A DSP-based research prototype reverse channel transmitter/receiver for ADSL

Author

Gottlieb, Albert M.

Author_Institution

Bellcore, Morristown, NJ, USA

Volume

iii

fYear

1994

fDate

19-22 Apr 1994

Abstract

Asymmetric digital subscriber line (ADSL) is an emerging technology for the transport of asymmetric DS1-rate services over a single copper twisted-pair in the local loop plant. One of the key ingredients to the ADSL system is the upstream low bit-rate control channel. The architecture and laboratory implementation of the low bit-rate upstream control channel is described. The system was first computer modeled, and then the transmitter/receiver were implemented around programmable digital signal processing chips (DSP) such as the TI TMS320C40. Experimental results indicate that the system is functional to loops of 18 kft

Keywords

digital signal processing chips; quadrature amplitude modulation; receivers; subscriber loops; telecommunication channels; telecommunication computing; telecommunication control; transmitters; twisted pair cables; ADSL system; QAM; TI TMS320C40; architecture; asymmetric DS1-rate services; asymmetric digital subscriber line; copper twisted-pair; experimental results; laboratory implementation; local loop plant; low bit-rate upstream control channel; programmable digital signal processing chips; quadrature amplitude modulation; research prototype; reverse channel transmitter/receiver; Copper; Crosstalk; DSL; Decision feedback equalizers; Decoding; Digital signal processing chips; Passband; Prototypes; Quadrature amplitude modulation; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.390020

Filename

390020