4g

4G

ByMrinmoy Mukherjee

4G

1G2G

3G 4G

Generation of cellular wireless

-Voice Transmission

s

-Voice Transmission

-Data Transmission

FEATURES

- High-speed data access and videoConferencing- Worldwide roamingusing a single handheld device.

- Extremely high available bandwidth

3G1G & 2G

4G

First-generation of wireless telephone technology, mobile telecommunications

Telecommunications standards that were introduced in the 1980s

Uses digital signaling to connect the radio towers to the rest of the telephone system

AN OVERVIEW OF 1G, 2G, 3G

1G2G

launched on the GSM standard in Finland by Radiolinja in 1991

Phone conversations were digitally encrypted

Lower power emissions helped address health concerns.

Lower powered radio signals require less battery power

All-digital allowed for the introduction of digital data services, such as SMS and email.

Enhanced privacy

3G

3rd Gene is a family of standards for mobile telecommunications

The first pre-commercial 3G network was launched by NTT DoCoMo in Japan

3G networks offer a greater degree of security than 2G predecessors

Services include -wide-area wireless voice telephone,

- video calls- wireless data

Comparison of 1G&2G

The main difference between two succeeding mobile systems 1G and 2G is that the radio signals that 1G network uses are analog, while 2G network are digital

In comparison to 1G’s analog signal, 2G’s analog signal are very reliant on location and distance.

Although both systems use digital system use digital signaling to connect the radio tower to the rest of the telephone systems. The voice itself during a call is encoded to digital signals in 2G, where 1G is only modulated to higher frequency

4GThe term 4G is used broadly to include several type

of broad band, wireless access communication systems, not only cellular telephone systems.

The new generation of wireless is intended to compliment and replace the 3G system.

4G can also be defined as “MAGIC”M- Mobile MultimediaA-Anytime AnywhereG-Global Mobility SupportI-Integrated Wireless SolutionC-Customized personal service

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2G – 2nd Generation Mobile System GSM, IS-95, cdmaOne Low-bit-rate data

3G – 3rd Generation Mobile System Higher-data-rate service New technology

GPRS IMT-2000 Bluetooth WLAN HiperLAN

Independent systems, all have there own shortcomings

A single system is needed to replace all of them – 4G

4G an overview

4G-FeaturesThese features means services can be

delivered and be available to the personal preference of different users and support the users traffic, Air interfaces, Radio environment and quality of services.

The 4G systems, will inter-operate with the 2G and 3G systems as well as with, digital broadcasting system.

The key concept is integrating the 4G capabilities with all of the existing mobile technologies through advanced technologies.

Key attributes of 4G

Support for Multiple Applications and Services

Quality of Service

Network Detection and Network Selection

Seamless Handover and Service Continuity

Technology and Topology Independence

Support for Multiple Applications and Services Efficient support for unicast, multicast and

broadcast services and the applications that rely on them.

Quality of Service Consistent application of admission control and scheduling algorithms regardless of underlying infrastructure and operator diversity.

Network Detection and Network Selection A mobile terminal that features multiple radio technologies or possibly uses software defined radios if economical, allows participation in multiple networks simultaneously

Seamless Handover and Service Continuity Support for this function requires continuous transparent maintenance of active service instances and inclusion of various access technologies, from WiFi

ConclusionIt is inevitable that 4G would completely

replace 3G in long run.In order for 4G to grow on the future market,

it is unavoidable to compute with 3G and acquire 3G’s customer.

Technology and Topology Independence Services not constrained by topology or

technology limitations, but rather achieve the “Always Best Connected” characteristic.

Questions ???

Thank you !!!