen over 6 weeks
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Poor Quality Power
Spikes and Swells:
• Lost 50 power adapters
• Burned 30 PoE ports
Volt
age
Ran
ge
Number of Instances seen over 6 weeks
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Poor Quality Power
Spikes and Swells:
• Lost 50 power adapters
• Burned 30 PoE ports
Low Voltages:
• Incomplete boots
• HW watchdog fails
Volt
age
Ran
ge
Number of Instances seen over 6 weeks
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Poor Quality Power
Spikes and Swells:
• Lost 50 power adapters
• Burned 30 PoE ports
Low Voltages:
• Incomplete boots
• HW watchdog fails
Frequent Fluctuations:
• CF corruptions
• Battery Damage
Volt
age
Ran
ge
Number of Instances seen over 6 weeks
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Reliable Solar Power
Installations in Ethiopia
Solar panel monitoring systemLow-cost Solar Power controller
Installations in Ethiopia
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TCP Breakdown Problem!
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An Intermittent Usable Web Locally Interactive
Local Search + Large Semantic Web Caches
Works over low bandwidth No TCP breakdown
Intermittency aware Web search and browsing Keep the user in the design loop
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SMS-based Mobile Stack
Monday, August 9, 2010
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PaperSpeckle
Microscope attached cell phone
USB microscope
Speckle image
Paper
Monday, August 9, 2010