Wireless and ATM ( Asynchronous Transfer Mode) are in it's infancy. No standards have been defined by either the ATM Forum or ITU-T, yet. Research have been going on to develop a protocol that will run on wireless medium without much delay and errors. ATM-type wireless networks will play an important role in the broadband communications network of the future.
Since the late seventies, we have been watching movies and television serials, in which people are using mobile equipment to communicate and exchange multimedia traffic over small, handheld portable equipment. But now, due to the advent of high speed networks ( such as ATM), and recent advancement in mobile communications, visions of past are fast becoming a reality. These days people are talking and publishing their works in journals and magazines, on how to achieve this amazing feat of integrating Wireless with Broadband High Speed Networks.
Wireless personal communication networks (PCN) based on new digital technologies have emerged as an important field of activity in telecommunications . This is mainly due to the success of mobile phones, pagers, notebook computers. The days are fast approaching when we can send, receive e-mail or faxes, watch and talk at the same time, from anywhere by using a simple handheld device or a laptop computer. There are numerous applications of wireless networks. In the closing years of the th century, the current distinction between telephony and computing will disappear as communication becomes the integrated transmission of information in several media ( voice, data, image, and text); customized personal communicators developed from the concepts of personal digital assistants ( PDAs) will offer that choice of media .
Due to the recent advancement of fiber, next generation wireless networks should be designed so as to easily fit and co-exist with the Broadband ISDN (Integrated Services Digital Network). In order to avoid a serious mismatch between wireline and wireless networks, it is now timely to begin consideration of broadband wireless networks with similar service capabilities ( such as constant bit rate, variable bit rate, quality of service etc.) .
Source from : www.cse.wustl.edu
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