All digital 1.62 Mb/s QPSK burst-mode system for FTTC/VDSL transmission

Author

Im, Gi-Hong ; Park, Cheol-Jin

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Kyungbuk, South Korea

Volume

46

Issue

4

fYear

2000

fDate

11/1/2000 12:00:00 AM

Firstpage

1088

Lastpage

1097

Abstract

This paper presents an all digital 1.62 Mb/s quadrature phase-shift keying (QPSK) burst-mode transceiver for fiber-to-the-curb/very-high-rate digital subscriber line (FTTC/VDSL) application. In a point-to-multipoint FTTC/VDSL network architecture, a time division multiple access (TDMA) scheme is used to connect multiple user devices to the network device. We discuss the design and implementation of an all-digital burst-mode QPSK system for transmission of 1.62 Mb/s upstream data over FTTC/VDSL channel environment. All operations of the QPSK system, including power detection, demodulation, box-car filtering, fast/slow-mode carrier and timing recovery, have been realized digitally without multiplication. It is shown by theoretical and computer simulation results that the proposed QPSK transceiver operates on up to 2.5 kft (about 762 m) of 26 gauge cable with a comfortable noise margin

Keywords

demodulation; digital communication; digital subscriber lines; optical fibre subscriber loops; quadrature phase shift keying; synchronisation; time division multiple access; transceivers; 1.62 Mbit/s; 2500 feet; FTTC/VDSL transmission; QPSK burst-mode transceiver; TDMA; all digital QPSK burst-mode system; box-car filtering; computer simulation results; demodulation; fast/slow-mode carrier recovery; fast/slow-mode timing recovery; fiber-to-the-curb; network device; noise margin; point-to-multipoint network architecture; power detection; quadrature phase-shift keying; time division multiple access; upstream data; very-high-rate digital subscriber line; DSL; Demodulation; Digital filters; Filtering; Optical fiber devices; Phase shift keying; Quadrature phase shift keying; Time division multiple access; Timing; Transceivers;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.920466

Filename

920466