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DAKNET. Presentation By: Aishwarya Patil Under the guidance of Prof. Shivkumar K. INTRODUCTION. DakNet is an internet service based on the technology, which was spun-off from an idea, known as DonkeyNet.
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DAKNET • Presentation By: AishwaryaPatil Under the guidance of Prof. Shivkumar K.
INTRODUCTION • DakNet is an internet service based on the technology, which was spun-off from an idea, known as DonkeyNet. • DakNet is an ad hoc network which uses wireless technology to provide digital connectivity. • It uses a store and forward technique through Wi-Fi, which is described as "Cached Wi-Fi Intelligence” • DakNet, derives from the Hindi word for “post” or “postal,”
Mobile Ad hoc Connectivity • DakNet wireless network takes advantage of the existing communications and transportation infrastructure. • DakNet transmits data over short point-to-point links between kiosks and portable storage devices, called mobile access points (MAPs). • Mounted on and powered by a bus, a motorcycle, or even a bicycle with a small generator • The Daknet operation thus has two types: • MAP-equipped vehicle comes within range of a village WiFi- enabled kiosk • MAP-equipped vehicle comes within range of an Internet access point (the hub)
Seamless Scalability • In addition to its tremendous cost reduction, a critical feature of DakNet is its ability to provide a seamless method of upgrading to always-on broadband connectivity. • The only change is the addition of fixed-location wireless antennas and towers—a change that is entirely transparent to end users because they need not learn any new skills or buy any new hardware or software. • DakNet makes it practical for individual households and private users to get connected.
Daknet in Action • Villages in India and northern Cambodia are actively using DakNet with good results. • One of DakNet’s earliest deployments was as an affordable rural connectivity solution for the Bhoomi e-governance project. • In September 2003,we also implemented DakNet in a remote province of Cambodia for 15 solar-powered village schools, telemedicine clinics, and a governor’s office.
Myths And Truths • Myth : The village telephone is the best model for poor communities. Truth : Giving everyone access to digital messaging is better than installing a community telephone. • Myth :Poor people don’t need computers. Truth : The poor not only need digital services, but they are willing and able to pay for them.
Daknet’s network architecture • The main parts of daknet architecture are: • Mobile access point • Hub • Kiosk Architecture
How It Works? • DakNet transmits data over short point-to-point links between kiosks and portable storage devices, called mobile access point(MAPs). • MAP physically transports data • DakNet Mobile Access Point (MAP) Networks require: • Appropriate Environment: computers in remote villages that can be accessed by road transport. • Approach: MAPs are installed on vehicles that normally pass by each village to provide store-and-forward connectivity
Contd.. • “Daknet” allows rural villages to exchange messages and video through a mobile ISP. • Villagers are able to send message and record videos through these kiosks. • All information is downloaded to the central system at the office station.
Advantages & Disadvantages of daknet Real-time communications not required for public kiosks • 1. Communications tend to be asynchronous • 2. Villager’s trade –off latency for affordability Leverages two major trends • 1. Cost of wireless broad (WiFi) • 2. Cost of digital storage
Contd.. • Easy to implement on widespread basis • Lower uplink costs and maintenance requirements • Bandwidth does not decrease with distance • Seed infrastructure that is scalable with demand • Reduced regulatory challenges and licensing fees
Disadvantages • Token ring constraint if a lower tier goes down, all higher tier goes down • Experience and Expertise person can only handled kiosk • Efficiency of bandwidth reduced for each tier
APPLICATIONS • EDUCATION • TELEMEDICINE • E-GOVERNMENT • E-COMMERCE
Conclusion • DakNet’s low deployment cost and its enthusiastic reception by rural users has motivated dozens of inquires for further deployments. • The larger goal is to shift the policy focus of the government’s universal-service-obligation funds from wire line village telephones to wireless ad hoc networking. • Country wide connectivity through Daknet.
References • www.cs.cmu.edu • www.thinkcycle.org/tc-filesystem • www.thinkcycle2.media.mit.edu • www.firstmilesolutions.com • www.daknet.net • www.digitalpartners.org/drishtee.html