51.84 Mb/s 16-CAP ATM LAN standard

• Published in: IEEE journal on selected areas in communications Vol. 13; no. 4; pp. 620 - 632
• Main Authors: Im, G.-H., Harman, D.B., Huang, G., Mandzik, A.V., Nguyen, M.-H., Werner, J.-J.
• Format: Journal Article
• Language: English
• Published: IEEE 01.05.1995
• Subjects: ANSI standards; Asynchronous transfer mode; Bandwidth; Local area networks; Physical layer; Power cables; Scalability; Spine; Transceivers; Wiring
• ISSN: 0733-8716; 1558-0008
• DOI: 10.1109/49.382153

The paper describes the characteristics and performance of the 16-CAP transmission scheme that has been chosen by the Technical Committee of the ATM Forum as the ATM LAN physical layer interface standard at 51.84 Mb/s for category 3 unshielded-twisted-pair (UTP) wiring. The two most attractive features of the 16-CAP transceiver are its capability of operating in the presence of multiple users in a voice-grade UTP cable and the straightforward way in which it can provide scalability to lower speeds. It is also shown in the paper how the carrierless AM/PM (CAP) modulation scheme used for the ATM LAN standard can be utilized to provide substantially higher data rates than 51 Mb/s when there is only one user in a cable. Under this condition, data rates up to 155 Mb/s can be achieved over category 3 wiring and significantly higher rates can be achieved over high-performance category 5 wiring.< >