4 G Wireless Systems

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Fourth generation wireless system is a packet switched wireless system with wide area coverage and high throughput. It is designed to be cost effective and to provide high spectral efficiency. The 4g wireless uses Orthogonal Frequency Division Multiplexing (OFDM), Ultra Wide Radio Band (UWB), and Millimeter wireless. Data rate of 20mbps is employed. Mobile speed will be up to 200km/hr

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4 G Wireless Systems

  1. 1. TO ONE AND ALL
  2. 2. SEMINAR ON 4G WIRELESS SYSTEMS
  3. 3. Introduction <ul><li>4G is an initialism of the term Fourth-Generation Communications System. </li></ul><ul><li>A 4G system will provide an end-to-end IP solution where voice , data and streamed multimedia can be served to users on an &quot;Anytime, Anywhere&quot; basis at higher data rates than previous generations. </li></ul><ul><li>No formal definition is set as to what 4G is, but the objectives that are predicted for 4G can be summarized as follows: </li></ul>
  4. 4. Introduction - cont’d
  5. 5. ECONOMIC IMPACTS <ul><li>Advantages of 4G </li></ul><ul><li>Barriers to Progress </li></ul><ul><li>Problems with the Current System </li></ul>text messaging Cingular e-mail, pictures, games, music, Internet T-Mobile (Voice Stream) e-mail, pictures, games, music, Internet Nextel e-mail, pictures, games, music, Internet Verizon e-mail, games, music AT&T e-mail, pictures, games, music, Internet Sprint Features Cellular provider
  6. 6. Cellular Provider System Upgrades
  7. 7. WIRELESS SECURITY <ul><li>History </li></ul><ul><li>Stakeholders in Wireless Security </li></ul><ul><li>Wireless Security Issues </li></ul><ul><li>Information Security Model </li></ul>
  8. 8. WIRELESS SECURITY <ul><li>Security Analysis </li></ul><ul><ul><li>Objectives </li></ul></ul><ul><ul><li>Threats </li></ul></ul><ul><ul><li>Security Architecture </li></ul></ul><ul><ul><ul><li>Complete </li></ul></ul></ul><ul><ul><ul><li>Efficient </li></ul></ul></ul><ul><ul><ul><li>Effective </li></ul></ul></ul><ul><ul><ul><li>Extensible </li></ul></ul></ul><ul><ul><ul><li>User-friendly </li></ul></ul></ul>
  9. 9. CURRENT TECHNOLOGY <ul><li>TDMA </li></ul>Time Division Multiple Access
  10. 10. CURRENT TECHNOLOGY <ul><li>CDMA </li></ul>Sending Data using Code Division Multiple Access
  11. 11. CURRENT TECHNOLOGY <ul><li>CDMA </li></ul>Receiving Data using Code Division Multiple Access
  12. 12. 4G HARDWARE <ul><li>Ultra Wide Band Networks </li></ul><ul><li>Smart Antennas </li></ul><ul><ul><li>Switched Beam Antennas Adaptive Array Antennas </li></ul></ul>
  13. 13. 4G SOFTWARE <ul><li>Software Defined Radio </li></ul><ul><li>Packet Layer </li></ul><ul><li>Packets </li></ul><ul><ul><li>Advantages </li></ul></ul><ul><ul><ul><li>More Flexible </li></ul></ul></ul><ul><ul><ul><li>More Reliable Packets </li></ul></ul></ul><ul><ul><ul><li>Proven Technology </li></ul></ul></ul><ul><ul><ul><li>Easier to Standardize </li></ul></ul></ul><ul><ul><ul><li>Extensible </li></ul></ul></ul><ul><ul><li>Disadvantages </li></ul></ul>
  14. 14. 4G SOFTWARE <ul><li>Implementation of Packets </li></ul><ul><ul><li>Current System: IPv4 </li></ul></ul><ul><ul><li>Recommended System: IPv6 </li></ul></ul><ul><ul><li>Voice over IP (VoIP) </li></ul></ul><ul><li>Encryption </li></ul><ul><li>Flexibility </li></ul><ul><li>Anti-Virus </li></ul>
  15. 15. Conclusion
  16. 16. Conclusion <ul><li>Consumers demand that software and hardware be user-friendly and perform well . </li></ul><ul><li>The Wireless industry and the business environment are well equipped and will play a major role in the global development for years to come. </li></ul><ul><li>The software that consumers desire is already in wide use. </li></ul><ul><li>The cellular telephone industry, which now includes a myriad of wireless devices, is no exception. </li></ul><ul><li>This is a need that demands a solution. Today’s wired society is going wireless, and it has a problem. 4G is the answer. </li></ul>
  17. 17. ANY &quot;QUERIES&quot;

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