CAN WE ACCSESS INTERNET USING BLUETOOTH PRESENTED BY HEENA CSE 3RD YEAR 3609140

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

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

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.

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.

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

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

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 email, retrieval of HTML documents, reliable

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.

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

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

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

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

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

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

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.

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.

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

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.

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

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.

REFRENCES www.google.com www.wikipidea .com