Future of Mobile Communications
#1

Submitted by:
PRADEEP KUMAR

[attachment=10868]
Future of Mobile Communications
What is Mobile Communication
The world of mobile communications

2G Mobile Systems
• GSM and CDMA one carry speech and low bit rate data.
2G service had the same switched TDM backbone, but
added a true Data Bearer and a digital voice bearer.
Data rates were still limited to the max 64kbps of a single time slot.
2.5G added a packet bearer to the mix , still limited to 64kbps slots.
4G Mobile Systems
• Access, handoff
• Location coordination
• Resource coordination to add new users
• Support for multicasting and Quality of Service
• Wireless security and authentication
• Network failure and backup
• Pricing and billing
What is Wireless Data?
• Paging/short messaging
• Transaction processing
• Subscriber information services
• Wireless remote access to host
• File transfer to/from laptop,J2ME
• Wireless Internet access
• Browsing on Laptops, PDAs ,Phones
• Messaging,E-mail,SMS,Fax,Voice,Pager
Technical Challenges
• Low-Power/Low-Cost Implementations
• Scarce Radio Spectrum
• Radio Channel Characteristics
- Limits on Signal Coverage
- Limits on Data Rates
• Efficient Network Architectures and Protocols
• Seamless Internetworking
• Security
Application
• Mobile computing in a Fieldwork Environment Ecologists, archaeologists, computer scientists and engineers
• Communication and Ad Hoc Networking in the field, prevent disaster, reduce crime and terrorism
• Health and Education
• E-Commerce, E-Business, E-Government
• Partnership Universities
• Entertainment, games, smart home
Conclusions
• In this presentation research challenges in the emigration to future networks are studied and described
• The challenges are grouped into three aspects: Mobile Station, System and Service
• Wireless technologies used to decrease crime and prevent emergency disasters and terrorism.
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