Term Paper on "Wireless Communication"

Term Paper 3 pages (1008 words) Sources: 3 Style: MLA

[EXCERPT] . . . .

Wireless communication has evolved much since the 1880's when Marconi first invented the radio. Since then wireless communication was mostly used for military purposes during World War 1 and 2. However, the proliferation of television and the era of computers offered a whole new domain of wireless applications. Today, wireless LANs provide an entirely new level of service that cannot be offered by traditional wired communication. Wireless networks have considerably influenced our day-to-day life. The new applications of Wireless networks have drastically improved our connectivity from a limited to an ever-expanding world of information. The birth of cellular technology, infrared and spread spectrum radio services have revolutionized our world of communication. The continuous progress in Wireless technology has made the dream of a mobile workforce already a reality. Let us briefly touch upon the various important developments of wireless communication devices and protocols such as the bluetooth, EDGE, the emergence of 3G networks, and the future of wireless technologies.

Bluetooth

Bluetooth was born in 1998 from a joint effort of IBM, Ericsson, Intel, Nokia and Toshiba. Bluetooth represents a single chip, radio-based wireless network that considerably reduces the cost factor involved in a typical wireless infrastructure. Bluetooth offers total freedom from wired networks and infrastructure-based wireless networks. Bluetooth uses frequency band in the range of 2.4 GHZ and uses frequency hopping as well as time-division duplex scheme of data transmission. Typically a hopping rate of 1,600 hops per second is used. [Jochen Schiller, 206] by using the radio communication, bluetooth technology enables communication between the different portable communication devices thereby totally eliminating the use of cables. This is made possible by embedding small radio chips called 'Bluetooth chips' inside the gadgets. This way, data that is transmitted by the blue chip in the transmitting gadget, can be deciphered back by the blue chip at the receiving gadget. By partnering with UWB, Bluetooth SIG is all set towards a whole new future and new applications for the technology. [University of Denver]

EDGE

Over the last few years enhancements have been made to the existing 2G (GSM), 2.5 G (GPRS) networks. EDGE (enhanced data rates for GSM evolution) has considerably increased the data transfer rates for mobile phones so that high-speed technologies such as Internet could be accessible over the phone. EDGE provides high-speed packet access (HSPA) for any packet switching application. As a simple software upgrade, EDGE has almost tripled the speed of existing GSM networks and provided a cost effective solution for 3G networks. With EDGE / WCDMA, a mobile user can be continuously connected on roaming anywhere in the world. EDGE offers a smooth transition into the world of 3G mobile services currently in vogue even as research is already on into the development of 4G communication networks. [Timo Halonen]

Ultra Wideband

The development of much faster and economical wireless systems continues at a rapid pace. We are on the verge of ultra fast wireless systems as the technology still awaits the federal commission approval. This much-awaited UWB (ultra wideband transmission) would have… READ MORE

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