Networks connect nearly every computer through direct internet links or local area networks using communication. Wireless networks have advantages over wired networks like reduced clutter and increased portability and mobility by allowing connection from fixed locations and on the move. However, wireless networks still have lower data transfer rates and increased risks of interference compared to wired networks. Modern cell phones integrate many wireless technologies for both local and wide area connectivity for voice, data and video including WiFi, Bluetooth, GPS and upcoming 4G and 5G networks.

2. Networks are everywhere in today's world. Nearly every
computer connects to some type of network, whether it is a
direct link to the Internet or a local LAN composed of many
different devices. In any case, communication is the key.
Wireless has several advantages over traditional physically
connected networks. Most visibly, it helps to reduce chaos
caused by tangled cables. More importantly, wireless seeks to
address two issues that are becoming increasingly critical:
portability and mobility. Portability refers to the ability to easily
move from one fixed location to another.
Wireless has the potential to make this easy, eliminating the
need for pre-planned jacks and extra cables. Mobility is the
concept of being able to maintain a connection even while on
the move. Can I access my email while on the bus, or while
walking down the street?
No technology is perfect, though. Despite rapid improvement
over the last several years, wireless still has lower transfer rates
than even low-end cable connections. There is the risk of
increased interference, both from background noise and from
competing wireless broadcasts; while signals can collide on cable
networks, it is much easier to regulate traffic in order to prevent
problems.

6. Modern cellular handset designs are incorporating a wide
variety of wireless interfaces. Wide area network (WAN)
technologies are rapidly migrating from second generation voice
interfaces to GPRS, EDGE, CDMA2000, WCDMA, and HSDPA that
offer voice along with high speed data. WLAN technology,
IEEE802.11a/b/g, is finding its way into handset designs and
offers an attractive interface for high speed wireless data and
voice over IP (VOIP) services. Wireless personal area networks
(PAN) such as Bluetooth are also finding wide adoption. On top
of this, GPS now ships in millions of handsets each year, digital
broadcast television holds promise for widespread adoption
within a few years, UWB products are coming to market, and
advanced interfaces such as 4G WANs and cognitive radios are
under discussion for the future. This offers a view of how all
these standards will impact wireless services and what it will
mean for handset design.
Examples- Computer, car, airplane, etc.. because these
technologies will be always asymptotically approaching the
highest functional performance for their functionality but the
technology themselves do not alter the actual purpose

7. The U.S. has long been a leader in wireless technology and
spectrum innovation, and we currently occupy the top spot in
fourth generation (4G) wireless penetration worldwide.
However, even as countries around the world are still
deploying 4G wireless networks, the race is on to develop the
framework for fifth generation (5G) wireless communications
services and technologies.
5G networks offer the promise of dramatically faster wireless
broadband services, but perhaps as importantly, they will
enable a vast universe of wirelessly enabled devices, and
facilitate tremendous advances in manufacturing,
transportation and many other fields. As such, public and
private sector stakeholders from countries around the world
have begun to put "stakes in the ground" in an effort to
shape the 5G landscape to benefit their national and
commercial interests.
Chairman Wheeler outlined an American vision for 5G that
relies on competition, regulatory flexibility, and efficient free
market solutions so the U.S. can continue to lead the world in
wireless and deliver the benefits of next-generation wireless
networks to consumers and businesses alike.