4-G TECHNOLOGY

Compiled and Presented by:

Shruti Dasgupta

CONTENT

1. What is 4-G

2. Definition

3. Need for 4-G

4. Comparison of 3-G and 4-G

5. Key Technology Areas

6. Application

WHAT IS 4G?

In telecommunications, 4G is the fourth generation of cellular wireless standards.

It is a successor to the 3G and 2G families of standards.

In 2009, the ITU-R organization specified the IMT-Advanced (International Mobile Telecommunications Advanced) requirements for 4G standards, setting peak speed requirements for 4G service at 100 Mbit/s for high mobility communication (such as from trains and cars) and 1 Gbit/s for low mobility communication (such as pedestrians and stationary users).

DEFINITION OF 4-G TECHNOLOGY

4G is not one defined technology or standard, but rather a collection of technologies and protocols aimed at creating fully packet-switched networks optimized for data.

NEED FOR 4-G TECHNOLOGY

Lower cost to user than current 3-G Technology. Higher data rate than 3-G. Service and application ubiquity High degree of personalization and

synchronization between various user appliances. Higher capacity of network. Smooth handoff across heterogeneous networks.

Seamless connectivity and global roaming across multiple networks.

Interoperability with existing wireless standards

COMPARISON BETWEEN 3-G AND 4-G

Unlike the 3G networks which are a combination of circuit switched and packet switched networks, 4G will be based on packet switching only. This will allow low-latency data transmission.

Leading U.S. Carrier 3G EVDO network currently averages 400 to 700 Kbps with peak rates up to 2 Mbps. International Carrier is testing 4G communication at 100 Mbps while moving, and 1 Gbps while stationary

COMPARISON BETWEEN 3-G AND 4-G

010

2030

4050

6070

8090

100

Mb

ps

3G 4G

THE KEY 4-G TECHNOLOGIES ARE:

OFDM (Orthogonal Frequency Division Multiplexing)

MIMO (Multiple Input-multiple Output) SDR (Software Defined Ratio)

APPLICATIONS OF 4-G

Enhanced mobile gaming. Broadband Access to remote places. Creation Virtual Presence Creation Personal Media Repository