A Slide Presentation on 4 g wireless system PRESENTED BY:- SUBHASMITA SWAIN 7 th SEMESTER REGD. NO

4G

CONTENTS Introduction Generations timelines 4G data rate facts Key 4G technology Different 4G mobile phones Why 4G??? Advantages Security analysis Conclusion

Fourth generation mobile communications systems that are characterised by high-speed data rates at 20 to 100 Mbps, suitable for high-resolution movies and television, virtual. Initial deployments are anticipated in The term 4G is used broadly to include several types of broadband wireless access communication Systems, not only cellular telephone systems. INTRODUCTION

4G: Anytime, Anywhere Connection Also known as ‘Mobile Broadband everywhere’ MAGIC  Mobile Multimedia Communication  Anywhere, Anytime with Anyone  Global Mobility Support  ntegrated Wireless Solution  I ntegrated Wireless Solution  Customized Personal Service According to 4G Mobile Forum, by 2008 over $400 billion would be invested in 4G mobile projects. According to 4G Mobile Forum, by 2008 over $400 billion would be invested in 4G mobile projects. In India, communication Minister Mr. Dayanidhi Maran, has announced a national centre of excellence to work in 4G area.

History Of Mobile Telephone Technologies Technology 1G 2G 2.5G 3G 4G Design Implementation Service Analog voice, synchron ous data to 9.6 kbps Digital voice, short messages Higher capacity, packetized data Higher capacity, broadband data up to 2 mbps Higher capacity, IP oriented, multimedia data to 100 mbps Data bandwidth1.9 kbps14.4 kbps384kbps2mbps20 mbps

4G: Data rate Facts  Transmission at 100 Mbps  2000 times faster than mobile data rates  10 times faster than top transmission rates planned in final build out of 3G broadband mobile in final build out of 3G broadband mobile Companies developing 4G technology  Cellular phone companies: Alcatel, Nortel, Motorola,  IT Companies: Hughes,HP,LG Electronics

KEY 4G TECHNOLOGY Some o f the key technologies required for 4G :- OFDMA :- Orthogonal Frequency Division Multiple Access. It not only provides clear advantages for physical layer performance but also a frame work for improving layer 2 performance by giving degree of freedom OFDMA :- Orthogonal Frequency Division Multiple Access. It not only provides clear advantages for physical layer performance but also a frame work for improving layer 2 performance by giving degree of freedom SDR :- Software Defined Radio. It benefits from today’s high processing power to develop multiband, multi standard base stations and terminals. SDR :- Software Defined Radio. It benefits from today’s high processing power to develop multiband, multi standard base stations and terminals. MIMO:- Multiple Input Multiple Output. MIMO uses signal multiplexing between multiple transmitting antennas and time or frequency MIMO:- Multiple Input Multiple Output. MIMO uses signal multiplexing between multiple transmitting antennas and time or frequency

4G MOBILE PHONES

WHY 4G? Higher bandwidth enables a range of new applications!! For the consumer  Video streaming, TV broadcast  Video calls, video clips – news, music, sports  Enhanced gaming, chat, location services… For business  High speed teleworking  Sales force automation  Video conferencing  Real-time financial information

Advantages:  More secure:  There is no simple way to reconstruct data from packets without being the intended recipient.  Any type of information in a packet can be encoded because a packet doesn’t care what kind of data it carries only requiring that the receiving device know how to decrypt the data.  More Reliable: If even one bit of the information is missing, the receiving device will know and ask for the data to retransmit. If even one bit of the information is missing, the receiving device will know and ask for the data to retransmit.

Packets are also numbered so that if one is missing, the device on the receiving end will know it and ask for retransmission. Packets are also numbered so that if one is missing, the device on the receiving end will know it and ask for retransmission.  Extensible : The capacity have moved from carrying short text messages to carrying video, audio, and other huge types of data. The capacity have moved from carrying short text messages to carrying video, audio, and other huge types of data. As long as the capacity of the transmitter is large enough, a packet can carry any size of information, or a large number of packets can be sent carrying information cut up into little pieces without making any difference to the transmission hardware. As long as the capacity of the transmitter is large enough, a packet can carry any size of information, or a large number of packets can be sent carrying information cut up into little pieces without making any difference to the transmission hardware.

4G SERVICES IN ASIA CDMA (1xEV-DO) Korea: SKT, KTF Japan: AU (KDDI) WCDMA / UMTS Japan: NTT DoCoMo, Vodafone KK Australia: 3 Hutchinson Hong Kong: 3 Hutchinson

Security Analysis 4G ensures that information, resources and services are adequately protected against misuse or misinterpretation. 4G ensures that information, resources and services are adequately protected against misuse or misinterpretation. It ensures that the security features are compatible with it’s predecessor. It ensures that the security features are compatible with it’s predecessor. It ensures that the security features can be extended and enhanced as required. It ensures that the security features can be extended and enhanced as required. It also enables new ‘e-commerce’ services and other advanced applications. It also enables new ‘e-commerce’ services and other advanced applications.

Conclusion Today’s wired society is going wireless. Today’s wired society is going wireless. TV, internet, mobile, radio etc. home environment all reachable through one device i.e. 4G cell phones with HD video quality. TV, internet, mobile, radio etc. home environment all reachable through one device i.e. 4G cell phones with HD video quality. Consumers demand that software and hardware be user-friendly and perform best & expect highest quality and the greatest features from the products. Consumers demand that software and hardware be user-friendly and perform best & expect highest quality and the greatest features from the products. Also we need security and safety in every touch and the best way is to enforce 4G as the next wireless standard. Also we need security and safety in every touch and the best way is to enforce 4G as the next wireless standard. In fact we have a lot of needs that demands one solution i.e. we have a problem and “4G IS THE ANSWER TO IT”. In fact we have a lot of needs that demands one solution i.e. we have a problem and “4G IS THE ANSWER TO IT”.

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