Bluetooth and mobile ip

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Bluetooth and mobile ip

  1. 1. BLUETOOTH AND MOBILE IP<br />Created by<br /> rajashekar ( puli )<br />9347497415<br />Adam’s engg college <br />Paloncha<br />Khammam dist<br />
  2. 2. ABSTRACT:<br /><ul><li> Mobility support in IP networks requires the use of servers to</li></ul> forward packets to mobile hosts and to maintain information <br /> pertaining to a mobile host’s location in the network.<br /><ul><li> In one proposed protocol, the mobile-IP protocol, location and </li></ul> packet forwarding functions are provided by servers referred to as <br /> home agents. <br /><ul><li> These home agents may become the bottleneck when</li></ul> there are a large number of mobile hosts in the network. <br /><ul><li> In this paper, we consider the design and analysis of load balancing</li></ul> mechanisms for multiple home agents in the mobile-IP protocol.<br /><ul><li> Bluetooth technology was intended to hasten the convergence of </li></ul> voice and data to handheld devices, such as cellular telephones and <br /> portable computers. <br /><ul><li> Through the efforts of its developers and the members of the </li></ul> Bluetooth Special Interest Group (SIG).<br />
  3. 3. INTRODUCTION:<br /><ul><li> Bluetooth is cable free or wireless technology.
  4. 4. The idea of a cable-free, or wireless, technology was initially </li></ul> conceived by Ericsson in 1994.<br /><ul><li> Bluetooth is an open standard specification for a radio </li></ul> frequency (RF)-based, short-range connectivity technology that <br /> promises to change the face of computing and wireless <br /> communication.<br /><ul><li> It also will enable wireless connections for desktop computers, </li></ul> making connections between monitors, printers, keyboards,<br /> and the CPU cable-free. <br /><ul><li> A key objective in providing mobility support is to ensure that</li></ul> mobile hosts are able to send and receive messages when they<br /> move within a network or from one network to another.<br />
  5. 5. BLUETOOTH:<br /><ul><li>Bluetooth technology was intended to hasten the convergence of </li></ul> voice and data to handheld devices, such as cellular telephones <br /> and portable computers. <br /><ul><li>Through the efforts of its developers and the members of the </li></ul> Bluetooth Special Interest Group (SIG), it is now emerging<br /> with features and applications that not only remain true to its <br /> original intent, but also provide broader uses of its technology.<br />
  6. 6. Bluetooth Components<br />A complete Bluetooth system will require these elements:<br /> An RF portion for receiving and transmitting data<br /> A module with a baseband microprocessor<br /> Memory<br /> An interface to the host device (such as a mobile phone)<br />
  7. 7. Bluetooth Goals<br />􀁺 Open Specification<br />􀁺 Voice and Data Capability<br />􀁺 Worldwide Usability<br />􀁺 Short-Range Wireless Solutions<br />
  8. 8. Specification v1.1 Profiles<br />􀁺 Generic Access Profile<br />􀁺 Service Discovery Application Profile<br />􀁺 Serial Port Profile<br />– Virtual COM port<br />– Dial-up Networking Profile<br />– FAX Profile<br />– LAN Access Profile<br />– Headset Profile<br />
  9. 9. MOBILE IP:<br />Inorder for the mobile host to receive messages at its new location,<br />it must obtain an IP address in the new network, and messages<br />sent to the original IP address need to be forwarded to the new IP<br />address.<br />Mobile IP has two addresses for a mobile host: <br /> One home address and one care-of address. The home address is permanent. The care-of address changes as the mobile host moves from one network to another.<br />
  10. 10. The IP addresses are designed to work with stationary hosts because part of the address defines the network to which the host is attached.<br />Home address and care-of address:<br />
  11. 11. In the mobile-IP protocol this support is provided by<br />two servers, namely, the foreign agent and the home agent<br />.<br />
  12. 12. Home agent and foreign agent:<br />Home Agent <br />When the mobile host and the foreign agent are the same, the care-of address is called a co-located care-of address.<br />
  13. 13. Remote host and mobile host communication:<br />Mobile IP does not use a new packet type for agent advertisement, it uses the router advertisement packet of ICMP, and appends an agent advertisement message.<br />
  14. 14. Agent advertisement:<br />Mobile IP does not use a new packet type for agent solicitation, it uses the router solicitation packet of ICMP.<br />
  15. 15. Registration request and reply:<br />
  16. 16. Registration reply format:<br />A registration request or reply is sent by UDP using the well-known port 434.<br />
  17. 17. Data transfer:<br />The movement of the mobile host is transparent to the rest of the Internet.<br />
  18. 18. INEFFICIENCY IN MOBILE IP:<br />Communication involving mobile IP can be inefficient. A severe case is called double crossing or 2X. A moderate case is called triangle routing or dog-leg routing.<br />Double crossing:<br />
  19. 19. Triangle routing:<br />
  20. 20. When the Mobile IP protocol is deployed, subnets which are<br />supporting a large number of mobile hosts will need to have multiple<br />mobility agents in order to provide an adequate level of service.<br />In this paper we presented a means of evenly distributing<br />the load among multiple home agents in the Mobile IP protocol.<br />By providing a mechanism which allows incoming packet<br />streams to be transferred from one home agent to another, we<br />may achieve gains over schemes in which each packet stream is<br />only served by a single home agent<br />

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