BJB AUTONOMOUS COLLEGE BHUBNANESWAR 2015-16

“Challenges in the Migration to 4G”

DEPARTMMENT OF ELECTRONICS AND TELECOMMUNICATION

SEMINAR REPORT ON

SEMINAR ON “Challenges in the Migration to 4G”

Internal Guide : Mr Pradeepta Kumar Dash

PRESENTED BY- Birja Bhanu Guia Roll .No : 2011ETC012

CONTENTIntroduction

Overview of the ChallengesResearch Challenges

Mobile StationMultimode User TerminalsWireless System DiscoveryWireless System Selection

SystemTerminal MobilityNetwork Infrastructure and QoS SupportSecurityFault Tolerance and Survivability

ServiceMulti-operators and Billing SystemPersonal Mobility

Future ScopeConclusion

Introduction –

Why Migration leads to 4G ?

Over the past two decades, the way people communicate, stay informed and are entertained has changed dramatically.

Introduction – Why Migration leads to 4G ?

There have been two major technologies driving this change: the Internet and mobile wireless communication.However, people have a certain expectation for their Internet experience that the mobile wireless environment has not fully met since the speed at which they can access their services has been limited. Mobile operators realize if they are to succeed in today’s communications landscape, they must address the quality of experience for their users. As a result, they are deploying broadband network technologies, such as 3G and enhanced 3G With wireless broadband, people will more readily access their Internet services , such as blogging, social networking etc. Changes in mobile communications have always been evolutionary. It will be a transition from 3G to 4G over a period of several years. As a result, mobile operators must look for strategies and solutions that will enhance their existing 3G networks, while addressing their 4G.

Earlier Generation :o 2G – 2nd Generation Mobile System

o GSM, IS-95, cdma Oneo Low-bit-rate data

o 3G – 3rd Generation Mobile Systemo Higher-data-rate serviceo New technology

o GPRSo IMT-2000o Bluetootho WLANo HiperLAN

o Independent systems, all have there own shortcomingso A single system is needed to replace all of them – 4G

o 4G – 4th Generation Mobile Systemo Key Features from Users’ Point of View

o High usability: anytime, anywhere, and with any technologyo Support for multimedia services at low transmission costo Personalizationo Integrated services

o All-IP based network – any system / any time / any whereo Telecommunications services + data and multimedia serviceso Personalized serviceo Facilities for integrated services

o Challenge to Migrate to 4Go Mobile stationo Systemo Service

4th Generation

Overview of the Challenges

Overview of the Challenges

o Mobile Stationo Multimode User Terminals

o Systemo Terminal Mobility

o Serviceo Multi-operators and Billing Systemo Personal Mobility

Research Challenges –

I. Mobile Station

Research Challenges

Mobile Stationo Multimode User Terminals

o Needs: terminals can adapt themselves for different wireless networks

o Challenge – current technology is not completely feasibilityo One antenna and one LNA cannot serve the wide range of

frequency bandso Need multiple analog parts

o Existing ADCs are not fast enougho The fastest current ADC is still 2 to 3 orders slower

o Needs more interface functions for real-time executiono More functions cause high circuit complexity

o Wireless System Discoveryo GSM – periodically broadcasto 4G – more complicated because of difference in network and protocols

o Solution and Challengeo Scanning by software radioo Load required software for networko OTA (Over The Air)

o Free users from downloado Simplify network Managemento Long downloading time

o Wireless System Selectiono Needs

o Right network ensure QoS (Quality of Service)

o Challengeo Network change from time to time – complicated to selecto Adequate knowledge of networks is required to make the

selectiono Precise understanding of supported serviceo System data rateso QoS requirements

Research Challenges – II. System

Research Challenges – Systemo Terminal Mobility

o Allows user to roam across networks

o Solutions and Challengeso Location management

o Original and current located cells

o Handoff managemento System load, handover

latencyo Real-time multimedia

serviceo No latency!

o Network Infrastructure and QoS Supporto Background

o Non-IP-based system – Voice deliveryo GSM, CDMA2000, UMTS

o IP-based system – Data serviceo 802.11, WLAN

o Security and Privacyo Background

o 2G / 3G: different standards implemented for their unique feature

o Existing security schemes are inadequate for 4Go Challenge

o Key concern for 4G – Flexibilityo Should be applied to different technologies and

devices

Research Challenges – III . Service

Research Challenges – Serviceo Multi-operators and Billing System

o Backgroundo Today’s system – a flat rate based billing systemo 4G – more comprehensive billing and accounting system

o Challengeo User subscribe to many services from many providers at same

timeo One Single Billing Method Covers All

Personal Mobility

Future Scope

The Framework for 4G System i.e Challenges and Possible Solutions which are required for Further Research are Needed in the Specified Domain.

The deployment of LTE is another step in the evolution of the mobile network.

While the deployment of 4G radio access networks receives considerable attention.

As such, mobile operators are looking for solutions that provide them with the highest levels of flexibility in architecting their networks the high-performance and intelligence required for an enhanced subscriber experience.

Conclusion Changes in mobile communications have always been

evolutionary. It will be a transition from 3G to 4G over a period of several years, as is the case still with the transition from 2G to 3G.

As a result, mobile operators must look for strategies and solutions that will enhance their existing 3G networks, while addressing their 4G.

The deployment of LTE is another step in the evolution of the mobile network. While the deployment of 4G radio access networks receives considerable attention.

As such, mobile operators are looking for solutions that provide them with the highest levels of flexibility in architecting their networks the high-performance and intelligence required for an enhanced subscriber experience.

Thank You