DAKNET Presentation By: Aishwarya Patil Under the guidance of Prof. Shivkumar K. 1

2 CONTENTS Sl.NoTopics 1Abstract 2Introduction 3Mobile Ad Hoc Connectivity -3.1 The real-time aspect of telephony -3.2 Seamless Scalability 4Daknet -4.1 In Action -4.2 A Lat Mile Stone 5DakNet’s Network’s Architecture, -5.1 How it works. 6Daknet’s Advantages & Disadvantages 7Conclusion 8References

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,” 3

M OBILE A D HOC C ONNECTIVITY 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) 4

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S EAMLESS S CALABILITY 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. 6

D AKNET IN A CTION 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. 7

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M YTHS A ND T RUTHS 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. 10

D AKNET ’ S NETWORK ARCHITECTURE The main parts of daknet architecture are: Mobile access point Hub Kiosk Architecture 11

H OW I T W ORKS ? 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 12

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C ONTD.. “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. 14

A DVANTAGES & D ISADVANTAGES 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 15

C ONTD.. 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 16

D ISADVANTAGES 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 17

APPLICATIONS EDUCATION TELEMEDICINE E-GOVERNMENT E-COMMERCE 18

C ONCLUSION 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. 19

R EFERENCES

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