FOURTH- GENERATION TECHNOLOGIES

Although the 3G technologies are just emerging, people started research on fourth- generation (4G) technologies. Those researches of 4G initiatives encompass a wide range of Radio Interfaces and totally advanced wireless access infrastructure.

Two of the main research areas consist of BETTER MODULATION METHODS and SMART ANTENNA TECHNOLOGY which enable 4G wireless systems to overcome 3G wireless technology in the near future.

The following sketch will show how mobile phones are developing:

 

4G

3G                                                    UMTS

2.5G                                       GPRS                  EDGE

2G                                                    GSM

1G                                                    Analog Cellular              

  

References:

Advances in Mobile Commerce Technologies - Ee-Peng Lim, Keng Siau - Google Books. 2012. Advances in Mobile Commerce Technologies - Ee-Peng Lim, Keng Siau - Google Books. [ONLINE] Available at: http://books.google.com.au/books?hl=en&lr=&id=441qCYlVjK8C&oi=fnd&pg=PR7&dq=article+on+mobile+business+applications&ots=w124wmOaI7&sig=Oo30lvWwdeM50VTYiMnZgsnhHyw#v=onepage&q=article%20on%20mobile%20business%20applications&f=false. [Accessed 27 May 2012].