Bandwidth-efficient digital transmission up to 155 Mb/s over unshielded twisted pair wiring
- 30 December 2002
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of ICC '93 - IEEE International Conference on Communications
- Vol. 3, 1797-1803 vol.3
- https://doi.org/10.1109/icc.1993.397590
Abstract
Techniques for achieving data rates up to 155 Mb/s over unshielded twisted pair wiring in premises distribution systems are described. These high data rates represent an improvement of about an order of magnitude in speed when compared to presently available data rates for local area networks operating over this communication medium. The transmission scheme proposed for achieving these higher data rates is carrierless AM/PM (CAP), which is a bandwidth-efficient two-dimensional passband line code. It is shown that a 32-CAP line code can be used to provide the fiber distributed data interface (FDDI) rate of 125 Mb/s over 100 m of voicegrade unshielded twisted pair (UTP) wiring in a channel bandwidth of 30 MHz, which results in a robust performance and eliminates potential problems with electromagnetic radiation limits above 30 MHz.Keywords
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