Already in the planning stages are 4G systems that allow for
even more amazing voice and data possibilities. Although we
don’t expect to see any real 4G systems for another 5 to 7 years,
working conferences on the topic were held in 2000. 4G systems
based on Orthogonal Frequency Division Multiplexing
(OFEM) technology are rumored to be 50 times faster than
3G, with bandwidth reaching 100 Mbps.
This capacity will enable multimedia applications such as
three-dimensional (3D) renderings and other virtual experiences.
Sophisticated knowledge management systems, speech
recognition, and GPS also will be offered. This all implies that
future wireless devices will have far greater storage and processing
capabilities than current devices without increased
power consumption.