Zusammenfassung der Ressource
Architecture and
Emerging Technologies
- generation
- 1G
- 1st generation
- initial 1980's
- It has a data rate up to 2.4kbps
- Major subscribers were Advanced Mobile Phone System (AMPS), Nordic Mobile Telephone
(NMT), and Total Access Communication System (TACS).
- disadvantages
- par capacity
- reckless handoff
- inferior voice associations
- with no security
- 2G
- 2nd generation
- late 1990’s
- used in mobile telephones
- Global Systems for Mobile communications (GSM)
- chiefly used for
- voice communication
- its main features
- data rate up to 64kbps
- 2G mobile handset battery lasts longer
- Short Message Service (SMS)
- e-mail
- 2.5g
- 2nd generation cellular system
- General Packet Radio Services (GPRS)
- other amenities doesn’t commonly endow in 2G or 1G networks.
- its main features
- packet switching
- circuit switching
- data rate up to 144kbps
- 3G
- 3rd generation
- late 2000
- transmission rate up to 2Mbps.
- services based on Internet Protocol (IP)
- disadvantage
- require more power
- plans are more expensive
- Wideband
- 3.75G
- Long-Term Evolution technology (LTE)
- Fixed Worldwide Interoperability for Microwave Access (FIXED WIMAX)
- mobile data services
- provides a substantial number of users the facility to access a broad range of high speed services
- improved performance for less cost
- 4G
- 3rd Generation Partnership Project (3GPP)
- Long Term Evolution (LTE)
- Mobile Worldwide Interoperability for Microwave Access (WIMAX)
- improve the communication
- based on IP
- services
- voice
- data
- multimedia
- Digital Video Broadcasting (DVB)
- video chat
- 5G
- Beam Division Multiple
Access (BDMA)
- higher capacity
- higher data rate
- lower End to End latency
- massive device connectivity
- reduced cost
- consistent Quality of Experience
- evolution
- wireless
- device
- satellite
communication
- television
- radio transmission
has advanced
- mobile telephone
- in terms
- data rate
- coverage
- mobility
- spectral efficiency
- technology
- circuit switching
- 1G-2G-2.5G-3G-3.5G-5G
- packet switching
- 2.5G-3G-3.5G-5G
- licensed spectrum
- use
- WIFI
- Bluetooth
- WiMAX
- 3.5G-5G
- unlicensed spectrum
- 3.5G-5G