4G (Fourth Generation)

Fourth Generation Wireless Communication (4G)

4G refers to the fourth generation of cellular wireless standards. The bandwidth and location information available to 3G devices gives rise to applications not previously available to mobile phone users.

Figure representing 4G mobile phone

Some of the applications are:

• Mobile TV – a provider redirects a TV channel directly to the subscriber's phone where it can be watched.
• Video on demand – a provider sends a movie to the subscriber's phone.
• Video conferencing – subscribers can see as well as talk to each other.
• Tele-medicine – a medical provider monitors or provides advice to the potentially isolated subscriber.
• Location-based services – a provider sends localized weather or traffic conditions to the phone, or the phone allows the subscriber to find nearby businesses or friends
• mobile ultra-broadband (gigabit speed) access and multi-carrier transmission.
• Mobile WiMAX (Worldwide Interoperability for Microwave Access)

Keys:

• 4G is a conceptual framework and a discussion point to address future needs of a high speed wireless network.
• It offer both cellular and broadband multimedia services everywhere.
• Expected to emerged around 2010 – 2015.
• 4G should be able to provided very smooth global roaming ubiquitously with lower cost.