30-09-2010, 01:28 PM
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4G Wireless Systems
Introduction
Consumers demand more from their technology. Whether it be a television, cellular phone,
or refrigerator, the latest technology purchase must have new features. With the advent
of the Internet, the most-wanted feature is better, faster access to information. Cellular
subscribers pay extra on top of their basic bills for such features as instant messaging, stock
quotes, and even Internet access right on their phones. But that is far from the limit of
features; manufacturers entice customers to buy new phones with photo and even video
capability. It is no longer a quantum leap to envision a time when access to all necessary
information — the power of a personal computer — sits in the palm of one’s hand. To
support such a powerful system, we need pervasive, high-speed wireless connectivity.
A number of technologies currently exist to provide users with high-speed digital wireless
connectivity; Bluetooth and 802.11 are examples. These two standards provide very highspeed
network connections over short distances, typically in the tens of meters. Meanwhile,
cellular providers seek to increase speed on their long-range wireless networks. The goal
is the same: long-range, high-speed wireless, which for the purposes of this report will be
called 4G, for fourth-generation wireless system. Such a system does not yet exist, nor will
it exist in today’s market without standardization. Fourth-generation wireless needs to be
standardized throughout the United States due to its enticing advantages to both users and
providers.
4G Wireless Systems
Introduction
Consumers demand more from their technology. Whether it be a television, cellular phone,
or refrigerator, the latest technology purchase must have new features. With the advent
of the Internet, the most-wanted feature is better, faster access to information. Cellular
subscribers pay extra on top of their basic bills for such features as instant messaging, stock
quotes, and even Internet access right on their phones. But that is far from the limit of
features; manufacturers entice customers to buy new phones with photo and even video
capability. It is no longer a quantum leap to envision a time when access to all necessary
information — the power of a personal computer — sits in the palm of one’s hand. To
support such a powerful system, we need pervasive, high-speed wireless connectivity.
A number of technologies currently exist to provide users with high-speed digital wireless
connectivity; Bluetooth and 802.11 are examples. These two standards provide very highspeed
network connections over short distances, typically in the tens of meters. Meanwhile,
cellular providers seek to increase speed on their long-range wireless networks. The goal
is the same: long-range, high-speed wireless, which for the purposes of this report will be
called 4G, for fourth-generation wireless system. Such a system does not yet exist, nor will
it exist in today’s market without standardization. Fourth-generation wireless needs to be
standardized throughout the United States due to its enticing advantages to both users and
providers.
