4G wireless tech

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4g wireless technology

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PowerPoint Presentation:

PRESENTING BY DHANYA.K ANISHA SHAREN.M FROM ARM COLLEGE OF ENGINEERING

CONTENTS:

CONTENTS INTRODUCTION WHAT IS 4G? NEED FOR 4G * VIEW OF 4G * 3G vs. 4G & MOBILE EVOLUTION 4G ARCHITECTURE & ITS ACCESS OPTIONS FEATURES APPLICATIONS ADVANTAGES DISADVANTAGES

INTRODUCTION:

INTRODUCTION 4G is the next major generation of mobile cellular systems, to be deployed around the year 2015 4G networks are projected to provide speeds of 100 Mbps while moving and 1 Gbps while stationary.

What is 4g?:

What is 4g? New Technology Advancements Radio Technology - Orthogonal Frequency-Division Multiplexing (OFDM) Antenna - Multiple Input-Multiple Output (MIMO) Improved Performance Speed Lower Latency QoS

A VIEW OF 4G:

A VIEW OF 4G Domain of 4G extends beyond 1G, 2G, and 3G > 2 Mbps in a wide-area mobile system (> 20 Mbps peak) Could coexist with 2G and 3G 4G is not necessarily defined by the bit rate, but by a significant advance in system capability beyond what can be achieved with 3G

Mobile evolution:

Mobile evolution

PowerPoint Presentation:

3G vs. 4G 3G 4G Frequency Band: 1.8 – 2.5GHz 2 – 8GHz Forward error correction (FEC): 3G uses Turbo codes for error correction. Concatenated codes are used for error corrections in 4G. Data Throughput: Up to 3.1mbps Practically speaking, 3 to 5 mbps but potential estimated at a range of 100 to 300 mbps. Services And Applications: CDMA 2000, UMTS, EDGE etc Wimax , LTE and Wi-Fi

4G ARCHITECTURE :

4G ARCHITECTURE

4G Access Options:

4G Access Options Embed 4G technology into all end-user devices Develop mobile personal gateways Develop external interfaces with 4G peripherals

Features:

Features Wireless Internet with a bandwidth much wider than the 2G or 3G networks - 100 MHz Significantly increased the speed of data transmission - up to Gbps 1 st Calls video conference - with more than 2 speakers, and because the flow of data faster will be less problems, not so often as to break with the 3G . The enhanced security features to prevent fraud and theft . The larger bandwidth for data sharing are relatively inexpensive

application:

application *Right now, Sprint has 4G in two phones (the HTC EVO 4G and the Samsung Epic 4G) and a bunch of modems. Sprint's 4G WiMAX network covers many but not all major cities of the U.S.

advantages:

advantages Higher bandwidth At the present rates of 15-30 Mbit /s, 4G is capable of providing users with streaming high-definition television. At rates of 100 Mbit /s, the content of a DVD-5(for example a movie), can be downloaded within about 5 minutes for offline access.

disadvantages:

disadvantages *New technology which makes it more expansive than 3G. *Capable of being attacked (jamming frequencies). *Invasion of privacy increased.

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