DAKNETDAKNET

Presented By:Presented By:

rreemarreema

CONTENTSCONTENTS

IntroductionIntroduction Why DaknetWhy Daknet Ad-hoc networkAd-hoc network Daknet network ArchitectureDaknet network Architecture How Daknet worksHow Daknet works Daknet in actionDaknet in action Features of DaknetFeatures of Daknet ConclusionConclusion

Challenges to Rural ConnectivityChallenges to Rural Connectivity

Lack of sensitization on the use and benefits of Lack of sensitization on the use and benefits of ICT in rural areas.ICT in rural areas.

Most rural areas don’t have the infrastructure Most rural areas don’t have the infrastructure to support cheap and good connectivity.to support cheap and good connectivity.

Poor internet access.Poor internet access. Availability of power is also a challengeAvailability of power is also a challenge

IntroductionIntroduction

Daknet, whose name derives from the HindiDaknet, whose name derives from the Hindi

word “Dak” is an ad hoc network , using word “Dak” is an ad hoc network , using wireless technology to provide digital wireless technology to provide digital connectivity. connectivity.

It combines a physical means of transportation It combines a physical means of transportation with wireless data transfer to extend the with wireless data transfer to extend the internet connectivity provided by a central internet connectivity provided by a central uplink or hub.uplink or hub.

Why Daknet?Why Daknet?

Provide non real-time infrastructures and Provide non real-time infrastructures and applications such as voice mail, e-mail, and applications such as voice mail, e-mail, and electronic bulletin boards.electronic bulletin boards.

Provide store- and forward or asynchronous Provide store- and forward or asynchronous modes of communication that is significantly modes of communication that is significantly lower in cost and do not necessarily sacrifice lower in cost and do not necessarily sacrifice the functionality required to deliver services. the functionality required to deliver services.

Simpler to add in a device to the system.Simpler to add in a device to the system. Low maintenance cost.Low maintenance cost.

Ad-Hoc NetworkAd-Hoc Network

An ad-hoc wireless An ad-hoc wireless network is a collection network is a collection of wireless mobile hosts of wireless mobile hosts forming a temporary forming a temporary network without the aid network without the aid of any established of any established infrastructure or infrastructure or centralized control. centralized control.

Design PrinciplesDesign Principles

Lower costs by sharingLower costs by sharing Store and forward self-describing dataStore and forward self-describing data Separate locationing and addressingSeparate locationing and addressing Use all links, opportunistically, if necessaryUse all links, opportunistically, if necessary Separate data and control planeSeparate data and control plane Proxies for legacy supportProxies for legacy support Replication for reliabilityReplication for reliability

Daknet Network ArchitectureDaknet Network Architecture

The main parts of a daknet The main parts of a daknet

architecture are:architecture are:

Mobile access pointMobile access point

HubHub

KioskKiosk

Mobile Access PointMobile Access Point

Daknet travels data over short point to point links between Daknet travels data over short point to point links between kiosks and portable storage devices called mobile access kiosks and portable storage devices called mobile access points.Mobile Access Point is mounted on and powered by a points.Mobile Access Point is mounted on and powered by a bus or motorcycle, or even a bicycle with a small generator. bus or motorcycle, or even a bicycle with a small generator. MAPs are installed on vehicles that normally pass by each MAPs are installed on vehicles that normally pass by each village to provide store-and-forward connectivity.village to provide store-and-forward connectivity.

MAP EquipmentsMAP Equipments

MAP equipment used on the bus includes:MAP equipment used on the bus includes: a custom embedded PC running Linux with a custom embedded PC running Linux with

802.11b wireless card and 512 Mbytes of 802.11b wireless card and 512 Mbytes of compact flash memory.compact flash memory.

a 100-mW amplifier, cabling, mounting a 100-mW amplifier, cabling, mounting equipment, and an omni directional antenna.equipment, and an omni directional antenna.

an uninterruptible power supply powered by an uninterruptible power supply powered by the bus battery.the bus battery.

HubHub

It is a common connection point for devices in a network. It is It is a common connection point for devices in a network. It is used to connect segments of a LAN. It contains multiple ports. used to connect segments of a LAN. It contains multiple ports. Packet at one port copied to all other ports-all segments see Packet at one port copied to all other ports-all segments see all packets. When the vehicle passes near an internet access all packets. When the vehicle passes near an internet access point –the hub- it synchronizes all the data from different point –the hub- it synchronizes all the data from different kiosks using the internet.kiosks using the internet.

KioskKiosk

It is a booth providing a computer related It is a booth providing a computer related service such as ATM. In each village there is service such as ATM. In each village there is kiosk. It enable user to enter and display kiosk. It enable user to enter and display information on the same device. Either information on the same device. Either directional or omni directional antennas are directional or omni directional antennas are located at each of the kiosks or hubs. located at each of the kiosks or hubs.

WiFi CardsWiFi Cards

In Daknet a wireless card i.e wifi card is In Daknet a wireless card i.e wifi card is mounted on a vehicle that travels around to mounted on a vehicle that travels around to remote villages and exchanges updated remote villages and exchanges updated information with each kiosk it encounters information with each kiosk it encounters through WiFi.through WiFi.

Advantages of using WiFi cardsAdvantages of using WiFi cards

Increase mobilityIncrease mobility Cost for setting up a network is much less than Cost for setting up a network is much less than

running wires.running wires. WiFi has a global set of standards.WiFi has a global set of standards. support encryption in order to protect the data support encryption in order to protect the data

that is being transmitted.that is being transmitted.

How Daknet worksHow Daknet works

Contd…Contd…

1.1. Thae MAP devices are mounted on specific transports that Thae MAP devices are mounted on specific transports that regularly pass through a series of villages.regularly pass through a series of villages.

2.2. As the vehicle carrying the MAP comes within range of As the vehicle carrying the MAP comes within range of each village they automatically sense a wireless connection each village they automatically sense a wireless connection with a kiosk and deliver and collect data at relatively high with a kiosk and deliver and collect data at relatively high bandwidth.bandwidth.

3.3. Whenever a MAP comes within range of another kiosk or a Whenever a MAP comes within range of another kiosk or a hub, data is automatically uploaded to and downloaded from hub, data is automatically uploaded to and downloaded from the internet.the internet.

4.4. These steps are repeated for all the vehicles carrying MAP, These steps are repeated for all the vehicles carrying MAP, thus providing a low cost wireless network and seamless thus providing a low cost wireless network and seamless communication infrastructure .communication infrastructure .

Daknet PackageDaknet Package

DakNet offers an affordable and complete connectivity DakNet offers an affordable and complete connectivity package, including:package, including: Wireless hardware (wireless transceiver and Wireless hardware (wireless transceiver and

antennas) antennas) Networking software Networking software Server and cache software Server and cache software Custom applications, including email, audio/video Custom applications, including email, audio/video

messaging, and asynchronous Internet searching and messaging, and asynchronous Internet searching and browsing browsing

API enabling organizations to easily integrate DakNet API enabling organizations to easily integrate DakNet with their existing applications with their existing applications

Features of DakNetFeatures of DakNet

Since it avoids using phone lines or expensive Since it avoids using phone lines or expensive equipment, Daknet provides one of the lowest-equipment, Daknet provides one of the lowest-cost accessibility solutions in the world.cost accessibility solutions in the world.

The same hardware, software and user The same hardware, software and user interface can be used to enjoy real-time interface can be used to enjoy real-time information access.information access.

It has the ability to provide a seamless method It has the ability to provide a seamless method of upgrading to always -on broadband of upgrading to always -on broadband connectivity.connectivity.

Daknet In ActionDaknet In Action

Daknet is currently in Daknet is currently in action in many places. action in many places. They are,They are,

Bhoomi initiative in Bhoomi initiative in KarnatakaKarnataka

SARI (Sustainable SARI (Sustainable Access for Rural India) Access for Rural India) project of Tamilnaduproject of Tamilnadu

Ratnakiri project in Ratnakiri project in Cambodia Cambodia

ThankThank you you