1. CAN WE ACCSESS INTERNET USING BLUETOOTH
PRESENTED BY
HEENA
CSE 3RD YEAR

2. CONTENTS Abstract Introduction History What is internet?
TCP/IP Protocol Suite
What is Bluetooth?
What is Ad-hoc Network?
Why Ad-hoc Networks are needed?
Various protocols used in Ad-Hoc network
Working of Ad-hoc Network
Issues in Ad-hoc Network
Advantages of Ad-hoc Network
Disadvantages of Ad-hoc Network
Ad-hoc Network v/s Infrastructure Network
Conclusion
Future scope
Refrences

3. ABSTRACT
1.) Bluetooth is used for sharing of data 2.) Wi-Fi is used to access internet But if question comes.. Can we access internet using Bluetooth? So here we ‘ll study about Internet, Bluetooth & Ad-hoc networks

4. introduction Internet is the network of networks.
Bluetooth ,an example of ad-hoc network is a true wireless, automatic and inexpensive technology used for both synchronous and asynchronous traffic.
Mobile Adhoc Network (MANET) is a collection of independent mobile nodes that can communicate to each other via radio waves.
The mobile nodes that are in radio range of each other can directly communicate, whereas others needs the aid of intermediate nodes to route their packets.

5. history
Ad-hoc networks date back to seventies. They were developed by the defence forces , to comply with a military framework. The aim was to rapidly deploy a robust , mobile and reactive network , under any Circumstances. These networks then proved useful in commercial and industrial fields, first aid operations and explorations missions. Ad-hoc networks, also called peer-to-peer networks, still have a long way to go in order to be fully functional and commercial, as it has its defects such as security and routing which we will discuss further.

6. WHAT IS INTERNET? The largest network of networks in the world.
Uses TCP/IP protocols and packet switching
Runs on any communications substrate.

7. Tcp/ip protocol suite
The TCP/IP protocol suite is the protocol architecture of the Internet
The TCP/IP suite has four layers: Application, Transport, Network, and Data Link Layer

8. Functions of the Layers
Data Link Layer
Functions
Reliable transfer of
frames over a link
Media Access Control on a LAN
Network Layer
Routing, addressing
Move packets from source host to destination host
Transport Layer
Delivery of data between hosts.
Connection establishment/termination, error control, flowcontrol.
Application Layer
Application specific (delivery of , retrieval of HTML documents, reliable

9. WHAT IS BLUETOOTH?
Bluetooth is a wireless ad-hoc network concept that was presented in feb’1988 by its five origional promoters Ericsson,nokia,IBM,toshiba and intel.
Bluetooth is a short range radiolink which origionally was developed to eliminate the cables between portable and fixed electronic devices.
Today bluetooth is a true wireless Ad-hoc n/w intended for both synchronous and asynchronous traffic.
Bluetooth consist of no of protocols; all residing in the lowest layer in the OSI model ie the physical layer and datalink layer
Bluetooth is a radio frequency technology that uses 2.4 GHz ISM band.

10. WHAT IS AD-HOC NETWORK?
Ad-hoc network is a self configuring network of wireless links connecting mobile nodes.
Collection of nodes that do not rely on a predefined infrastructure
Decentralised wireless network.
No fixed infrastructure.
Form arbitrary topologies.
Self organising nodes.
Not necessarily but often mobile

11. why ad-hoc networks are needed?
There is increasing needs for connectivity in situations where there are no base stations
Ease of deployment
Speed of deployment
Decreased dependence on infrastructure

12. VARIOUS AD-HOC NETWORKS
ZIGBEE
MOBILE-FI
WI-FI
WIMAX

13. various protocols used in ad-hoc network
Tabledriven/Proactive protocols
Determine routes independent of traffic pattern
Traditional link-state and distance-vector routing protocols are
Proactive
Worked at small geographical stations
Reactive protocols
Maintain routes only if needed
Worked at large geographical stations

14. working of ad-hoc network
Multi-hopping If there is no direct communication link between the source queue manager and the target queue manager, it is possible to pass through one or more intermediate queue managers on the way to the target queue manager. This is known as a multi-hop

15. security goals in ad-hoc network
Generally when considering the security of networks, we examine it under the headings:
Availability
Confidientiality
Authentication
Integrity
Non-repudiation

16. issues in ad-hoc networks
Open Medium - Eavesdropping is more easier than in wired network.
Dynamically Changing Network Topology – Mobile Nodes comes and goes from the network,
thereby allowing any malicious node to join the network without being detected.
Cooperative Algorithms - The routing algorithm of MANETs requires mutual trust between nodes
which violates the principles of Network Security.
Lack of Centralized Monitoring - Absence of any centralized infrastructure prohibits any monitoring agent in the system.

17. ADVANTAGES OF AD-HOC network
They provide access to information and services regardless of geographical position.
These networks can be set up at any place and time.
These networks can be work without any pre- existing infrastructure.

18. DISADVANTAGES OF AD-HOC network
Limited resourses
Limited physical security
Lack of authorization facilities
Volatile network topology makes it hard to detect malicious nodes.
Intrinsic mutual trust vulnerable to attacks

19. AD-HOC NETWORK V/S INFRASTRUCTURE NETWORK
Ad-hoc network is
one where there are
no access points
passing information
Betweenparticipants
Infrastructure network passes information through a central information hub which can be hardware or software.

20. CONCLUSION
TILL NOW WE CAN’T ACCESS INTERNET USING BLUETOOTH DUE TO THE PREVIOUS DISCUSSED ISSUES.

21. FUTURE SCOPE
Mobile ad-hoc networks are the future of wireless networks why?
Because they are practical, versatile, simple, easy to use and inexpensive!
After researching ad-hoc network in depth, we believe that they will be the future of wireless technology.
It is true that performance suffers as the number of devices grows and large ad-hoc networks become difficult to route and manage.
The area of ad-hoc network is a ver fast growing area, and due to the vast research in them, we are seeing these problems dissappear and they are coming into a world of their own.

22. REFRENCES
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