01-10-2010, 03:53 PM
4g wireless systems seminars
Submitted By:
Tapan Yadav &
Sourabh sharma
abstract
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 adventof the Internet, the most-wanted feature is better, faster access to information. Cellularsubscribers pay extra on top of their basic bills for such features as instant messaging, stockquotes, and even Internet access right on their phones. But that is far from the limit offeatures; manufacturers entice customers to buy new phones with photo and even videocapability. It is no longer a quantum leap to envision a time when access to all necessaryinformation — the power of a personal computer — sits in the palm of one’s hand. Tosupport such a powerful system, we need pervasive, high-speed wireless connectivity.A number of technologies currently exist to provide users with high-speed digital wirelessconnectivity; Bluetooth and 802.11 are examples. These two standards provide very highspeednetwork connections over short distances, typically in the tens of meters. Meanwhile,cellular providers seek to increase speed on their long-range wireless networks. The goalis the same: long-range, high-speed wireless, which for the purposes of this report will becalled 4G, for fourth-generation wireless system. Such a system does not yet exist, nor willit exist in today’s market without standardization. Fourth-generation wireless needs to bestandardized throughout the United States due to its enticing advantages to both users and providers.
