- 4G is the short term for fourth-generation wireless, the stage of broadband mobile communications that will supercede the third generation (3G). While neither standards bodies nor carriers have concretely defined or agreed upon what exactly 4G will be, it is expected that end-to-end IP and high-quality streaming video will be among 4G's distinguishing features. Fourth generation networks are likely to use a combination of WiMAX and WiFi.

Technologies employed by 4G may include SDR (Software-defined radio) receivers, OFDM (Orthogonal Frequency Division Multiplexing), OFDMA (Orthogonal Frequency Division Multiple Access), MIMO (multiple input/multiple output) technologies, UMTS and TD-SCDMA. All of these delivery methods are typified by high rates of data transmission and packet-switched transmision protocols. 3G technologies, by contrast, are a mix of packet and circuit-switched networks.

When fully implemented, 4G is expected to enable pervasive computing, in which simultaneous connections to multiple high-speed networks provide seamless handoffs throughout a geographical area. Network operators may employ technologies such as cognitive radio and wireless mesh networks to ensure connectivity and efficiently distribute both network traffic and spectrum.

The high speeds offered by 4G will create new markets and opportunities for both traditional and startup telecommunications companies. 4G networks, when coupled with cellular phones equipped with higher quality digital cameras and even HD capabilities, will enable vlogs to go mobile, as has already occurred with text-based moblogs. New models for collaborative citizen journalism are likely to emerge as well in areas with 4G connectivity.

A Japanese company, NTT DoCoMo, is testing 4G communication at 100 Mbps for mobile users and up to 1 Gbps while stationary. NTT DoCoMo plans on releasing their first commercial network in 2010. Other telecommunications companies, however, are moving into the area even faster. In August of 2006, Sprint Nextel announced plans to develop and deploy a 4G broadband mobile network nationwide in the United States using WiMAX. The United Kingdom's chancellor of the exchequer announced a plan to auction 4G frequencies in fall of 2006.

4G technologies are sometimes referred to by the acronym "MAGIC," which stands for Mobile multimedia, Anytime/any-where, Global mobility support, Integrated wireless and Customized personal service.

CONTRIBUTORS:

Subhash Nigam and Peter Siljerud

I know there are many wireless broadband in Malaysia now day such as Maxis wireless broadband, Celcom wireless broadband, Jaring wireless broadband, TMnet Streaymx wireless broadband and etc. Today, I received a brochure that make me shock with a word "4G wireless broadband in Malaysia. Is that really so called 'real' 4G wireless broadband in Malaysia. What is the "4G" broadband speed?

A company called "Izzi - Anyone can surf, anywhere" that sell them self "4G" wireless broadband in Malaysia. They provides packages included:

iZZione card terminal is an ultra lightweight PCMCIA card that offers extreme mobility and Internet connectivity on-the-go within its network coverage areas. Top-notch mobile wireless broadband experience is within reach even when speed is in an excess of 100km/hr.

Transform your laptop into a multitasking powerhouse in no time for multimedia performances and endless possibilities for work and play.Take mobility and flexibility with you wherever you go, whenever you and your family travel. Embrace cutting edge mobile wireless broadband Internet access by iZZione!

iZZiyou USB terminal is about conveniently connecting you to fast mobile wireless broadband Internet access.

Sophisticatedly engineered with style and portability in mind, iZZiyou USB terminal not only has a class of its own but also redefines versatility and functionality.

Indulge in true mobile wireless broadband Internet access with infinite excitements and fascinations!

iZZipro desktop terminal not only serves as a value added benefit to one single computer or a network of computers, but it also brings your mobile wireless broadband connectivity to the next level.

Appearing as a traditional modem but with performance that outsmarts the conventional device, iZZipro is well-equipped with a powerful antenna and Ethernet as well as USB ports for enhanced speedy connection. Relocation is never an obstacle as you can journey through cities and vicinities without much hassle. It's simply the ideal companion for both home and business users who demand for high speed broadband Internet connectivity.

I'm sure you're also interested to know about the coverage, check here. Please feel free to check http://www.izzi.com.my for more products & packages details.

If you're not happy with the services, you may entitle to 'Money Back Guarantee' such as 7 days 100% refund, 3 months 75% refund & 6 months 50% refund with the return of "4G" card in good working condition.

Again another interesting part, If you subscribe to iZZi today, you're stand a chance to drive home a BMW 320i, 18 x Samsung 42" LCD TV, 54 x branded notebooks, 72 x Sony PSP, 162 x Apple iPod or 792 x iZZi 1 month subscription.

My advise is check and search in those famous web site or forums before subscribe to any wireless or wired broadband services in your area.